retail sales volume index

Regional Seminar on Developing a Program for the Implementation of the 2008 SNA and

Supporting Statistics

Ebru ŞEN

11-13 September 2013 Ankara - Turkey

Retail Sales Volume IndexRetail Sales Volume Index

Regional Seminar on Developing A Program for the Implementation of the

2008 SNA and Supporting Statistics11-13 September 2013 / Ankara - Turkey

Retail Sales Volume Index

Retail Sales Volume Index is an index that measures sales of retail enterprisesof different types and sizes on a monthly basis.

In addition to measuring the development of Retail Trade sector the index is also considered as an indicator of consumer confidence and householddemand.

Retail Sales Volume Index is accepted as one of the most important indicatorsto monitor the economic condition.




Unit: Statistical unit of the survey is enterprise.

Classifications: The indices are calculated according to the NACE Rev. 2economic activity classification. The activities covered are as follows. Retail trade Food, drinks and tobacco Non-food (except automotive fuel) Computers, peripheral units and software, books, telecommunications equipment, etc. Audio and video equipment, hardware, paints and glass, electrical household appliances, furniture, etc.

Textiles, clothing and footwearPharmaceutical goods, medical and orthopaedic goods, cosmetic and toilet articlesVia mail orders and internet

Automotive fuel




Geographical coverage: Turkey

Economic activity coverage: The index covers the “Division 47 - Retail Trade(Except Motor Vehicles and Motorcycles)” of NACE Rev.2 activityclassification.

Data sources: Turkish Statistical Institute, “Monthly Retail Trade Survey” and“Consumer Price Index”

Method of weighting: Weights are obtained from the turnover of theenterprises classified in retail trade sector covered by Annual Industry andServices Statistics.




Sampling and full enumeration: The all enterprises with number employeesof 50 or more were taken into account. The enterprises with employees 0-4and 5-49 were selected by sampling.

Frequency and reference period: Monthly, calendar month

Index formula: Fixed base Laspeyres Index

Seasonal adjustment: Seasonal and calendar adjustment for Retail SalesVolume Index is made by indirect method.



Calculation of Retail Sales Volume Index

Indices measuring retail sales are produced as both value (current prices) andvolume (constant prices) terms. As volume measurement is adjusted fromprice effects, evaluated as Retail Sales Volume Index.

In calculation of Retail Sales Volume Index, Turnover Indices at current pricesare deflated by price relatives. For this purpose, CPI results produced at"Classification of Individual Consumption by Purpose (COICOP)“level are calculated according to NACE Rev.2 level. "Household BudgetSurvey" data is used for this transition.

As a result of deflating current price Turnover Index by price relatives at appropriate levels, Retail Sales Volume Index with constant prices is reached.



Trade and Services Trade and Services IndicesIndices



Indices calculated in Trade and Services Sectorsturnover employmenthours workedgross wages and salaries

Unit: Statistical unit of the survey is enterprise


Classifications: The indices are calculated according to the NACE Rev. 2 economic activity classification



Trade and Services Indices



The activities covered are as follows:

NACE Rev.2 Code/Description45 Wholesale and retail trade and repair of motor vehicles and motorcycles46 Wholesale trade, except of motor vehicles and motorcycles47 Retail trade, except of motor vehicles and motorcycles49 Land transport and transport via pipelines50 Water transport51 Air transport52 Warehousing and support activities for transportation53 Postal and courier activities55 Accommodation56 Food and beverage service activities58 Publishing activities59 Motion picture, video and television programme production, sound recording and music publishing activities60 Programming and broadcasting activities61 Telecommunications62 Computer programming, consultancy and related activities63 Information service activities69+702 Legal, accounting and management consultancy activities71 Architectural and engineering activities; technical testing and analysis73 Advertising and market research74 Other professional, scientific and technical activities78 Employment activities79 Travel agency, tour operator reservation service and related activities80 Security and investigation activities812 Cleaning activities82 Office administrative, office support and other business support activities



Data sources: Turkish Statistical Institute, “Quarterly Trade and Services Survey” and “Monthly Retail Trade Survey”

Method of weighting: Weights are obtained from the turnover, employment, hours worked and gross wages-salaries data of the enterprises classified in trade and services sectors covered by Annual Industry and Services Statistics.

