Portfolio Choice when Managers Control Returns
This paper investigates the allocation decision of an investor with two projects. Separate managers control the mean return from each project, and the investor may or may not observe the managers’ actions. We show that the investor’s risk-return trade-off may be radically different from a standard portfolio choice setting, even if managers’ actions are observable and enforceable. In particular, feedback effects working through optimal contracts and effort levels imply that expected terminal wealth is nonlinear in initial wealth allocation. The optimal portfolio may involve very little diversification, despite projects that are highly symmetric in the underlying model. We also show that moral hazard in one of the projects need not imply lower allocation to that project. Expected returns are generally lower than under the first-best, but the optimal contract shifts more of the idiosyncratic risk in the hidden action project to the manager in charge of it. The minimum-variance position of the investor’s (net) terminal wealth would in most cases involve a portfolio shift towards the hidden action project, and there are plausible cases where this would dominate the overall effect on the second-best optimal portfolio when comparing with the first-best.
|Date of creation:||05 Feb 2006|
|Date of revision:|
|Contact details of provider:|| Postal: 7491 Trondheim|
Phone: 73 59 19 40
Fax: 73 59 69 54
Web page: http://www.svt.ntnu.no/iso/WP/wp.htm
More information through EDIRC
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Bengt Holmstrom, 1981.
"Moral Hazard in Teams,"
471, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
- Karen K. Lewis, 1999. "Trying to Explain Home Bias in Equities and Consumption," Journal of Economic Literature, American Economic Association, vol. 37(2), pages 571-608, June.
- Bengt Holmstrom & Paul R. Milgrom, 1985.
"Aggregation and Linearity in the Provision of Intertemporal Incentives,"
Cowles Foundation Discussion Papers
742, Cowles Foundation for Research in Economics, Yale University.
- Holmstrom, Bengt & Milgrom, Paul, 1987. "Aggregation and Linearity in the Provision of Intertemporal Incentives," Econometrica, Econometric Society, vol. 55(2), pages 303-28, March.
- Campbell, John Y. & Viceira, Luis M., 2002. "Strategic Asset Allocation: Portfolio Choice for Long-Term Investors," OUP Catalogue, Oxford University Press, number 9780198296942, December.
- 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.
- Philip H. Dybvig & Heber K. Farnsworth & Jennifer Carpenter, 1999. "Portfolio Performance and Agency," New York University, Leonard N. Stern School Finance Department Working Paper Seires 99-046, New York University, Leonard N. Stern School of Business-.
- Noah Williams, 2004. "On Dynamic Principal-Agent Problems in Continuous Time," Levine's Bibliography 122247000000000426, UCLA Department of Economics.
- Hui Ou-Yang, 2003. "Optimal Contracts in a Continuous-Time Delegated Portfolio Management Problem," Review of Financial Studies, Society for Financial Studies, vol. 16(1), pages 173-208.
- Jaeyoung Sung, 1995. "Linearity with Project Selection and Controllable Diffusion Rate in Continuous-Time Principal-Agent Problems," RAND Journal of Economics, The RAND Corporation, vol. 26(4), pages 720-743, Winter.
When requesting a correction, please mention this item's handle: RePEc:nst:samfok:6606. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Hilde Saxi Gildberg)
If references are entirely missing, you can add them using this form.