Testing European Business cycles asymmetry

One of business cycles stylised facts is that contractions are shorter than expansions, but less persistent, more volatile and therefore asymmetric. Investigating existence and type of business cycles asymmetry is important for analysis of economic policy and statistical modeling. Economic implication of business cycles asymmetry is that economic policy should be different in period of contractions than expansion. Statistical implication is that linear models of business cycles cannot capture this stylised fact. The article has two objectives: extend the literature on the business cycles asymmetry by testing data from 36 European countries including countries never been analysed before and test robustness of the results to extraction methods and asymmetry tests used. Quarterly GDP series from Eurostat database covering period 2000q1-2016q3 were used. Series were prepared by removing seasonal component using X13-ARIMA procedure. To assess robustness of asymmetry tests results to alternative methods of detrending business cycles were extracted using two filters: Corbae-Ouliaris ideal band filter and double Hodrick-Prescott filter. For testing the deepness and steepness asymmetry three tests were used: Mills, Mira and Sichel tests. Weaker evidence of deepness asymmetry was found in Cyprus, Montenegro and Turkey cycles where all three tests statistics for both filters have negative sign. However, only for one of the tests in each country the result was statistically significant. For two other countries, Germany and Sweden, four of six tests indicated deepness asymmetry, but only one of these tests results was statistically significant. Most of the cycles show steepness asymmetry, with exception of Ireland business cycles and to certain extent cycles of Poland, Malta, Montenegro and Spain.