Investment, Consumption and Hedging Under Incomplete Markets

42 Pages Posted: 4 Aug 2005

See all articles by Jianjun Miao

Jianjun Miao

Boston University - Department of Economics

Neng Wang

Columbia University - Columbia Business School, Finance; National Bureau of Economic Research (NBER); Asian Bureau of Finance and Economic Research (ABFER)

Multiple version iconThere are 2 versions of this paper

Date Written: March 15, 2006

Abstract

Entrepreneurs often face undiversifiable idiosyncratic risks from their business investments. Motivated by this observation, we extend the standard real options approach to investment to an incomplete markets environment and analyze the joint decisions of business investments, consumption-saving and portfolio selection. We show that precautionary saving motive affects the investment timing decision in an important way. When the investment payoffs are given in lump sum, risk aversion accelerates investment. For an agent with sufficiently strong precautionary motive, an increase in volatility may accelerate investment, opposite to the standard real options analysis. When the agent can trade the market portfolio to partially hedge against the investment risk, the systematic volatility is compensated via the standard CAPM argument, and the idiosyncratic volatility generates a private equity premium. Finally, for the flow payoff case, the agent's idiosyncratic risk exposure alters both the implied option value and the implied project value, causing the reversal of the results in the lump sum payoff case.

Keywords: real options, idiosyncratic risk, hedging, risk aversion, precautionary saving, incomplete markets

JEL Classification: G11, G31, E2

Suggested Citation

Miao, Jianjun and Wang, Neng, Investment, Consumption and Hedging Under Incomplete Markets (March 15, 2006). Available at SSRN: https://ssrn.com/abstract=765804 or http://dx.doi.org/10.2139/ssrn.765804

Jianjun Miao (Contact Author)

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Neng Wang

Columbia University - Columbia Business School, Finance ( email )

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