wireless finance terms and reference
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Wireless Finance Terms and Reference (eBook Edition)
Version: 1
www.Telecom-cloud.net
Copyright 2011 by Harish VadadaAll rights reserved.
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Introduction
As a technologist in the wireless industry for over a decade I have been flummoxed multiple times at the
financial terms and metrics that get mentioned. Hence, I decided to create this eBook to address all the
wireless financial terms and more to demystify the wireless metrics for a layman, having seen the
business in motion as an insider. The metrics described here are used as a standard to compare the
profitability and health of a network operator. My goal is to demystify the business processes and aura
surrounding the buzzwords that are used in the wireless business.
I attribute this drive of mine to all the professors and teachers that I have associated with in my life.
They had made learning fun and in the process embedding in me the bug of lifelong association of
learning, teaching and mentoring. I come from a family of teachers my grandfather was a teacher, mydads first job was a teacher and he became a teacher after he retired from the corporate world. I
attribute this passion for sharing knowledge for being in my genes. And I fuel this passion of sharing my
knowledge online through my blog www.telecomcloud.net as well as through a Social Training
network www.gyanfinder.com of which I am a cofounder.
I believe in Keeping it Simple, honest and free! Please send me suggestions and improvements and let
me know if I can help you in your endeavor.
Acknowledgements
To my parents who made me; and my wife and kids who sustain me.
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ACSI (American Customer Satisfaction Index) Created by the National Quality Research Center at the
University of Michigan. ACSI reports scores on a 0100 scale at the national level and produces indexes
for 10 economic sectors, 47 industries (including ecommerce and ebusiness), more than 225
companies, and over 200 federal or local government services. In addition to the companylevel
satisfaction scores, ACSI produces scores for the causes and consequences of customer satisfaction and
their relationships. The measured companies, industries, and sectors are broadly representative of the
U.S. economy serving American households. ACSI releases results on a monthly basis to bring
stakeholders indepth coverage of various sectors of the economy throughout the entire calendar year.
The national index is updated quarterly, factoring in ACSI scores from more than 225 companies in 47
industries; 2 local government services; and over 200 programs, services, and websites offered by 130
federal agencies.(URL: www.theacsi.org/)
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AAL (AddaLine) Add another phone service line to an existing account.
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Advantages of Proposition Unique Selling Proposition (USP), competitive advantage for the seller to
stand apart from competition. It is a marketing concept that was first proposed as a theory to explain a
pattern among successful advertising campaigns of the early 1940s. It states that such campaigns made
unique propositions to the customer and that this convinced them to switch brands. The term was
invented by Rosser Reeves of Ted Bates & Company. Today the term is used in other fields or just
casually to refer to any aspect of an object that differentiates it from similar objects.
Pinpointing USP requires some hard soulsearching and creativity. One way to start is to analyze how
other companies use their USPs to their advantage. This requires careful analysis of other companies'
ads and marketing messages. A careful analysis of what they say they sell, not just their product or
service characteristics, we can learn a great deal about how companies distinguish themselves from
competitors e.g. Neiman Marcus sells luxury, while WalMart sells bargains.
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Amortization depreciation of intangible assets. When used in the context of a home purchase,
amortization is the process by which the loan principal decreases over the life of the loan. With eachmortgage payment that is made, a portion of the payment is applied towards reduction of the principal
and another portion of the payment is applied towards paying the interest on the loan. While
amortization and depreciation are often used interchangeably, technically this is an incorrect practice
because amortization refers to intangible assets and depreciation refers to tangible assets.
The amortization calculator formula is:
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Or, equivalently
Where: P is the principal amount borrowed, A is the periodic payment, r is the periodic interest rate
divided by 100 (annual interest rate also divided by 12 in case of monthly installments), and n is the total
number of payments (for a 30year loan with monthly payments n = 30 12 = 360).
Negative amortization (also called deferred interest) occurs if the payments made do not cover the
interest due. The remaining interest owed is added to the outstanding loan balance, making it larger
than the original loan amount.
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AMPU (Average Margin per user) AMPU stands for Average Margin per User and is the difference
between the cost of serving a user and the revenue that the user generates. AMPU can be positive or
negative. Higher the AMPU, the greater the profit.
AMPU = ARPU Average Cost per User
Or
AMPU = Total Margin/ Number of Subscribers
AMPU takes into consideration both Revenue and Cost. Types of revenue factors.
Non Recurring Revenue: These are the revenue sources that are one time charge for the customer and
are to be recovered as soon as the customer enters the network.
Activation Charges
Security Deposit
Recurring Revenue: These are recovered as and when the customer makes a usage or avail off certain
Rental services.
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ARPU (Average Revenue per User) Service Revenue divided by number of subscribers. ARPU is
commonly calculated by dividing the aggregate amount of revenue by the total number of users who
provide that revenue. Other measurements are tracked as well, including the revenue generated by new
customers as compared with the revenue generated by existing customers and the revenue generated
by new services as compared with the revenue generated by existing services.
ARPU is not the best indicator of carriers health. Average Margin Per User (AMPU) or Average Profit Per
User (APPU) per month or over the life of the subscriber are better measures of carriers strategy and
execution, however, since such details are not public knowledge, ARPU trending over time provides a
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Basis Points (bps) A basis point is a unit of measure used in finance to describe the percentage change
in the value or rate of a financial instrument. One basis point is equivalent to 0.01% (1/100th of a
percent) or 0.0001 in decimal form. In most cases, it refers to changes in interest rates and bond yields.
For example, if the Federal Reserve Board raises interest rates by 25 basis points, it means that rates
have risen by 0.25% percentage points. If rates were at 2.50%, and the Fed raised them by 0.25%, or 25
basis points, the new interest rate would be 2.75%. In the bond market, a basis point is used to refer to
the yield that a bond pays to the investor. For example, if a bond yield moves from 7.45% to 7.65%, it is
said to have raised 20 basis points.
The usage of the basis point measure is primarily used in respect to yields and interest rates, but it may
also be used to refer to the percentage change in the value of an asset such as a stock. It may be heardthat a stock index moved up 134 basis points in the day's trading. This represents a 1.34% increase in the
value of the index.
1 basis point = 1 permyriad = one one-hundredth percent
1 bp = 1/100%= 0.01% = 0.1 = 104 = 110000 = 0.0001
It is frequently, but not exclusively, used to express differences in interest rates of less than 1% per year.
For example, a difference of 0.10% is equivalent to a change of 10 basis points (e.g. a 4.67% rate
increases by 10 basis points to 4.77%).
Like percentage points, basis points avoid the ambiguity between relative and absolute discussions
about interest rates by dealing only with the absolute change in numeric value of a rate. For example, if
a report says there has been a "1% increase" from a 10% interest rate, this could refer to an increase
either from 10% to 10.1% (relative, 1% of 10%), or from 10% to 11% (absolute, 1% plus 10%). If,
however, the report says there has been a "10 basis point increase" from a 10% interest rate, then we
know that the interest rate of 10% has increased by 0.10% (the absolute change) to a 10.1% rate. It is
common practice in the financial industry to use basis points to denote a rate change in a financial
instrument, or the difference (spread) between two interest rates, including the yields of fixedincome
securities.
