Sample size for the estimate of consumer price subindices with alternative statistical designs

Carlo De Gregorio ()
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Carlo De Gregorio: Italian National Institute of Statistics

Rivista di statistica ufficiale, 2012, vol. 14, issue 1, 19-47

Abstract: This paper analyses the sample sizes needed to estimate Laspeyres consumer price subindices under a combination of alternative sample designs, aggregation methods and temporal targets. In a simplified consumer market, the definition of the statistical target has been founded on the methodological framework adopted for the Harmonized Index of Consumer Prices. For a given precision level, sample size needs have been simulated under simple and stratified random designs with three distinct approaches to elementary aggregation, founded on Carli, Jevons and Dutot formulae. Alternative temporal targets are also examined: the single monthly target, the whole sets of monthly and quarterly indices, the annual average and the annual link. Empirical evidence is finally provided, based on the elaboration of survey microdata referred to elementary aggregates - such as air transport and package holidays - characterized by high volatility within and between months.

Keywords: chained index; aggregation; sample size; sampling variance; air transports; package holidays (search for similar items in EconPapers)
JEL-codes: E31 (search for similar items in EconPapers)
Date: 2012
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Citations: View citations in EconPapers (1)

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