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Cointegration applied to purchasing‐power analysis of mean Ukrainian total wages
Author(s) -
Bardadym Tamara,
Emmenegger JeanFrançois
Publication year - 2007
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200700597
Subject(s) - cointegration , purchasing power , unit root , economics , econometrics , ukrainian , price index , purchasing , purchasing power parity , time series , series (stratigraphy) , statistics , mathematics , macroeconomics , operations management , paleontology , linguistics , philosophy , biology , exchange rate
The main purpose of this study is to propose Johansen's [6] methodology of linear cointegration analysis as a tool to measure the purchasing power of the Ukrainian mean total wages (MTW) within the period of November 1993 to December 2004 expressed in terms of prices of some basic food products or of the Consumer Price Index (CPI). Nineteen monthly price time series of basic food products , the CPI and MTW published by the State Committee of Statistics of Ukraine (Derzhkomstat) have been selected. Preliminary studies of stationarity are undertaken to establish their degree of integratedness with a battery of adequate unit root tests. A cointegration analysis of couples of one of these price time series of some basic food products , respectively the CPI and the MTW time series are realised, yielding linear functions between both selected series, establishing tentative long‐run equilibrium relations for subperiods shorter than the interval 1993 to 2004. The results show that the purchasing power of the MTW, expressed in terms of the prices of some basic food products , respectively the CPI, gradually increased from 1993 to 2004. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)