It is often useful to price assets and other random payoffs by reference to other observed prices rather than construct full-fledged economic asset pricing models. This approach breaks down if one cannot find a perfect replicating portfolio. We impose weak economic restrictions to derive usefully tight bounds on asset prices in this situation. The bounds basically rule out high Sharpe ratios - `good deals' - as well as arbitrage opportunities. We present the method of calculation, we extend it to a multiperiod context by finding a recursive solution, and we apply it to option pricing examples including the Black-Scholes setup with infrequent trading, and a model with stochastic stock volatility and a varying riskfree rate.
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Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number
5489.
Length: Date of creation: Mar 1996 Date of revision: Handle: RePEc:nbr:nberwo:5489
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Nicolae Garleanu & Lasse Heje Pedersen & Allen M. Poteshman, 2005.
"Demand-Based Option Pricing,"
NBER Working Papers
11843, National Bureau of Economic Research, Inc.
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Other versions:
Nicolae Garleanu & Lasse Heje Pedersen & Allen M. Poteshman, 2009.
"Demand-Based Option Pricing,"
Review of Financial Studies,
Oxford University Press for Society for Financial Studies, vol. 22(10), pages 4259-4299, October.
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