chapter 7 estimating potentials and forecasting sales
TRANSCRIPT
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CHAPTER 7CHAPTER 7
Estimating Potentials and Estimating Potentials and Forecasting SalesForecasting Sales
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FORECASTFORECAST
A forecast is a prediction of a A forecast is a prediction of a future statefuture state
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IMPORTANCE OF IMPORTANCE OF FORECASTSFORECASTS Determining sales force sizeDetermining sales force size Designing territoriesDesigning territories Establishing quotas and Establishing quotas and
budgetsbudgets Determining compensationDetermining compensation Evaluating performanceEvaluating performance
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MARKET POTENTIALMARKET POTENTIAL
Best possible level of industry Best possible level of industry sales for a product in a specific sales for a product in a specific market over a stated time market over a stated time periodperiod
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BUYING POWER INDEX BUYING POWER INDEX (BPI)(BPI) A composite measure of A composite measure of
regional buying powerregional buying power Composed of area’s Composed of area’s
percentage ofpercentage of– US disposable incomeUS disposable income– US retail salesUS retail sales– US population US population
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SALES POTENTIALSALES POTENTIAL
The best possible share of the The best possible share of the market potential that a firm market potential that a firm can achievecan achieve
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SALES FORECASTSALES FORECAST
Level of sales that a firm Level of sales that a firm expectsexpects to make to make
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FORECASTING FORECASTING METHODSMETHODS
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TOP-DOWN TOP-DOWN FORECASTINGFORECASTING Use annual Survey of Buying PowerUse annual Survey of Buying Power
((Sales and Marketing ManagementSales and Marketing Management)) Example- To get state-by-state Example- To get state-by-state
sales forecastsales forecast– 6% of U.S. retail sales come from New 6% of U.S. retail sales come from New
York York – Shoe mfg. takes U.S. sales forecast Shoe mfg. takes U.S. sales forecast
and multiplies by .06 for New York and multiplies by .06 for New York state forecaststate forecast
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DETERMINING MARKET DETERMINING MARKET AND SALES FORECASTSAND SALES FORECASTS Market factor methodsMarket factor methods Regression analysisRegression analysis Surveys of buyer intentionsSurveys of buyer intentions Test marketsTest markets Executive opinionExecutive opinion Delphi TechniqueDelphi Technique Sales Force CompositeSales Force Composite Projection of TrendsProjection of Trends Capacity Based ForecastsCapacity Based Forecasts
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MARKET FACTOR MARKET FACTOR METHODMETHOD Market factors are elements Market factors are elements
that cause demand for a that cause demand for a product or are related to the product or are related to the demand of the gooddemand of the good
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MARKET FACTOR MARKET FACTOR FORECASTING--FORECASTING--EXAMPLEEXAMPLEA manufacturer of baby playpens A manufacturer of baby playpens
estimated that the firm sold 16 estimated that the firm sold 16 playpens for every 1000 births. playpens for every 1000 births. Using births as a market factor, Using births as a market factor, compute a sales forecastcompute a sales forecast
Estimated births, 1999: 4,000,000Estimated births, 1999: 4,000,000 Rate of sales: 16 per Rate of sales: 16 per
1,0001,000 Sales forecast: 64,000Sales forecast: 64,000
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MARKET FACTOR--MARKET FACTOR--ADVANTAGESADVANTAGES High validityHigh validity SimplicitySimplicity InexpensiveInexpensive
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REGRESSION ANALYSISREGRESSION ANALYSIS
We predict how one variables We predict how one variables (sales) is affected by change in (sales) is affected by change in other variables (advertising other variables (advertising expenditures, number of sales expenditures, number of sales calls, etc.)calls, etc.)
