Definition: Producer Price Index of agricultural products is computed for monitoring the proportional monthly changes of agricultural products produced and sold by farmers at the first point of sale through time.
Classifications: NACE Rev.2 and CPA- 2008 are used for computations.
A. Agriculture, forestry and fishing,
01. Crop and animal production, hunting and related service activities
02. Forest products and realated services
03. Fishing and other fishing products
International and regional directive: Computations are made considering Europen Union methodologies and national needs.
Production coverage: Products having significant importance in total agricultural production value are covered in Agriculture PPI.
Sectoral coverage: Agriculture and hunting products and services, forest products and services, fishery and other fishery products; aquaculture products; support services for fishery
Price coverage: Selling prices of farmers to the marketing channels in each month between 1-31 days. Producer price is the selling price of domestically produced goods excluded value added tax and other taxes. Selling prices of products produced by the producer active in agriculture, hunting, forestry and fishery sectors and supplied to the market at the first point of sale are monitored in agriculture producer price index.
Geographical coverage: Turkey
Sources of Weight: Weights of 2 digit groups in NACE Rev.2 obtained from National Accounts system. Production quantity, price and production value of 2009, 2010 and 2011 are used for computing weights of products and product groups in Agriculture PPI. 2009, 2010 and 2011 production value and prices of all crop and animal products and livestock are used at district level. As well as Ministry of Forestry and Water Affairs, Commercial Exchange Markets, Cooperatives, Marketing Hall and Foundation of Fishery, Directorate of Fresh Vegetables and Fruits Marketplace, 2001 marketing ratios are used.
Current weight period: January 2009 - December 2011 (average of 2009, 2010 and 2011).
Reference period: 2010=100
Frequency of weight updating: Years ending with zero (0) and five (5) (every five years).
Seasonal adjustment: No.
Index formula: Laspeyres
Laspeyress index Formula with fixed weight is used to calculate Agriculture PPI at national level.
Sub indicators symbolyzing time values of variables can be explained as follows:
t = current year o = base year Iti= Pti / Pto *100
Data sources: Data of farmers through Province and District Directorates of Ministry of Food Agriculture and Livestock, Commercial Exchange Markets, Cooperatives, Marketing Hall and Cooperatives of Fish, Ministry of Forestry and Water Affairs, Turkish Grain Board, General Directorate of Tea Authority, Tobacco and Alcohol Market Regularity Authority and Sugar Authority.
Prices are compiled from surveys and administrative registers.
For products involved by 01, weekly prices fort the period 1-31 of every month and for products involved by 02 and 03 monthly average prices obtained from daily records for period 1-31of every month are compiled in Agriculture PPI.
Results of Agriculture PPI are announced to the public on the 14th day or consequent working day of the month at 10:00 by press release.
Simultaneous press dissemination to the interested parties: The data are disseminated simultaneously to the all interested parties through a database and press release.
Period, circumstances and confidentiality of production of official statistics: Dissemination and evaluation of all statistics by Turkish Statistical Institute (TurkStat) is enacted by Turkish statistical Law No:5429. According to this law, data are compiled and collected only for statistical purpose and confidentiality is provided.
Accessing data by other parties: It is impossible to access the data before dissemination of the public.
Renewal policy and changes in methodology: Changes in methodolgy and updated index are announced to the public.
Definition: PPI index is computed to measure the changes through time in the prices of agricultural products, which farmers produce and sale, at the first point of sale. Classifications: NACE Rev.1.1 and CPA- 2002 are used for calculations.International and regional directive: There is no significant difference between Turkey methodology and Eurostat and related international and regional standards.
2003=100 PPI Agricultural Index, for Turkey general index includes sectors of Agriculture, Hunting and related service products (01), Forestry, logging and related service products (02) and Fish and other fishery products (05), Regional PPI Agricultural Index, according to NUTS 1 for 12 region, covers only the sector of Hunting and related service products (01). Sources of Weight: For the calculation of weights in PPI Agricultural Index, Agricultural Structure 2002 and 2003 (Production, Price, Value) publication, in detail of distinct 2002 and 2003 production quantity for all crop products, 2003 Livestock quantity and animal products production quantity, Ministry of Forestry and Water Affairs, Commercial Exchange Markets, Marketing Hall and Foundation of Fishery, Directorate of Fresh Vegetables And Fruits Marketplace 2001 marketing ratios of products are also used. Laspeyres type formula with chain index has been used since January 2006 so the weights are revised every year.Current weight period: January 2003 - December 2004 (1/2 ratio from year 2002, 1/2 ratio from year 2003).Geographical coverage: Turkey.Price Coverage: Selling prices of farmers to the marketing channels in each month between 1-25 days.
Formulation of Laspeyres was used for the calculation of PPI for Turkey and regions depending upon variables which are given below.Variables which are used for calculation of PPI for Agriculture: I = index
p = price
q = quantity
w = weight i = item
l = item subgroup
k = subgroup (4 digit)
m = main group (3 digit)
r = sub sector (2 digit)
a = main sector (1 digit) g = general
Sub indicators which represent time values of variables:
t = current year
o = base year
Data Sources: Data is compiled monthly from, Ministry of Food Agriculture and Livestock, Province and district Directorates, Commodity Exchanges, Marketing Hall and Cooperatives of Fish , Turkish Grain Board (TMO), Unions and Foundations, Ministry of Forestry and Water Affairs, General Directorate of Tea Authority, Sugar Authority.
Data Compiling System: Data Processing: PPI dates are processed only by the Turkish Statistical Institute.Access by the Public: Results of the PPI are announced to the public in the 3rd working day of the month at 10:00 with a news bulletin.
Seasonal adjustment: Data are not seasonally adjusted.Geographic detail: National Level