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Investment, Consumption and Hedging under Incomplete Markets

  • Junjian Miao

    ()

    (Department of Economics, Boston University)

  • Neng Wang

    ()

    (Columbia Business School)

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.

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Paper provided by Boston University - Department of Economics in its series Boston University - Department of Economics - Macroeconomics Working Papers Series with number WP2005-011.

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Length: 42 pages
Date of creation: Oct 2005
Date of revision: Sep 2006
Publication status: published, Journal of Financial Economics 86 (2007), 608-642
Handle: RePEc:bos:macppr:wp2005-011
Contact details of provider: Postal: 270 Bay State Road, Boston, MA 02215
Phone: 617-353-4389
Fax: 617-353-4449
Web page: http://www.bu.edu/econ/

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