Research Archive

© Financial Management, 2009
Volume: 38 | Issue: 1 | Pages: 59-74

Publication type: Journal article

Research Archive Topic: Capital Markets and Investments, Corporate Finance

Abstract

This paper examines liquidity and how it affects the behavior of mutual fund portfolio managers, who account for a significant portion of trading in many assets. We define an asset to be perfectly liquid if a portfolio manager can trade the quantity she desires when she desires at a price not worse than the uninformed expected value. A portfolio manager is limited by both what she needs to attain and the ease with which she can attain it, making her sensitive to three dimensions of liquidity: price, timing, and quantity. Deviations from perfect liquidity in any of these dimensions impose shadow costs on the portfolio manager. By focusing on the trade-off between sacrificing on price and quantity instead of the canonical price-time trade-off, the model yields several novel empirical implications. Understanding a portfolio manager's liquidity considerations provides important insights into the liquidity of assets and asset classes.

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