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Below the Line expenses such as depreciation that are not directly controllable by a business owner,
therefore excluded from certain P&Ls.
Accounting: Used to characterize items in an account that are excluded from the account total, such as
appropriations and extraordinary items that have no effect on the profit or loss in the current
accounting period.
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Advertising: Used to characterize promotional methods (such as catalog marketing, direct marketing,
and trade fair marketing) those are under the direct control of the marketer (client) and earn no
commissions for the advertising agency.
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Benchmarking process of comparing ones business processes and performance metrics to industry
bests and/or best practices from other industries. Dimensions typically measured are quality, time, and
cost. Improvements from learning mean doing things better, faster, and cheaper.
Benchmarking involves looking outward (outside a particular business, organization, industry, region or
country) to examine how others achieve their performance levels and to understand the processes they
use. In this way benchmarking helps explain the processes behind excellent performance. When the
lessons learnt from a benchmarking exercise are applied appropriately, they facilitate improvedperformance in critical functions within an organization or in key areas of the business environment.
Application of benchmarking involves four key steps:
Understand in detail existing business processes
Analyze the business processes of others
Compare own business performance with that of others analyzed
Implement the steps necessary to close the performance gap
Benchmarking should not be considered a oneoff exercise. To be effective, it must become an ongoing,
integral part of an ongoing improvement process with the goal of keeping abreast of everimproving
best practice.
Strategic Benchmarking: Where businesses need to improve overall performance by examining the long
term strategies and general approaches that have enabled highperformers to succeed. It involves
considering high level aspects such as core competencies, developing new products and services and
improving capabilities for dealing with changes in the external environment.
Performance or Competitive Benchmarking: Businesses consider their position in relation to
performance characteristics of key products and services. Benchmarking partners are drawn from the
same sector. This type of analysis is often undertaken through trade associations or third parties to
protect confidentiality.
Process Benchmarking: Focuses on improving specific critical processes and operations. Benchmarking
partners are sought from best practice organizations that perform similar work or deliver similar
services.
Functional Benchmarking: Businesses look to benchmark with partners drawn from different business
sectors or areas of activity to find ways of improving similar functions or work processes. This sort of
benchmarking can lead to innovation and dramatic improvements. Improving activities or services for
which counterparts do not exist.
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Internal Benchmarking: Involves benchmarking businesses or operations from within the same
organization (e.g. business units in different countries). The main advantage of internal benchmarking is
that access to sensitive data and information is easier; standardized data is often readily available; and,
usually less time and resources are needed.
External Benchmarking: Involves analyzing outside organizations that are known to be best in class.
External benchmarking provides opportunities of learning from those who are at the "leading edge".
This type of benchmarking can take up significant time and resource to ensure the comparability of data
and information, the credibility of the findings and the development of sound recommendations.
International Benchmarking: Best practitioners are identified and analyzed elsewhere in the world,
perhaps because there are too few benchmarking partners within the same country to produce valid
results. Globalization and advances in information technology are increasing opportunities for
international projects. However, these can take more time and resources to set up and implement andthe results may need careful analysis due to national differences.
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Blue Ocean Strategy high growth and profit can be generated by creating new demand in an
uncontested market space of industries and/or markets not in existence today, a Blue Ocean, instead
of competing head to head for known customers in an existing industry, a Red Ocean. Blue oceans, in
contrast, denote all the industries not in existence todaythe unknown market space, untainted by
competition. In blue oceans, demand is created rather than fought over. There is ample opportunity for
growth that is both profitable and rapid. In blue oceans, competition is irrelevant because the rules of
the game are waiting to be set. Blue Ocean is an analogy to describe the wider, deeper potential of
market space that is not yet explored. Cirque du Soleil an example of creating a new market space, by
blending opera and ballet with the circus format while eliminating star performer and animals. (URL:
http://www.blueoceanstrategy.com/)
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Business Model describes the rationale of how an organization creates, delivers, and captures value.
The process of business model construction is part of business strategy. A business model is used for a
broad range of informal and formal descriptions to represent core aspects of a business, including
purpose, offerings, strategies, infrastructure, organizational structures, trading practices, andoperational processes and policies. Hence, it gives a complete picture of an organization from a high
level perspective.
Whenever a business is established, it either explicitly or implicitly employs a particular business model
that describes the architecture of the value creation, delivery, and capture mechanisms employed by
the business enterprise. The essence of a business model is that it defines the manner by which the
business enterprise delivers value to customers, entices customers to pay for value, and converts those
payments to profit: it thus reflects managements hypothesis about what customers want, how they
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want it, and how an enterprise can organize to best meet those needs, get paid for doing so, and make a
profit.
A business model draws on several business processes including economics, entrepreneurship, finance,marketing, operations and strategy. Some of the main components addressed by a business model are,
Value Proposition: A description of a customer problem and how the product looks to mitigate this.
Market Segment: A group of customers that is targeted by the ensuing product.
Value Chain Structure: The company's position and activities in the value chain and how the firm looks
to capture this value chain.
Revenue generation and margins: How revenue for the company is generated sales, subscriptions,
support and the cost structure associated as well as the targeted profit.
Competitive Analysis and Strategy: Identify existing competitors and how the company will address to
develop a sustainable advantage over competitors._____________________________________________________________________________________
Buyers Remorse Customer cancels service without incurring ETF within the remorse period & has
returned the device. It may stem from fear of making the wrong choice, guilt over extravagance, or a
suspicion of having been overly influenced by the seller. The anxiety may be rooted in various factors,
such as: the person's concern they purchased the wrong product, purchased it for too high a price,
purchased a current model now rather than waiting for a newer model, purchased in an ethically
unsound way, purchased on credit that will be difficult to repay, or purchased something that would not
be acceptable to others.
A prospective buyer often feels positive emotions associated with a purchase (desire, a sense of
heightened possibilities, and an anticipation of the enjoyment that will accompany using the product,
for example); afterwards, having made the purchase, they are more fully able to experience the
negative aspects: all the opportunity costs of the purchase, and a reduction in purchasing power.
Also, before the purchase, the buyer has a full array of options, including not purchasing; afterwards,
their options have been reduced to:
Continuing with the purchase, surrendering all alternatives
Renouncing the purchase
Buyer's remorse can also be caused or increased by worrying that other people may later question the
purchase or claim to know better alternatives.
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CAGR (Compound Annual Growth Rate) annualized gain of an investment over a given time period.
CAGR is often used to describe the growth over a period of time of some element of the business, for
example revenue, units delivered, registered users, etc.
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CAGR is the best formula for evaluating how different investments have performed over time. Investors
can compare the CAGR in order to evaluate how well one stock performed against other stocks in a peer
group or against a market index. The CAGR can also be used to compare the historical returns of stocks
to bonds or a savings account.
