Agricultural Producer Price Indices
The FAO Agricultural Producer Price Indices measure annual changes in the selling prices received by farmers (prices at the farm-gate or at the first point of sale). The indices are constructed using price data in Standardised Local Currency (SLC).
There are two categories of producer price indices available for each country in FAOSTAT:
The main source of data for producer prices and production is the data reported by countries to FAO. In some cases, in-house estimations are needed to fill in data gaps. This data is available in FAOSTAT in the Prices and Production data domains.
Coverage of countries:
The indices are available for all countries for which both price and production data are disseminated in FAOSTAT.
The base period of the indices are 2004-2006. The weight used for the aggregate indices (Agriculture Producer Price Index and commodity group indices) is the average production value for the years 2004, 2005 and 2006.
The indices are available from 1999 to the latest year of data availability.
The Agriculture Producer Price Index and the commodity group indices are calculated using the Laspeyres formula. The index for a given commodity group and year is therefore equal to the value of production at current year prices of the items belonging to the same commodity group, divided by the value at base period prices of the same commodity basket. Formally:
A is a group of commodities
pit is the price of item i in period t
pi0 is the average price of item i in base period (2004-2006)
qi0 is the average quantity of item i produced in base period (2004-2006)
The individual item indices are calculated by dividing the SLC price in a given year by the SLC price in the base year:
Monthly commodities prices and indices [The World Bank], http://data.worldbank.org/data-catalog/commodity-price-data
Statistics on retail prices and indices [International Labour Organization], http://laborsta.ilo.org/data_topic_E.html
Primary Commodity Prices and Price Indices [IMF], http://www.imf.org/external/np/res/commod/index.asp
The Monthly Bulletin of Statistics [United Nations], http://unstats.un.org/unsd/mbs/app/DataSearchTable.aspx
FAO Food Price Index [FAO], http://www.fao.org/worldfoodsituation/wfs-home/en/
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