Asset Prices and Institutional Investors
Empirical evidence indicates that trades by institutional investors have sizable effects on asset prices, generating phenomena such as index effects, asset-class effects and others. It is difficult to explain such phenomena within standard representative-agent asset pricing models. In this paper, we consider an economy populated by institutional investors alongside standard retail investors. Institutions care about their performance relative to a certain index. Our framework is tractable, admitting exact closed-form expressions, and produces the following analytical results. We find that institutions optimally tilt their portfolios towards stocks that comprise their benchmark index. The resulting price pressure boosts index stocks, while leaving nonindex stocks unaffected. By demanding a higher fraction of risky stocks than retail investors, institutions amplify the index stock volatilities and aggregate stock market volatility, and give rise to countercyclical Sharpe ratios. Trades by institutions induce excess correlations among stocks that belong to their benchmark index, generating an asset-class effect.
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- Lakonishok, Josef, et al, 1991.
"Window Dressing by Pension Fund Managers,"
American Economic Review,
American Economic Association, vol. 81(2), pages 227-31, May.
- Bengt Holmstrom, 1997.
"Moral Hazard and Observability,"
Levine's Working Paper Archive
1205, David K. Levine.
- Patrick Bolton & Mathias Dewatripont, 2005.
MIT Press Books,
The MIT Press,
edition 1, volume 1, number 0262025760.
- Eric Zitzewitz, 2006.
"How Widespread Was Late Trading in Mutual Funds?,"
American Economic Review,
American Economic Association, vol. 96(2), pages 284-289, May.
- Cox, John C. & Huang, Chi-fu, 1989. "Optimal consumption and portfolio policies when asset prices follow a diffusion process," Journal of Economic Theory, Elsevier, vol. 49(1), pages 33-83, October.
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