When using the CAGR, it is important to remember two things: the CAGR does not reflect investment
risk, and the same time periods must be used. Investment returns are volatile, meaning they can vary
significantly from one year to another, and CAGR does not reflect volatility. CAGR is a pro forma number
that provides a "smoothed" annual yield, so it can give the illusion that there is a steady growth rate
even when the value of the underlying investment can vary significantly. This volatility, or investment
risk, is important to consider when making investment decisions.
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Cannibalization reduction in sales volume, sales revenue, or market share of one product as a result of
the introduction of a new product by the same producer. If a company is practicing market
cannibalization, it is eating its own market. For example, say Pepsi puts out a new product called Pepsi
chill, and customers buy Pepsi chill instead of regular Pepsi. Although sales may be up for the new
product, these sales may be eating into Pepsi's original market, in which case the overall company sales
would not be increasing. Because of the possibility of market cannibalization, investors should alwaysdig deeper, analyzing the source and impact of the success of a company's new but similar product.
Identification of cannibalization is by no means clearcut and needs to take into account of the dynamics
of the market. This needs examination by three methods.
Gains loss analysis
Duplication of purchase
Deviations from expected share movements
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Capacity Charge cost of sustaining and expanding a wireless carriers infrastructure, can be assigned tousers based on bandwidth usage or other methodology.The capacity charge, sometimes called Demand
Charge, is assessed on the amount of capacity being purchased.
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Capacity Utilization extent to which an enterprise actually uses its productive capacity. It refers to the
relationship between actual output that 'is' produced with the installed equipment and the potential
output which 'could' be produced with it, if capacity was fully used.
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CAPEX/Capex (Capital Expenditure) investment to create future benefits. A capital expenditure is
incurred when a business spends money either to buy assets or to add to the value of an existing asset
with a useful life that extends beyond the taxable year. Also referred to as Capital Investments, for tax
purposes, CAPEX is a cost which cannot be deducted in the year in which it is paid or incurred and must
be capitalized. The general rule is that if the acquired property's useful life is longer than the taxable
year, then the cost must be capitalized. The capital expenditure costs are then amortized or depreciated
over the life of the asset in question.
Included in capital expenditures are amounts spent on:
Acquiring fixed, and in some cases, intangible assets
Repairing an existing asset so as to improve its useful lifeUpgrading an existing asset if its results in a superior fixture
Preparing an asset to be used in business
Restoring property or adapting it to a new or different use
Starting or acquiring a new business
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Cap-and-trade A market mechanism designed to reduce the cost of cutting pollution. The regulator
caps pollution at a level below businessasusual and allocates allowances to industry up to but not
exceeding the cap. Covered entities must have their emissions independently verified and must
surrender allowances to match their annual emissions each year, normally with penalties for non
compliance. Since the overall cap is below actual emissions, this cuts the overall level of pollution and
creates a scarcity of allowances, and therefore a monetary value. Those with a surplus may sell them to
those with a shortfall, creating a tradable market for allowances.
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Capital Efficiency ratio of output divided by CAPEX. The larger the ratio, the better the capital
efficiency. The basic formula for calculating capital efficiency involves dividing the average value of
output by the rate of expenditure for the same period of time. Output divided by expenditure will help
to make it clear if a venture is currently generating a modest profit, is approaching a point whereprofitability will be realized once expenditures are decreased, or if there is no real value in continuing to
fund the venture. While the latter situation is one to avoid at all costs, the two former possible states
are not situations that should be considered negative.
Because many business ventures begin with a higher level of capital expenditures, a project rarely
realizes a profit in the first stages of the operation. The expectation is that after the initial launch, some
expenses will be settled and not be recurring. As the rate of expenditure decreases and the output or
production increases, the opportunity for profit expands. For this reason, periodic calculation of the
capital efficiency of a project can help investors know that the project is heading in the right direction.
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Capital Intensity A business process or an industry that requires large amounts of money and other
financial resources to produce a good or service. A business is considered capital intensive based on the
ratio of the capital required to the amount of labor that is required.
Some industries commonly thought of as capital intensive include oil production and refining,
telecommunications and transports such as railways and airlines. Another example is the auto industry
which is capitalintensive because, in order to make cars, it requires a lot of workers and expensive
equipment that must be properly maintained. Another, smaller scale example is a dentist office, which
requires expensive equipment and materials. In order to stay afloat, capital intensive companies need
either consistently large profits or inexpensive credit.
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Capital Injection An investment of capital generally in the form of cash or equity and rarely, assets
into a company or institution. The word "injection" connotes that the company or institution into which
capital is being invested may be floundering or in some distress, although it is not uncommon for the
term to also refer to investments made in a startup or new company.
Capital injections in the private sector are usually made in exchange for an equity stake in the company
into which capital is being injected. However, governments may make capital injections into struggling
sectors to assist in their stabilization in the larger public interest; in such cases, a government may or
may not negotiate an equity stake in recipient companies or institutions.
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Cash Cost Per User (CCPU) Measure of the monthly cost to serve a customer, derived by dividing total
operating costs by average number of users. It is a measure of the monthly costs to operate the
business on a per subscriber basis consisting of costs of service and operations, and general and
administrative expenses of consolidated statement of operations, plus handset subsidies on equipment
sold to existing subscribers, less stockbased compensation expense.
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Churn average number of customers discontinuing service during a period. The broad definition ofchurn is the action that a customers telecommunications service is canceled. This includes both service
provider initiated churn and customer initiated churn. An example of serviceprovider initiated churn is a
customers account being closed because of payment default. Customer initiated churn is more
complicated and the reasons behind vary. Examples of reason codes are: unacceptable call quality, more
favorable competitors pricing plan, misinformation given by sales, customer expectation not met, billing
problem, moving, and change in business, and so on.
Churn can be shown as follows:
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Monthly Churn = (C0 + A1 - C1) / C0
Where:
C0 = Number of customers at the start of the monthC1 = Number of customers at the end of the month
A1 = Gross new customers during the month
As an example, suppose a carrier has 100 customers at the start of the month, acquires 20 new
customers during the month, and has 110 customers at the end of the month. It must have lost 10
customers during the month, 10 percent of the customers it had at the start of the month.
According to the formula:
Monthly Churn = (100 + 20 - 110) / 100 = 10%
In an intensely competitive environment, customers receive numerous incentives to switch and
encounter numerous disincentives to stay.
Price: Particularly in the wireless and longdistance markets, carriers often offer pricing promotions,
such as relatively low monthly fees, highvolume offerings (fixed number of minutes at a reasonable fee
per month), and low rates perminute.
Service quality: Lack of connection capabilities or quality in places where the customer requires service
can cause customers to abandon their current carrier in favor of one with broader reach or a more
robust network.
Fraud: Customers may attempt to game the system by generating high usage volumes and avoiding
payment by constantly churning to the next competitor.
Lack of carrier responsiveness: Slow or no response to customer complaints is a sure path to a customer
relations disaster. Broken promises, long hold times when the customer reports problems, and multiple
complaints related to the same issue are sure to lead to customer churn.
Lack of features: Customers may switch carriers for features not provided by their current carrier. This
might include the inability of a particular carrier to be the onestop shop for the entire customers
Communications needs.
