Description of methods and sources for Albania - INSTAT

IPA 2009 Multi-beneficiary StatisticalCooperation Programmeproducts is the value of their sale, which accounts for more than 10 percent of thetotal sales of the enterprise. In the cases when the enterprises have a considerablenumber of products, the highest sale value is used as the selection criteria. Thisselected product represents the entire relevant group. The base year used for thesecalculations is 1998. The figures about the sales represent the first type of theweights used for the PPI calculation. These weights used for the aggregation of theelementary indexes of the products at the four-digit NEA level and at the eight-digitlevel according to the Product Classification.The PPI calculation on the basis of the economic activity is made by using anothertype of weights, which represent the total sales at a four-digit NEA level. The sourceof the data for the calculation of these weights is the results of the 1998 ASS.It is important to stress out that these weights were not the sum of the individualweights for the products and enterprises included in the PPI sample; rather, they werethe total prices for the whole four-digit industry, including the sales of the enterprisesthat were not selected in the PPI enterprise sample.The second revision of PPI was in 2007. The previous index was a “fix base index”(further reading chapter 15 F in PPI-manual), and the weights for sections / chapters /transactions were fixed over time (set when compiling the base year). Theimplication of this is that the weights will not correspond to the current situation,rather to that situation that was present when compiling index numbers for the baseyear. A lot of products or product groups that were popular in 1999 disappeared andsome new ones are more popular today. Another drawback was that item substitutionbecomes hard to manage at practical level. So, in 2007 Sweden experts suggested tochange the method of calculation in order to be more realistic and more compatiblewith the EU requirements. The new method is the “chain – index”. The base periodof index is 2005 = 100.11.1.3 Classification and data publicationOutput prices of the manufactured goods are collected according to the Classificationof Products by Activities (CPA)11.1.4 Data collectionPrices which are the basis for calculating output price indices are collected with thequarterly survey of producer price. This survey collects information for: Output Prices of Manufactured Goods of the Domestic Market with which wemonitor output prices on the domestic market Output Prices of Manufactured Goods of the Non-Domestic Market with whichwe monitor output prices on the non-domestic market.Output prices of manufactured goods are collected on monthly basis withquestionnaires sent to selected enterprises from the fields of manufacturing, miningand quarrying, energy and water supply. Each questionnaire is individually preparedfor the enterprises. The questionnaires include only the representative productsselected by enterprises. Each representative product has a six-digit code from the134/236