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Description of methods and sources for Albania - INSTAT

Description of methods and sources for Albania - INSTAT

Description of methods and sources for Albania - INSTAT

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IPA 2009 Multi-beneficiary StatisticalCooperation ProgrammePopulation <strong>and</strong> sample sizeEnterprises with 1-4 employed are surveyed by sample survey (3 483 enterprises)Enterprises with 5 <strong>and</strong> more employed are surveyed exhaustively (6 104 enterprises)The sample includes 9 587 units or 11.6 percent <strong>of</strong> the sampling frame.The in<strong>for</strong>mation is collected by face to face interviews.Survey response rateThe survey response rate is 89 percent according to the number <strong>of</strong> units.Main features <strong>of</strong> survey methodologyThe Annual Structural Business Survey is part <strong>of</strong> the National Statistical Program.This statistical activity has begun in 1998 <strong>and</strong> aims to satisfy the dem<strong>and</strong>s <strong>for</strong> betterstatistical in<strong>for</strong>mation <strong>of</strong> the trade market. The objective <strong>of</strong> this survey is thecollection <strong>and</strong> processing <strong>of</strong> the in<strong>for</strong>mation from enterprises acting in the entireterritory <strong>of</strong> the country in Industry, Construction, Transport <strong>and</strong> Communication,Trade <strong>and</strong> some Service activities.The questionnaire used <strong>for</strong> data entry <strong>of</strong> enterprises is compiled in two parts:– the general part, with general data <strong>for</strong> all enterprises;– the specific part which contains specific features <strong>for</strong> each economic activityThe questionnaire is reviewed each year to improve the quality <strong>and</strong> quantity <strong>of</strong> data<strong>and</strong> to ensure a better implementation <strong>of</strong> Eurostat’s requirements.Each November users take general in<strong>for</strong>mation <strong>for</strong> main variables <strong>and</strong> eachDecember <strong>INSTAT</strong> releases the publication “Results <strong>of</strong> Structural Survey <strong>of</strong>Economic Enterprises”General data are also published in the Statistical Yearbook.Method used to impute <strong>for</strong> missing dataAll cases <strong>of</strong> non-contact; full refuse <strong>and</strong> partial refuse (<strong>for</strong> different tables <strong>and</strong>indicators) are considered as non- response or missing data.The partial non-response is treated by using direct <strong>methods</strong> or their combinationssuch as the study <strong>of</strong> time series data <strong>of</strong> enterprise <strong>and</strong> branch; data from balancesheetfile (pr<strong>of</strong>it <strong>and</strong> loss accounts); the in<strong>for</strong>mation from other files available in<strong>INSTAT</strong> such as business register, VAT file, file <strong>of</strong> production price index, averagedata <strong>of</strong> branch where the enterprise is included, are analyzed <strong>and</strong> used; data fromenterprises that have similar conditions are used <strong>and</strong> method <strong>of</strong> average structure,especially <strong>for</strong> expenditures is usedImputation is done to cover the non-response <strong>of</strong> large enterprises. It is based on three<strong>methods</strong>: historical trend imputation <strong>for</strong> units with data from previous year in pr<strong>of</strong>it<strong>and</strong> loss account or in business register or in other surveys conducted by <strong>INSTAT</strong>;189/236

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