New technology or product introduced by competitors: New technologies such as highspeed data or
bundled highvalue phone offerings like iPhone create significant opportunities for carriers to entice
competitors customers to switch.
Billing or service disputes: Billing errors, incorrectly applied payments, and disputes about service
disruptions can cause customers to switch carriers. Depending on the situations, such churn may be
avoidable.
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COGS (Cost of Goods Sold) direct costs attributable to the production of products or services sold by a
company. It includes cost of materials and labor used in creation, as well as indirect expenses such as
distribution costs and sales force costs. For example, the COGS for a PC maker would include the
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material costs for the parts that go into making the PC along with the labor costs used to put the
computer together. The cost of sending the computer to sellers like Bestbuy and the cost of the labor
used to sell them would be excluded. The exact costs included in the COGS calculation will differ from
one type of business to another. The cost of goods attributed to a companys products is expensed as
the company sells these goods. There are several ways to calculate COGS but one of the more basic
ways is to start with the beginning inventory for the period and add the total amount of purchases made
during the period then deducting the ending inventory. This calculation gives the total amount of
inventory or, more specifically, the cost of this inventory, sold by the company during the period.
_____________________________________________________________________________________
Competitive Advantage A competitive advantage is an advantage over competitors gained by offering
consumers greater value, either by means of lower prices or by providing greater benefits and service
that justifies higher prices. In other words it is a position of a company in a competitive landscape thatallows them to earn return on investments higher than the cost of investments.
Differentiation Strategy: This strategy involves selecting one or more criteria used by buyers in a market
and then positioning the business uniquely to meet those criteria. This strategy is usually associated
with charging a premium price for the product often to reflect the higher production costs and extra
valueadded features provided for the consumer. Differentiation is about charging a premium price that
more than covers the additional production costs, and about giving customers clear reasons to prefer
the product over other, less differentiated products. eg. Porsche
Cost Leadership Strategy: With this strategy, the objective is to become the lowestcost producer in the
industry. Many (perhaps all) market segments in the industry are supplied with the emphasis placed
minimizing costs. If the achieved selling price can at least equal (or near) the average for the market,
then the lowestcost producer will (in theory) enjoy the best profits. This strategy is usually associated
with largescale businesses offering "standard" products with relatively little differentiation that are
perfectly acceptable to the majority of customers. Occasionally, a lowcost leader will also discount its
product to maximize sales, particularly if it has a significant cost advantage over the competition and, in
doing so, it can further increase its market share. eg. WalMart, Dell Computers
Differentiation Focus Strategy: In the differentiation focus strategy, a business aims to differentiate
within just one or a small number of target market segments. The special customer needs of the
segment mean that there are opportunities to provide products that are clearly different from
competitors who may be targeting a broader group of customers. The important issue for any business
adopting this strategy is to ensure that customers really do have different needs and wants in other
words that there is a valid basis for differentiation and that existing competitor products are not
meeting those needs and wants. eg. Perfumania, All things remembered
Cost Focus Strategy: Here a business seeks a lowercost advantage in just one or a small number of
market segments. The product will be basic perhaps a similar product to the higherpriced and
featured market leader, but acceptable to sufficient consumers. Such products are often called "me
too's". eg. Many smaller retailers featuring ownlabel or discounted label products.
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Contra Account account on a financial statement (balance sheet and P&L) that offsets the activity of a
related and corresponding account. When it comes to an example of how one account offsets another
account, perhaps the easiest illustration would be to take an account that records accumulated
amortization into account. In order to balance the debit position associated with the amortization, an
opposite or contra account with the balance sheet structure will represent a credit that essentially
offsets the amortized figure. This helps to maintain a balance between debits and credits in the
bookkeeping process.
However, it must be understood that the concept of the contra account does not always involve a credit
offsetting a debit. The basic function of a contra account is simply to be an opposite of another account.
This means that an account showing a debit would be a type of contra account usually known as a
contraliability account. By the same token, an account with a credit would be balanced by a contraasset account.
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Core accounts and services for customers with good credit who are billed after services are received.
_____________________________________________________________________________________
Cost-Benefit Analysis economic tool that weighs the total expected costs against the total expected
benefits of one or more actions in order to choose the best or most profitable option.
Cost Benefit Analysis is an economic tool to aid decisionmaking, and is typically used by organizations to
evaluate the desirability of a given intervention in markets. Costbenefit analysis is mostly, but not
exclusively, used to assess the value for money of very large private and public sector projects. This is
because such projects tend to include costs and benefits that are less amenable to being expressed in
financial or monetary terms (e.g. environmental damage), as well as those that can be expressed in
monetary terms. Private sector organizations tend to make much more use of other project appraisal
techniques, such as rate of return, where feasible.
The practice of costbenefit analysis differs between countries and between sectors (e.g. transport,
health) within countries. Some of the main differences include the types of impacts that are included as
costs and benefits within appraisals, the extent to which impacts are expressed in monetary terms and
differences in discount rate between countries.
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Covered POP - Population covered by a wireless networks coverage footprint.
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CPGA - Cost Per Gross Add. A ratio used to quantify the costs of acquiring one new customer to a
business. Often, the CPGA ratio is used by companies that offer subscription services to clients, such as
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wireless companies and satellite radio companies.
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Customer Lifetime Value (CLV) a financial concept that represents how much each customer is worth
in dollar terms, and therefore exactly how much a company should spend to acquire and keep each
customer. CLV is calculated using a model and inputting various estimates and simplifying assumptions.
In reality, there are several variations of CLV available due to the complexity and uncertainty of
customer behavior.
In wireless, CLV can also be:
CLV = ((ARPU Variable CCPU) x Tenure) (SAC + Capacity Charge)
CLV in wireless:
CLV (customer lifetime value) calculation process consists of four steps:
Forecasting of remaining customer lifetime in years
Forecasting of future revenues year-by-year, based on estimation about future products purchased
and price paid
Estimation of costs for delivering those products
Calculation of the net present value of these future amounts
Forecasting accuracy and difficulty in tracking customers over time may affect CLV calculation
process
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DARPU Data Average Revenue per User. Total Data Revenue divided by number of subscribers.
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DCF (Discounted Cash Flow) - method of valuing a project, company, or asset using Time Value of
Money. All future cash flows are estimated and discounted to give their Present Values (PVs). The sum
of all future cash flows, both incoming and outgoing, is the Net Present Value (NPV), which is taken as
the value of the cash flows.
Discounted cash flow (DCF) analysis uses future free cash flow projections and discounts them (most
often using the weighted average cost of capital) to arrive at a present value, which is used to evaluate
the potential for investment. If the value arrived at through DCF analysis is higher than the current cost
of the investment, the opportunity may be a good one.
Calculated as:
Also known as the Discounted Cash Flows Model. The purpose of DCF analysis is just to estimate the
money to be received from an investment and to adjust for the time value of money.
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Depreciation accounting method to attribute the cost of an asset over the assets useful life.
