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Indirektno vs direktno desezoniranje aregatnih vremenskih nizova

Ivan Šošić (), Vlasta Bahovec (), Mirjana Čižmešija and Nataša Kurnoga Živadinović ()
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Ivan Šošić: Faculty of Economics and Business, University of Zagreb
Vlasta Bahovec: Faculty of Economics and Business, University of Zagreb
Nataša Kurnoga Živadinović: Faculty of Economics and Business, University of Zagreb

No 611, EFZG Working Papers Series from Faculty of Economics and Business, University of Zagreb

Abstract: There are two approaches to seasonal adjustment of an aggregate time series: direct and indirect one. Direct seasonal adjustment is obtained by applying the seasonal adjustment to the aggregate series while indirect adjustment is aggregation of seasonally adjusted sub-components. Except under very restrictive conditions, these two approaches usually produce different results. In this paper some of aggregate economic time series of the Croatian Central Bureau of Statistics were directly and indirectly seasonally adjusted using TRAMO/SEATS, X-12-ARIMA and DAINTIES. The aim of this paper is to investigate differences between growth rates in the direct and indirect adjusted series. Growth rates are of the most important pieces of information in the analysis of economic activity. It can be concluded that the indirect approach should be preferred, especially if components of aggregate series do not have similar seasonal properties.

Keywords: agregatni vremenski nizovi; metode desezoniranja; indirektno i direktno desezoniranje; potpora X-12-ARIMA; TRAMO/SEATS; DAINTES (search for similar items in EconPapers)
JEL-codes: C22 C82 C88 (search for similar items in EconPapers)
Pages: 16
Date: 2006-11-30
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