Trend and cyclical decoupling: new estimates based on spectral causality tests and wavelet correlations

Dilip Nachane and Amlendu Kumar Dubey

Applied Economics, 2013, vol. 45, issue 31, 4419-4428

Abstract: The issue of decoupling of emerging market economies (EMEs) (especially in the Asian region) from the developments in advanced economies has become a subject of lively debate in recent years. Basically, decoupling seems to comprise three sub-hypotheses: (i) growth spillovers from advanced countries to EMEs decreasing progressively in importance, (ii) business cycles in EMEs becoming less synchronized with those of the advanced world and (iii) strengthening of growth spillovers and cyclical synchronization among the EMEs as a group. The received literature fails to distinguish adequately between the trend and cyclical aspects of the decoupling relationship. We resort to two frequency domain methods (nonstationary spectral causality testing and wavelet correlations), which seem to offer a neat separation of trend and cyclical decoupling. Based on a sample of seven EMEs from the Asian region (including the two large EMEs -- China and India), we uncover strong evidence favouring both trend and cyclical decoupling .

Date: 2013
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DOI: 10.1080/00036846.2013.788781

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