Amortization is the term usually used for depreciation of intangible assets. Depreciation is used in
accounting to try to match the expense of an asset to the income that the asset helps the company
earn. For example, if a company buys a piece of equipment for $10 million and expects it to have a
useful life of 10 years, it will be depreciated over 10 years. Every accounting year, the company will
expense $1000, 000 (assuming straightline depreciation), which will be matched with the money that
the equipment helps to make each year.
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Discount Rate used in financial calculations to bring the value of anticipated future cash flows to the
present. Often it is chosen to be equal to the cost of capital. Some adjustment may be made to thediscount rate to take account the risks associated with uncertain cash flows.
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Disruptive App Anapp which takes away potential revenue from its carrier. For example, Skype may
lower a carriers airtime and/or long distance revenue even though its bandwidth costs the carrier more
in capacity charges/opportunity costs.
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Disruptive Technology innovations that improve a product or service in ways that the market does not
3expect, typically by lowering price or designing for a different set of consumers. Example WiMAX which
accelerated the development of 3GPPLTE.
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Earnings Per Share (EPS) Earnings returned on an initial investment amount. The portion of a
company's profit allocated to each outstanding share of common stock. Earnings per share serve as an
indicator of a company's profitability.
Calculated as:
When calculating, it is more accurate to use a weighted average number of shares outstanding over the
reporting term, because the number of shares outstanding can change over time. However, data
sources sometimes simplify the calculation by using the number of shares outstanding at the end of the
period. Diluted EPS expands on basic EPS by including the shares of convertibles or warrants outstanding
in the outstanding shares number.
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EBITDA Earnings before interest, taxes, depreciation and amortization. A metric that can be used to
evaluate a company's profitability. EBIT or DA independently can denote those components. Externally
reported as OIBDA (Operating Income before Depreciation and Amortization) with minor definitional
differences.
EBITDA is calculated by taking net income and adding interest, taxes, depreciation and amortization
expenses back to it. EBITDA is used to analyze a company's operating profitability before nonoperating
expenses (such as interest and "other" noncore expenses) and noncash charges (depreciation and
amortization). Factoring out interest, taxes, depreciation and amortization can make even completely
unprofitable firms appear to be fiscally healthy. A look back at the dotcoms provides countless examples
of firms that had no hope, no future and certainly no earnings, but became the darlings of the
investment world. The use of EBITDA as measure of financial health made these firms look attractive.
EBITDA numbers are easy to manipulate. If fraudulent accounting techniques are used to inflate
revenues and interest, taxes, depreciation and amortization are factored out of the equation, almost
any company will look great. EBITDA is a financial calculation that is NOT regulated by GAAP (Generally
Accepted Accounting Principles) and therefore can be manipulated to a company's own ends.
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EBITDA Margin EBITDA divided by Total Revenue. Conceptually, EBITDA Margin represents what
percentage is retained from the overall amount received. A measurement of a company's operating
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choice. Elasticity is also crucially important in any discussion of welfare distribution, in particular
consumer surplus, producer surplus, or government surplus.
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EOYEnd of Year. Sometimes referred to as EY.
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Equipment Installment Plan (EIP) Mobile Operator financing in lieu of subsidizing handsets. An iPhone
offered by an operator costs much less than buying from Apple without a data service.
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Family Branding marketing strategy that involves selling several related products under one brand
name. A family brand name is used for all products. By building customer trust and loyalty to the family
brand name, all products that use the brand can benefit.
Some good examples include brands in the food industry, including Kelloggs, Heinz and Del Monte. Of
course, the use of a family brand can also create problems if one of the products gets bad publicity or is
a failure in a market. This can damage the reputation of a whole range of brands.
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Financial Accounting Standards Board (FASB) It is a private, notforprofit organization whose primary
purpose is to develop generally accepted accounting principles (GAAP) within the United States in thepublic's interest. The Securities and Exchange Commission (SEC) designated the FASB as the organization
responsible for setting accounting standards for public companies in the U.S. It was created in 1973,
replacing the Committee on Accounting Procedure (CAP) and the Accounting Principles Board (APB) of
the American Institute of Certified Public Accountants (AICPA).
The FASB is not a governmental body and its mission is "to establish and improve standards of financial
accounting and reporting for the guidance and education of the public, including issuers, auditors, and
users of financial information." To achieve this, FASB has five goals:
Improve the usefulness of financial reporting by focusing on the primary characteristics of relevance
and reliability, and on the qualities of comparability and consistency.Keep standards current to reflect changes in methods of doing business and in the economy.
Consider promptly any significant areas of deficiency in financial reporting that might be improved
through standard setting.
Promote international convergence of accounting standards concurrent with improving the quality of
financial reporting.
Improve common understanding of the nature and purposes of information in financial reports.
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Fixed Cost business expense that is not dependent on the activities of the business. They tend to be
timerelated, such as salaries or rents. An example of a fixed cost would be a company's lease on a
building. If a company has to pay $12,000 each month to cover the cost of the lease but does not
manufacture anything during the month, the lease payment is still due in full.
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Flywheel additive effect of many small initiatives. The Flywheel concept is from Jim Collins Good to
Great. It is a concept that is based on concept to apply immense force to rotate the Flywheel and it
doesn't move but perseverance to move it inch by an inch still persists. While efforts continue to apply
force to it and finally the efforts pay off by making it complete a turn. Nobody notices but the person
who is turning the wheel knows what they are up to. They continue applying force in the same direction
until it attains a speed which people stop to notice. They believe that a massive restructuring program
must have gone under to bring it to such speed.
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Forecast (FC) detailed estimate of the expected financial position and results of operations and cash
flows based on expected conditions. Forecasts are made for all GL accounts in conjunction with the
budget, and updated monthly.
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Friends & Family Mobile Network Operators plan that gives customers unlimited calling to a select
group of numbers. They are popularly known as my circle or myfaves as branded by differentoperators.
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FTE FullTime Equivalent is a way to measure a worker's involvement in a project. An FTE of 1.0 means
that the person is equivalent to a fulltime worker at 40 hours per week, while an FTE of 0.5 signals that
the worker is only halftime at 20 hours per week.
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Future Value (FV) future sum of money that a given amount of money is worth at a specified time in
the future, assuming a certain interest rate or ROI.
FV=PV (1+i) n
Where,
FV Future value
PV Present Value
i Annual interest rate
There are two ways to calculate FV:
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For an asset with simple annual interest: = Original Investment x (1+(interest rate*number of years))
For an asset with interest compounded annually: = Original Investment x ((1+interest rate)^number
of years)
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GAAP Generally Accepted Accounting Principles. The common set of accounting principles, standards
and procedures that companies use to compile their financial statements. GAAP are a combination of
authoritative standards (set by policy boards) and simply the commonly accepted ways of recording and
reporting accounting information.
GAAP derives, in order of importance, from:
Issuances from an authoritative body designated by the American Institute of Certified Public
Accountants(AICPA) Council (for example, the Financial Accounting Standards Board Statements,AICPA Accounting Principles Board Opinions, and AICPA Accounting Research Bulletins);
AICPA issuances such as AICPA Industry Guides
Industry practice
Para-accounting literature in the form of books and articles.
