What has caused global business cycle decoupling: Smaller shocks or reduced sensitivity?

Tino Berger and Julia Richter

No 300, University of Göttingen Working Papers in Economics from University of Goettingen, Department of Economics

Abstract: According to a growing body of empirical literature, global shocks have become less important for business cycles in industrialized countries and emerging market economies since the mid-1980s. In this paper, we analyze the question of what might have caused a decoupling from the global business cycle: the smaller size of the global shocks or a reduced sensitivity of national business cycles to these shocks? To this end, we employ a large scale hierarchical dynamic factor model that decomposes the growth rates of GDP, consumption, and investment for 106 countries over 1961-2014 into a global, a group-, and a country-specific factor, as well as an idiosyncratic component. The factor loadings and conditional variances are allowed to vary over time according to random walk processes. Instead of assuming that the parameters change, we test for time variation using a Bayesian stochastic model specification search. Our results confirm a reduction in the importance of the global business cycle for the vast majority of our countries. However, the sensitivity of most countries to global or group-specific shocks as measured by the factor loadings has not changed over time. Instead, the magnitude of the global shocks relative to group-specific and country-specific shocks has decreased, resulting in a lower relevance of global shocks for national cycles.

Keywords: global business cycle; dynamic factor model; time-varying parameter; stochastic volatility; model selection (search for similar items in EconPapers)
JEL-codes: C32 C52 F44 (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.econstor.eu/bitstream/10419/149136/1/877333734.pdf (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:zbw:cegedp:300

Access Statistics for this paper

More papers in University of Göttingen Working Papers in Economics from University of Goettingen, Department of Economics Contact information at EDIRC.
Bibliographic data for series maintained by ZBW - Leibniz Information Centre for Economics ().