Description of methods and sources for Albania - INSTAT

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IPA 2009 Multi-beneficiary StatisticalCooperation Programme11.3.6 Relative Price CalculationThe relative prices are directly used in the index calculation.The relative prices are calculated by the expert of the statistical office of the district.In order to calculate the relative price for the items, the prices in the current trimesterare divided with the prices of previous trimester.The relative price should be rounded to four decimal places.11.3.7 Calculation of CCIThe formula used to calculate the CCI derives from the classical Laspeyres indexformula:I(t) = Sum [P(i,t)*Q(i,o)] / Sum[P(i,o)*Q(i,o)]Where:I(t) is the price index between the current period t and the base period 0.P(i,t) is the price of item i in the period tQ(i,o) is the quantity of item i in the period 0The Microsoft Excel file is used for calculation of the CCI11.3.8 Imputation of the missing pricesThe relative prices for the items that could not be priced are imputed every month byusing the average relative price of the groups.11.3.9 PublicationThe CCI is published on 23 rd of each quarter for the previous quarter.The following publications include CCI and are regularly published. Quarterly publication “Consumer Price Index Quarterly bulletin “Statistics” “Statistical Yearbook”with the monthly publications, the CPI is also published in the website of INSTAT,www.instat.gov.al., at the 23 rd of each quarter.11.4 Unit Value index11.4.1 PurposeExternal trade unit value indices measure the dynamics of the price of imports andexports.144/236
IPA 2009 Multi-beneficiary StatisticalCooperation Programme11.4.2 Source of dataThe only source of data for external trade unit value index calculation is data fromcustoms statements.11.4.3 Method of data collectionINSTAT receives the data from the customs statements on a monthly basis from theCustoms Administration.For external trade unit value index calculation only data on the statistical value ofexported and imported goods in LEK, data on quantity in supplementary unit at themost disaggregated level of the Combined Nomenclature are used.11.4.4 CoverageThe calculation of external trade unit value indices includes all customs statementscovered by external trade statistics according to the special trade system. Exports andimports of goods for which the variability of unit values in the base year, measured withthe coefficient of variation, exceeded the predefined limit, are excluded from thecovered current and base period.11.4.5 Definitions and the compilation methodThe unit value is the average value (not the price of a determined product) perquantity in supplementary unit of all products classified under the same eight-digitcode of the Combined Nomenclature. The selection of appropriate quantity (quantityin supplementary unit) used in the calculation of the unit value of the individualproduct depends on the coefficients of variation (the coefficient of variation for theunit value calculated by using data on quantity in supplementary unit) and thenumber of quarters with positive value of this product for the base year. In caseswhen not only one product but more products of various kinds or various quality areclassified under the same eight-digit code of the Combined Nomenclature, therelative change of the unit value can reflect the change of price as well as the changeof composition or quality of goods. Nevertheless, the aggregated external trade unitvalue indices, calculated for larger groups of goods, are approximate for monitoringprice developments in external trade and as deflators.In calculating external trade unit value indices statistical values of goods in LEK aretaken into account. The statistical value of goods is the value of goods on theAlbanian border (insurance and freight costs are added to or subtracted from thetransaction value depending on delivery terms). External trade unit value indices arecalculated as chain indices by the Paasche (I P ) formulas.The formula for calculation is:I PP1V10V1P:145/236
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Description of methods and sources for Albania - INSTAT

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