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General Ledger (GL) Main accounting record of a business. It includes accounts for current assets,
fixed assets, liabilities, revenue and expense items, gains and losses. The general ledger is a summary of
all of the transactions that occur in the company. It is built up by posting transactions recorded in the
general journal. The two primary financial documents of any company are their balance sheet and the
profit and loss statement, and both of these are drawn directly from the companys general ledger. The
order of how the numerical balances appear is determined by the chart of accounts, but all entries that
are entered will appear. The general ledger accrues the balances that make up the line items on these
reports, and the changes are reflected in the profit and loss statement as well.
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Gross Adds (GA) new subscribers with a unique login ID and account combination or SIM card, a
"gross add" is the industry measure for acquiring a new customer by purchase of a plan and a phone.
The number of new subscribers, or gross adds, minus the number of customers that drop service orchurn.
Gross Adds = Beginning customers Churn + Net Adds
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Gross Margin difference between revenue and production costs, including overhead. Generally, it is
calculated as the selling price of an item, less the cost of goods sold (production or acquisition costs,
essentially).
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Gross margin = (Revenue - Cost of goods sold) / Revenue
Cost of sales (also known as cost of goods sold or COGS) includes variable costs and fixed costs directly
linked to the sale, such as material costs, labor, supplier profit, shippingin costs (cost of getting the
product to the point of sale, as opposed to shippingout costs which are not included in COGS), etc. It
does not include indirect fixed costs like office expenses, rent, administrative costs, etc.
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Halo Effect the first traits recognized influence interpretation and perception of later traits because of
expectation. The halo effect is very common among physically attractive individuals. Physically attractive
individuals are assumed to possess more socially desirable traits, live happier lives, and become more
successful than unattractive people. Edward Thorndike was the first to support the halo effect with
empirical research. Thorndikes main contribution to psychology was the creation of many theories toeducational psychology.
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Handset Seeding giveaways of handsets to developers with the expectation that they will develop
apps. For example concerned many of its developers aren't up to speed with Android 2.0, Google had
emailed studios informed them they could receive a free Motorola Droid or Nexus One handset
presently as part of the firm's Device Seeding Program. Mobile operators do the same by seeding the
market in expectation of launching a new technology, another example was seeding data capable
phones before data services were launched during GSM days.
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Hedgehog Concept a Venn diagram of three intersecting circles can be drawn for goodtogreat
companies that represent:
1. What they are deeply passionate about,2. What they can be the best in the world at3. What best drives the economic engine.
Under this concept, goodtogreat companies turn down opportunities that fail the Hedgehog test. The
Hedgehog concept is from Jim Collins Good to Great. Consistency is key in a business. Although it is
okay to change directions if the current plan is not working, this shouldn't be a common occurrence. The
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hedgehog concept shows many benefits for leaders who plan first, and then act. Consider how any
changes, no matter how small, might affect the company five or ten years from now; don't only
concentrate on the immediate benefits. Companies that have leaders following the hedgehog concept
will have a better chance of becoming great companies in the long run.
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HerfindahlHirschman Index Herfindahl Hirschman Index determines if a monopoly exists. The
calculation gives higher weight to larger firms but also allows firms outside of the top four largest to
factor into the equation. A similar index is the FourFirm Concentration Ratio, which only factors in the
four largest firms. The lower the Herfindahl Hirschman Index, the more spread out the market share
with many large firms. The higher the Herfindahl Hirschman, the more concentrated the market shares
with only a couple of large firms.
Formula:
HHI = Xi, i from 1 to n
Xi is the percent market share of firm i x 100
n is the number of firms (or 50 if more than that)
HerfindahlHirschman Index will vary with changes in market share among bigger business firms. A
market characterized by monopoly will have higher HHI. For example, if a single company dominates
(100 percent market share) then index will equal 10,000exhibiting a monopoly. In a competitive
market, with thousands of business firms competing for customers, HHI would be near zeroindicatingperfect competition. Governments worldwide use HerfindahlHirschman Index for assessing mergers. A
competitive marketplace is considered to be one with HHI lower than 1,000. On other hand, a market
with HHI of 1,800 or more is considered as highly concentrated. A market at this level has potent anti
trust concerns. Antitrust concerns are also raised when a transaction may increase market HHI by more
than 100 points.
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Horizontal Market market which meets a given need of a wide variety of industries, rather than a
specific one. The audience for horizontal markets shares characteristics across industries. Based on the
scope of horizontal markets, the marketing efforts that support them must reach this spectrum ofbuyers and prospective buyers. An Internet service provider (ISP), for example, may launch a horizontal
marketing effort to support the sale of Internet services to homeowners. This is a broad umbrella
consisting of all homeowners in a specific region. This category of homeowners represents a horizontal
market.
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IFRS International Financial Reporting Standards (comparable to GAAP). IFRS are considered a
"principles based" set of standards in that they establish broad rules as well as dictating specific
treatments and adopted by the International Accounting Standards Board (IASB).
International Financial Reporting Standards comprise:
International Financial Reporting Standards (IFRS)standards issued after 2001
International Accounting Standards (IAS)standards issued before 2001
Standing Interpretations Committee (SIC)issued before 2001
Conceptual Framework for the Preparation and Presentation of Financial Statements (2010)
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Incollects invoices sent to a carrier for calls by their subscribers that originated outside of the carriers
service area. Incollects sometimes called outroamers, are billing records that are received from othersystems for services provided to their customers that have used the services of other networks.
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Indirect Channels dealers and national retailers that sell any network operators products and
services. Indirect Channels are also known as Indirect Sales Channels or Retail Sales Partners. The
indirect channel is used by companies who do not sell their goods directly to consumers. Suppliers and
manufacturers typically use indirect channels because they exist early in the supply chain. Depending on
the industry and product, direct distribution channels have become more prevalent because of the
Internet.
Distributors, wholesalers and retailers are the primary indirect channels a company may use when
selling its products in the marketplace. Companies choose the indirect channel best suited for their
product to obtain the best market share; it also allows them to focus on producing their goods.
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Income Statement/Income Summary or Profit and Loss Statement (P&L) A financial statement for
companies that indicates how revenue is transformed into net income (the result after all revenues and
expenses have been accounted for). P&Ls can also be used to report on departments or business lines
within a company. These records provide information that shows the ability of a company to generate
profit by increasing revenue and reducing costs.
The format of the income statement or the profit and loss statement will vary according to the
complexity of the business activities. However, most companies will have the following elements in their
income statements:
Revenues and Gains
Revenues from primary activities
Revenues or income from secondary activities
Gains (e.g., gain on the sale of long-term assets, gain on lawsuits)
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Expenses and Losses
Expenses involved in primary activities
Expenses from secondary activitiesLosses (e.g., loss on the sale of long-term assets, loss on lawsuits)
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Innovators Dilemma management book by Clayton Christensen that describes how established
companies often overlook disruptive technologies. The book explains how established companies are
focused on improving a product/service for their most sophisticated customers, although this innovation
outpaces what most customers can absorb over time. Christensen describes two types of technologies:
sustaining technologies and disruptive technologies. Sustaining technologies are technologies that
improve product performance. These are technologies that most large companies are familiar with;
technologies that involve improving a product that has an established role in the market. Most large
companies are adept at turning sustaining technology challenges into achievements. Christensen claims
that large companies have problems dealing with disruptive technologies. Disruptive technologies are
"innovations that result in worse product performance, at least in the near term." They are generally
"cheaper, simpler, smaller, and, frequently, more convenient to use." Disruptive technologies occur less
frequently, but when they do, they can cause the failure of highly successful companies who are only
prepared for sustaining technologies.
