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Leverage Constraints and the International Transmission of Shocks
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Abstract
Recent macroeconomic experience has drawn attention to the importance of interdependence among countries through financial markets and institutions, independently of traditional trade linkages. This paper develops a model of the international transmission of shocks due to interdependent portfolio holdings among leverage-constrained financial institutions. In the absence of leverage constraints, international portfolio diversification has no implications for macroeconomic co-movements. When leverage constraints bind, however, the presence of diversified portfolios in combination with these constraints introduces a powerful financial transmission channel which results in a high correlation among macroeconomic aggregates during business cycle downturns, quite independent of the size of international trade linkages.leverage; international transmission; portfolios