The Risk Premium and Long-Run Global Imbalances
Federal Reserve Bank of St. Louis
University of Connecticut
November 26, 2012
Federal Reserve Bank of St. Louis Working Paper No. 2012-009B
This study proposes that heterogeneous household portfolio choices within a country and across countries offer an explanation for global imbalances. We construct a stochastic growth multi-country model in which heterogeneous agents face the following restrictions on asset trade. First, the degree of US equity market participation is higher than that of the rest of the world. Second, a fraction of households in every country maintains a fixed share of equity in their portfolios. In our calibrated model, which matches the US net foreign asset position and the equity premium, the average US household loads up more aggregate risk than the average foreign household by investing in a risky asset abroad and issuing a risk-free asset. As a result, the US is compensated by a high risk premium and runs trade deficits even as a debtor country. The long-run average trade deficit in our model accounts for more than 50% of the observed US trade deficit.
Number of Pages in PDF File: 49
Keywords: Global Imbalances, Current Account, Risk Premium, Asset Pricing, Limited Participation
JEL Classification: E21, F32, F41, G12working papers series
Date posted: April 12, 2012 ; Last revised: November 28, 2012
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