Trade in Capital Goods and International Co-movements of Macroeconomic Variables

This paper contributes to the ongoing debate on the causes of international co-movements of macroeconomic variables. In particular, existing real business cycle models predict cross-country consumption correlations to be higher than in the actual data, cross-country output correlations to be lower than in the actual data, and cross-country consumption correlations to be relatively higher than the output correlations. We show that cross-country correlations of consumption, investment, employment and output predicted by a standard international real business cycle model are highly sensitive to the share of capital goods in total trade. Our calibrated model shows that when capital goods account for a share of total traded goods greater than 50%, the apparent discrepancy between the data and the simulations is resolved.