Global shocks and emerging economies: disentangling the commodity roller coaster

Mauro Ferreira and Andre Valerio
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Mauro Ferreira: Cedeplar-UFMG

No 623, Textos para Discussão Cedeplar-UFMG from Cedeplar, Universidade Federal de Minas Gerais

Abstract: Shocks in commodity prices have been viewed as a major driver of emerging economies’ business cycle. We show this is not the case for Brazil, Chile, Colombia, and Peru (all commodity exporters) after allowing for a full macro-finance linkage, at world and domestic level, in a structural VAR. To achieve our results, the international bloc of the VAR includes a measure of global GDP, an aggregate commodity price index, and a volatility index (VIX). The presence of this last variable, from which we capture global economic uncertainty shock, is responsible for modifying established results. Global demand shocks have been the main international driver of the business cycle in Brazil, Chile, and Peru, while global economic uncertainty shocks have been the most important international driver of the Colombian GDP. Aggregate shocks to the world commodity market become more relevant only when a less structured model of the global economy is in place, since commodity prices react endogenously to innovations elsewhere, playing a major role as a propagator. The econometric models also include the following domestic variables: GDP, CPI, sovereign spread, nominal exchange rate, and policy interest rate.

Keywords: Global shocks; business cycle; uncertainty; commodity price; global activity; emerging economies; Bayesian SVAR. (search for similar items in EconPapers)
JEL-codes: C32 E32 F41 F44 F62 F63 O54 (search for similar items in EconPapers)
Pages: 56 pages
Date: 2020-06
New Economics Papers: this item is included in nep-lam, nep-mac and nep-opm
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