Territory Sales = a + b1 (factor) + Territory Sales = a + b1 (factor) + b2 (factor) + b3 (factor)b2 (factor) + b3 (factor)
a = constant; b’s = regression a = constant; b’s = regression coefficientscoefficients
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REGRESSION ANALYSISREGRESSION ANALYSIS
Use of multiple factors Use of multiple factors provides a high degree of provides a high degree of reliabilityreliability
Many do not understand the Many do not understand the conceptconcept
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SURVEYS OF BUYERS SURVEYS OF BUYERS INTENTIONSINTENTIONS Contact customers and Contact customers and
question themquestion them High costHigh cost Time consumingTime consuming Socially acceptable answersSocially acceptable answers
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TEST MARKETSTEST MARKETS
AccurateAccurate Considerable time and effortConsiderable time and effort
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EXECUTIVE OPINIONEXECUTIVE OPINION
SimpleSimple QuickQuick UnscientificUnscientific Managers somewhat removed Managers somewhat removed
from marketfrom market
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DELPHI TECHNIQUEDELPHI TECHNIQUE
Consensus approachConsensus approach
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SALES FORCE SALES FORCE COMPOSITECOMPOSITE Ask the sales repsAsk the sales reps Sales people are poor Sales people are poor
forecastersforecasters
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PROJECTION OF PROJECTION OF TRENDSTRENDS Use sales data for the past 10 Use sales data for the past 10
yearsyears Exponential smoothingExponential smoothing
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PROJECTION OF PROJECTION OF TRENDSTRENDS Trend Component Trend Component
– General trend due to long-term General trend due to long-term factors (e.g., demographic population factors (e.g., demographic population shifts, lifestyle changes, technological shifts, lifestyle changes, technological advances etc.) advances etc.)
Cyclical Component Cyclical Component – Patterns lasting more than a year due Patterns lasting more than a year due
to cyclical changes in the economy to cyclical changes in the economy (e.g., recession, inflation) (e.g., recession, inflation)
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PROJECTION OF PROJECTION OF TRENDSTRENDS Seasonal Component Seasonal Component
– Trends within one-year period Trends within one-year period from seasonal change (e.g., lower from seasonal change (e.g., lower swimming pool sales in fall and swimming pool sales in fall and winter) winter)
Irregular Component (Residual) Irregular Component (Residual) – Random deviations due to Random deviations due to
unanticipated, nonrecurring unanticipated, nonrecurring factorsfactors
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CAPACITY BASED CAPACITY BASED FORECASTSFORECASTS Production capacity becomes Production capacity becomes
limitationlimitation
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GUIDELINES FOR GUIDELINES FOR FORECASTINGFORECASTING Minimize the number of market Minimize the number of market
factorsfactors Use logicUse logic Use more than one methodUse more than one method Recognize limitationsRecognize limitations Use max/min analysisUse max/min analysis Understand mathematics and Understand mathematics and
statisticsstatistics
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SALES QUOTASSALES QUOTAS
a performance goal assigned a performance goal assigned to a marketing unit for a to a marketing unit for a specific period of timespecific period of time
is related to the sales forecastis related to the sales forecast
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SALES QUOTAS--SALES QUOTAS--PURPOSESPURPOSES Furnish goals and incentivesFurnish goals and incentives Control activities of sales Control activities of sales
personnelpersonnel Evaluate productivityEvaluate productivity CompensationCompensation Control selling expensesControl selling expenses Evaluate sales contest resultsEvaluate sales contest results
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SALES QUOTAS--TYPESSALES QUOTAS--TYPES
Sales volumeSales volume Gross margin or net profitGross margin or net profit ExpenseExpense ActivityActivity CombinationCombination
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FROM THE TEXT...FROM THE TEXT...
Read all of Chapter 7 except:Read all of Chapter 7 except:– Chain Ratio Method (page 325)Chain Ratio Method (page 325)– SIC Method (pages 327 - 328)SIC Method (pages 327 - 328)– Scrappage Method (pages 328 - Scrappage Method (pages 328 -
329)329)– Naïve approach / MAPE (pages Naïve approach / MAPE (pages
335 -336)335 -336)