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Investment, Consumption and Hedging under Incomplete Markets

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  • Junjian Miao

    () (Department of Economics, Boston University)

  • Neng Wang

    () (Columbia Business School)

Abstract

Entrepreneurs often face undiversi¯able idiosyncratic risks from their business invest- ments. Motivated by this observation, we extend the standard real options approach to investment to an incomplete markets environment and analyze the joint decisions of busi- ness investments, consumption-saving and portfolio selection. Our analysis depends cru- cially on whether the investment payo®s are in lump-sum or in °ows. Precautionary saving e®ect plays a key role. In the lump-sum payo® case, risk aversion accelerates investment. Moreover, when the agent's precautionary motive is strong enough, an increase in volatility accelerates investment. These results may be reversed for the °ow payo® case. Finally, hedging a®ects investment decisions by changing the expected growth of wealth and reduc- ing the agent's exposure to idiosyncratic risk. The agent's hedging demand is higher when he is closer to exercising the investment option.

Suggested Citation

  • Junjian Miao & Neng Wang, 2005. "Investment, Consumption and Hedging under Incomplete Markets," Boston University - Department of Economics - Macroeconomics Working Papers Series WP2005-011, Boston University - Department of Economics, revised Sep 2006.
  • Handle: RePEc:bos:macppr:wp2005-011
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    More about this item

    Keywords

    real options; idiosyncratic risk; hedging; risk aversion; precautionary saving; incomplete markets;

    JEL classification:

    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G31 - Financial Economics - - Corporate Finance and Governance - - - Capital Budgeting; Fixed Investment and Inventory Studies
    • E2 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment

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