Sampling and full enumeration: The all enterprises with number employees of 50 or more were taken into account. The enterprises with employees 0-4 and 5-49 were selected by sampling.




Reference period and periodicity: The reference period for the first quarter is 1 January – 31 March, for the second quarter 1 April – 30 June, for the third quarter 1 July – 30 September and for the fourth quarter 1 October – 31 December.

Index formula: Fixed base Laspeyres Index

Seasonal Adjustment: The indices are seasonally and calendar adjusted at Trade and Services total, letter and two digits level of NACE Rev.2 classification.


Construction Construction IndicesIndices





Indices calculated in Construction Sector

employmenthours workedgross wages and salariesturnoverproduction

Unit: Statistical unit of the survey is enterprise


Classifications: The indices are calculated according to the NACE Rev. 2 economic activity classification and Classification of Types of Construction (CC)

Construction Indices



The activities covered are as followsThe activities covered are as follows::

NACE Rev.2 Code/DescriptionFF Construction41 Construction of buildings412 Construction of residential and non-residential buildings42 Civil engineering421 Construction of roads and railways422 Construction of utility projects429 Construction of other civil engineering projects43 Specialised construction activities431 Demolition and site preparation432 Electrical, plumbing and other construction installation activities433 Building completion and finishing439 Other specialised construction activities

CC Code/Description1 Building2 Civil Engineering




Data sources: Turkish Statistical Institute, “Short Term Business Statistics Quarterly Construction Sector Questionaire”

Method of weighting: Weights are obtained from the turnover, employment, hours worked and gross wages-salaries data of the enterprises classified in construction sector covered by Annual Industry and Services Statistics and weights of production index are obtained from production data of construction sector gross domestic product.

Selection of Enterprises: Enterprises the main activity of those is construction and those have 20 and more employees are taken into account.




Reference period and periodicity: The reference period for the first quarter is 1 January – 31 March, for the second quarter 1 April – 30 June, for the third quarter 1 July – 30 September and for the fourth quarter 1 October – 31 December.

Type of Index: The fixed base year weighted Laspeyres Formula and Pairwise Method is used in calculation of the indices. Quarterly productivity corrected hours worked approach is used in production index calculation.

Seasonal Adjustment: The indices are seasonally and calendar adjusted at total level.




Building Permit StatisticsBuilding Permit Statistics



Building Permit Statistics

Data pertaining to building permit statistics are obtained from “Construction Permit”, “Occupancy Permit” forms compiled over National Address Data Base (NAD) by municipalities of provinces, districts, sub-districts and villages, Special provincal administrations out of municipalities, Industrial Zone district offices in the boundaries of industrial zones.




The data is entered by the authorized administrations on a web based computer software using NAD. With a regulation released by Ministry of Interior, it is forbidden to prepare forms without NAD system since 1 July 2007. At the beginning, TurkStat was responsible for preparation of the forms but at the end of 2009, the system is passed on Ministry of Interior General Directorate of Civil Registration and Nationality. After then TurkStat became a user of the system.




Construction permit: Construction Permit is a certificate which must be given by municipalities to be constructed in boundaries of municipalities, by industrial zone district offices in boundries of industrial zones, free trade zone offices in boundries of free trade zones and it must be given by governorships (Directories of Public Works and Settlement) if the construction is out of boundaries of municipalities before beginning to a construction according to Article 21 of Construction Law No.3194.




Occupancy permit: Occupancy Permit is a certificate which must be given by municipalities to be constructed in boundaries of municipalities, by industrial zone district offices in boundries of industrial zones, free trade zone offices in boundries of free trade zones and it must be given by governorships (Directories of Public Works and Settlement) if the construction is out of boundaries of municipalities before beginning to a construction according to Article 30 of Construction Law No.3194.




Classification of Types of Constructions (CC)

CC classification is used for Building Permit Statistics. In CC, constructions are divided into two categories which are buildings and civil engineering works.

Information collected in the scope of building permits include only buildings. Civil engineering works are not covered.




Data are taken monthly from General Directorate of Civil Registration and Nationality which has the responsibility of NAD and published quarterly as a Press Release and a Database.

Data is available in NUTS III level.

Future Plans



Sevices Statistics

It is planned to publish Building Permits monthly and as an index.

For construction production index, new methods are investigated and it is planned to publish monthly in the future.

retail sales volume index

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