Munich Personal RePEc Archive

Project valuation and investment decisions: CAPM versus arbitrage

Magni, Carlo Alberto (2007): Project valuation and investment decisions: CAPM versus arbitrage. Published in: Applied Financial Economics Letters , Vol. 3, No. 1 (March 2007): pp. 137-140.


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This paper shows that (i) project valuation via disequilibrium NPV+CAPM contradicts valuation via arbitrage pricing, (ii) standard CAPM-minded decision makers may fail to profit from arbitrage opportunities, (iii) standard CAPM-based valuation violates value additivity. As a consequence, the standard use of CAPM for project valuation and decision making should be reconsidered.

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