NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Capital Mobility and Asset Pricing

Darrell Duffie, Bruno Strulovici

NBER Working Paper No. 17296
Issued in August 2011
NBER Program(s):   AP

We present a model for the equilibrium movement of capital between asset markets that are distinguished only by the levels of capital invested in each. Investment in that market with the greatest amount of capital earns the lowest risk premium. Intermediaries optimally trade off the costs of intermediation against fees that depend on the gain they can offer to investors for moving their capital to the market with the higher mean return. Those fees also depend on the bargaining power of the investor, in light of potential alternative intermediaries. In equilibrium, the speeds of adjustment of mean returns and of capital between the two markets are increasing in the degree to which capital is imbalanced between the two markets.

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Acknowledgments

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Document Object Identifier (DOI): 10.3386/w17296

Published: Darrell Duffie & Bruno Strulovici, 2012. "Capital Mobility and Asset Pricing," Econometrica, Econometric Society, vol. 80(6), pages 2469-2509, November.

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