Above graph shows, disruptive technologies cause problems because they do not initially satisfy the
demands of even the high end of the market. Because of that, large companies choose to overlook
disruptive technologies until they become more attractive profitwise. Disruptive technologies,
however, eventually surpass sustaining technologies in satisfying market demand with lower costs.
When this happens, large companies who did not invest in the disruptive technology sooner are left
behind. This, according to Christensen, is the "Innovator's Dilemma."
Solving the Innovator's dilemma lies in firms being able to identify, develop and successfully market
emerging, potentially disruptive technologies before they overtake the traditional sustaining technology.
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However, as described by the Innovators Dilemma, the value networks and organization structures of
these firms make it an arduous process to complete.
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Involuntary Churn percentage of customers whose service is terminated by the carrier for reasons
such as nonpayment of bill.
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JD Power Awards J.D. Power and Associates is a global marketing information services firm founded in
1968 by James David Power III. The firm conducts surveys of customer satisfaction, product quality, and
buyer behavior for industries ranging from cars to marketing and advertising firms. The firm is best
known for its customer satisfaction research on newcar quality and longterm dependability. Its service
offerings include industrywide syndicated studies, proprietary research, consulting, training, and
automotive forecasting.
J.D. Power and Associates' marketing research consists primarily of consumer surveys. The company
bears the cost of developing and administering specific surveys with sample sizes of between several
hundred and over 100,000.J.D. Power ratings are based on the survey responses of randomly selected
and/or specifically targeted consumers. J.D. Power relies on consumer reporting for study results as well
as inhouse vehicle testing for opinion based reviews in Blogs.
Although publicly known for the endorsement value of its product awards, J.D. Power obtains the
majority of its revenue from corporations that seek the data collected from J.D. Power surveys forinternal use. Companies which have used J.D. Power surveys range from automotive, cellphone, and
computer manufacturers to home builders and utility companies. To be able to use the J.D. Power logo
and to quote the survey results in advertising, companies must pay a licensing fee to J.D. Power. These
advertisement licensing fees, however, form a small part of J.D. Power's revenues.
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Journal Entry (JE) used in accounting to document a business transaction that increases funds in one
account and decreases them in another account without cash being received or a check being
processed.
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Key Performance Indicators (KPIs) Metrics (usually nonfinancial) to measure performance and help
an organization define and evaluate how successful it is, typically in terms of making progress towards
its longterm organizational goals. Key performance indicators define a set of values used to measure
against. These raw sets of values, which are fed to systems in charge of summarizing the information,
are called indicators. Quantitative indicators which can be presented as a number.
Practical indicators that interface with existing company processes.
Directional indicators specifying whether an organization is getting better or not.
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Actionable indicators are sufficiently in an organization's control to effect change.
Financial indicators used in performance measurement and when looking at an operating index.
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Keynesian perspective Keynesian principles is a school of macroeconomic thought based on the ideas
of 20thcentury English economist John Maynard Keynes. Keynesian economics argues that private
sector decisions sometimes lead to inefficient macroeconomic outcomes and, therefore, advocates
active policy responses by the public sector, including monetary policy actions by the central bank and
fiscal policy actions by the government to stabilize output over the business cycle. The theories forming
the basis of Keynesian economics were first presented in The General Theory of Employment, Interest
and Money, published in 1936. The interpretations of Keynes are contentious and several schools of
thought claim his legacy. According to Keynesian theory, some individuallyrational microeconomiclevel
actions if taken collectively by a large proportion of individuals and firms can lead to inefficientaggregate macroeconomic outcomes, wherein the economy operates below its potential output and
growth rate. Such a situation had previously been referred to by classical economists as a general glut.
There was disagreement among classical economists on whether a general glut was possible. Keynes
contended that a general glut would occur when aggregate demand for goods was insufficient, leading
to an economic downturn resulting in losses of potential output due to unnecessarily high
unemployment, which results from the defensive (or reactive) decisions of the producers. In such a
situation, government policies could be used to increase aggregate demand, thus increasing economic
activity and reducing unemployment and deflation.
Keynesian macroeconomics destroys the classical dichotomy by abandoning the assumption that wages
and prices adjust instantly to clear markets. This approach is motivated by the observation that many
nominal wages are fixed by longterm labor contracts and many product prices remain unchanged for
long periods of time. Once the inflexibility of wages and prices is admitted into a macroeconomic model,
the classical dichotomy and the irrelevance of money quickly disappear.
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Kondratiev cycles Kondratiev waves (also called supercycles, great surges, long waves, Kwaves or the
long economic cycle) are described as sinusoidallike cycles in the modern capitalist world economy.[1]
Averaging fifty and ranging from approximately forty to sixty years in length, the cycles consist of
alternating periods between high sectoral growth and periods of relatively slow growth. Unlike theshortterm business cycle, the long wave of this theory is not accepted by current mainstream
economics.
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Kondratiev identified four distinct phases the economy goes through. They are a period of inflationary
growth, followed by stagflation, then deflationary growth and finally depression. Some characteristics
are as follows:
Inflationary Growth (expansion): stable to slow rising prices, low commodity prices, low and stableinterest rates, rising stock prices. The period might also be characterized by strong and growing
corporate profits and technological innovations.
Stagflation (recession): rising prices, rising commodity prices, rising interest rates, stagnant to falling
stock prices. Stagnant profits, rising debt. This period usually sees a major war that contributes to the
commodity and price inflation, and to the rising debt and misdirects business resources.
Deflationary Growth (plateau): stable to falling prices, falling commodity prices, falling interest rates,
sharply rising stock prices, profit growth but probably not as good as in the inflationary growth phase.
Sharply rising debt. Possible period of considerable technological innovation. Excess debt contributes to
speculative bubbles.
Depression (depression): falling prices, rising commodity prices (particularly gold), stable interest rates,
falling stock prices, falling profits, debt collapse. As the stock market collapses numerous scandals will
emerge. A major war occurs that helps contribute to end of the depression phase and the start of the
new expansion period.
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Lag and accelerator models The accelerator effect in economics refers to a positive effect on private
fixed investment of the growth of the market economy (measured e.g. by a change in Gross National
Product). Rising GNP (an economic boom or prosperity) implies that businesses in general see rising
profits, increased sales and cash flow, and greater use of existing capacity. This usually implies that
profit expectations and business confidence rise, encouraging businesses to build more factories and
other buildings and to install more machinery. (This expenditure is called fixed investment.) This may
lead to further growth of the economy through the stimulation of consumer incomes and purchases,
i.e., via the multiplier effect.
