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Competition in Portfolio Management: Theory and Experiment

  • Elena Asparouhova
  • Peter Bossaerts
  • Jernej Copic
  • Brad Cornell
  • Jaksa Cvitanic
  • Debrah Meloso

We develop a new theory of delegated investment whereby managers compete in terms of composition of the portfolios they promise to acquire. We study the resulting asset pricing in the inter-manager market. We incentivize investors so that we obtain sharp predictions. Managers are paid a fixed fraction of fund size. In equilibrium, investors choose managers who offer portfolios that mimic Arrow-Debreu (state) securities. Prices in the inter-manager market are predicted to satisfy a weak version of the CAPM: state-price probability ratios implicit in prices of traded assets decrease in aggregate wealth across states. An experiment involving about one hundred participants over six weeks broadly supports the theoretical predictions. Pricing quality declines, however, when fund concentration increases because funds flow towards managers who offer portfolios closer to Arrow-Debreu securities (as in the theory) and who had better recent performance (an observation unrelated to the theory).

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Paper provided by IGIER (Innocenzo Gasparini Institute for Economic Research), Bocconi University in its series Working Papers with number 438.

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Date of creation: 2012
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Handle: RePEc:igi:igierp:438
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  1. Asparouhova, Elena & Bossaerts, Peter & Plott, Charles, 2003. "Excess demand and equilibration in multi-security financial markets: the empirical evidence," Journal of Financial Markets, Elsevier, vol. 6(1), pages 1-21, January.
  2. Bossaerts, Peter & Plott, Charles, 2000. "Basic Principles Of Asset Pricing Theory: Evidence From Large-Scale Experimental Financial Markets," CEPR Discussion Papers 2578, C.E.P.R. Discussion Papers.
  3. Elena Asparouhova, 2006. "Competition in Lending: Theory and Experiments," Review of Finance, European Finance Association, vol. 10(2), pages 189-219.
  4. Philip H. Dybvig & Heber K. Farnsworth & Jennifer N. Carpenter, 2010. "Portfolio Performance and Agency," Review of Financial Studies, Society for Financial Studies, vol. 23(1), pages 1-23, January.
  5. Bhattacharya, Sudipto & Pfleiderer, Paul, 1985. "Delegated portfolio management," Journal of Economic Theory, Elsevier, vol. 36(1), pages 1-25, June.
  6. Cadenillas, Abel & Cvitanic, Jaksa & Zapatero, Fernando, 2007. "Optimal risk-sharing with effort and project choice," Journal of Economic Theory, Elsevier, vol. 133(1), pages 403-440, March.
  7. Heinkel, Robert & Stoughton, Neal M, 1994. "The Dynamics of Portfolio Management Contracts," Review of Financial Studies, Society for Financial Studies, vol. 7(2), pages 351-87.
  8. Stoughton, Neal M, 1993. " Moral Hazard and the Portfolio Management Problem," Journal of Finance, American Finance Association, vol. 48(5), pages 2009-28, December.
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