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Published online by Cambridge University Press: 01 March 1998
We introduce a frequency-domain test of time reversibility, theREVERSE test. It is based on the bispectrum. We analyticallyestablish the asymptotic distribution of the test and also exploreits finite-sample properties through Monte-Carlo simulation.Following other researchers who demonstrated that the problem ofbusiness-cycle asymmetry can be stated as whether macroeconomicfluctuations are time irreversible, we use the REVERSE test as afrequency-domain test of business-cycle asymmetry. Our empiricalresults show that time irreversibility is the rule rather than theexception for a representative set of macroeconomic time series forfive OECD countries.