The accelerator effect also goes the other way: falling GNP (a recession) hurts business profits, sales,
cash flow, use of capacity and expectations. This in turn discourages fixed investment, worsening a
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recession by the multiplier effect. The accelerator effect is shown in the simple accelerator model. This
model assumes that the stock of capital goods (K) is proportional to the level of production (Y):
K= kY
This implies that if k (the capitaloutput ratio) is constant, an increase in Y requires an increase in K. That
is, net investment, In equals:
In = kY
Suppose that k = 2 (usually, k is assumed to be in (0,1)). This equation implies that if Y rises by 10, then
net investment will equal 102 = 20, as suggested by the accelerator effect. If Y then rises by only 5, the
equation implies that the level of investment will be 52 = 10. This means that the simple accelerator
model implies that fixed investment will fall if the growth of production slows. An actual fall in
production is not needed to cause investment to fall. However, such a fall in output will result if slowing
growth of production causes investment to fall, since that reduces aggregate demand. Thus, the simpleaccelerator model implies an endogenous explanation of the businesscycle downturn, the transition to
a recession.
In statistics and econometrics, a distributed lag model is a model for time series data in which a
regression equation is used to predict current values of a dependent variable based on both the current
values of an explanatory variable and the lagged (past period) values of this explanatory variable.
The starting point for a distributed lag model is an assumed structure of the form
yt = a + w0xt + w1xt 1 + w2xt 2 + ... + error term
or the form
yt = a + w0xt + w1xt 1 + w2xt 2 + ... + wnxt n + error term,
Where yt is the value at time period t of the dependent variable y, a is the intercept term to be
estimated, and wiis called the lag weight (also to be estimated) placed on the value i periods previously
of the explanatory variable x. In the first equation, the dependent variable is assumed to be affected by
values of the independent variable arbitrarily far in the past, so the number of lag weights is infinite and
the model is called an infinite distributed lag model. In the alternative, second, equation, there are only
a finite number of lag weights, indicating an assumption that there is a maximum lag beyond which
values of the independent variable do not affect the dependent variable; a model based on thisassumption is called a finite distributed lag model.
In an infinite distributed lag model, an infinite number of lag weights need to be estimated; clearly this
can be done only if some structure is assumed for the relation between the various lag weights, with the
entire infinitude of them expressible in terms of a finite number of assumed underlying parameters. In a
finite distributed lag model, the parameters could be directly estimated by ordinary least squares
(assuming the number of data points sufficiently exceeds the number of lag weights); nevertheless, such
estimation may give very imprecise results due to extreme multicollinearity among the various lagged
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values of the independent variable, so again it may be necessary to assume some structure for the
relation between the various lag weights.
The concept of distributed lag models easily generalizes to the context of more than one rightside
explanatory variable.
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Lean Enterprise production practice that seeks to eliminate any action determined to be non value
add. Lean Enterprise is often known simply as Lean,
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Long Tail Small volumes of hardtofind items can be sold to many customers. The Long Tail
phenomenon was less common before Internet sales became common. The Long Tail or long tail refersto the statistical property that a larger share of population rests within the tail of a probability
distribution than observed under a 'normal' or Gaussian distribution. A long tail distortion will arise with
the inclusion of some unusually high (or low) values which increase (decrease) the mean, skewing the
distribution to the right (or left).
The term Long Tail has gained popularity in recent times as describing the retailing strategy of selling a
large number of unique items with relatively small quantities sold of each usually in addition to selling
fewer popular items in large quantities. The Long Tail was popularized by Chris Anderson in an October
2004 Wired magazine article, in which he mentioned Amazon.com and Netflix as examples of businesses
applying this strategy. Anderson elaborated the concept in his book The Long Tail: Why the Future ofBusiness Is Selling Less of More.
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Margin difference between the selling price of a product or service and the cost of producing it.
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M2M (Machine to Machine) technologies that allow both wireless and wired systems to communicate
with each other.
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Metcalfe effect Metcalfe's law states that the value of a telecommunications network is proportional
to the square of the number of connected users of the system (n2). First formulated in this form by
George Gilder in 1993, and attributed to Robert Metcalfe in regard to Ethernet, Metcalfe's law was
originally presented, circa 1980, not in terms of users, but rather of compatible communicating
devices (for example, faxes machines, telephones, etc.) Only more recently with the launch of the
internet did this law carry over to users and networks as its original intent was to describe Ethernet
purchases and connections. The law is also very much related to economics and business management,
especially with competitive companies looking to merge with one another.
Metcalfe's law characterizes many of the network effects of communication technologies and networkssuch as the Internet, social networking, and the World Wide Web. Metcalfe's Law is related to the fact
that the number of unique connections in a network of a number of nodes (n) can be expressed
mathematically as the triangular number n(n 1)/2, which is proportional to n2 asymptotically.
Websites and blogs such as Twitter, Facebook, and MySpace are the most prominent modern example
of Metcalfe's Law. Metcalfe's law is more of a heuristic or metaphor than an ironclad empirical rule. In
addition to the difficulty of quantifying the "value" of a network, the mathematical justification
measures only the potential number of contacts, i.e., the technological side of a network. However the
social utility of a network depends upon the number of nodes in contact. A good way to describe this is
"quality versus quantity."
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MMS (Multimedia Messaging Service) standard for sending multimedia content to and from mobile
phones. The most popular use is to send photographs from cameraequipped handsets.
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MOU Minutes of use and could include all allowance minutes available for calls that include any Night
& Weekend, Mobile to Mobile, Friends & Family or any other allowance.
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MRC Monthly Recurring Charge also called monthly access charge it is the set monthly cost of the plan
before additional monthly usage charges, taxes and operator surcharges.
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MVNO (Mobile Virtual Network Operator) A company that provides mobile phone service but does
not have its own network infrastructure, buys minutes wholesale from wireless companies with such
infrastructures, and retails them to its own customers. Examples are Virgin Mobile, WalMart.
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Net Adds Gross Adds minus deactivations. Incremental change in customer base over a period.
NetAdds = New Subscribers - Churn
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Net Income (NI) remaining income after adding revenue and gains and subtracting all expenses and
losses. If negative, Net Income is referred to as Net Loss.
Net Income = Net Revenue - Total Overall Expenses
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Net Income Margin (NI Margin/NIM) Net Income divided by Revenue.
Net Income Margin = Net Income/Revenue
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Net Present Value (NPV) The difference between the present value of cash inflows and the present
value of cash outflows. NPV is used in capital budgeting to analyze the profitability of an investment or
project.
NPV analysis is sensitive to the reliability of future cash inflows that an investment or project will yield.
Formula:
NPV compares the value of a dollar today to the value of that same dollar in the future, taking inflation
and returns into account. If the NPV of a prospective project is positive, it should be accepted. However,
if NPV is negative, the project should probably be rejected because cash flows will also be negative.
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Net Promoter Score (NPS) Net Promoter is a customer loyalty metric developed by (and a registered
trademark of) Fred Reichheld, Bain & Company, and Satmetrix. It is a market research tool that uses asingle question: How likely is it that you would recommend your current provider to a friend or
colleague? Customers respond on a 0to10 point rat