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Liquidity and Asset Returns under Asymmetric Information and Imperfect Competition

Dimitri Vayanos and Jiang Wang

FMG Discussion Papers from Financial Markets Group

Abstract: We analyze how asymmetric information and imperfect competition a®ect liquidity and asset prices. Our model has three periods: agents are identical in the ¯rst, become heterogeneous and trade in the second, and consume asset payo®s in the third. We show that asymmetric information in the second period raises ex ante expected asset returns in the first, comparing both to the case where all private signals are made public and to that where private signals are not observed. Imperfect competition can instead lower expected returns. Each imperfection can move common measures of illiquidity in opposite directions.

Date: 2012-07
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