Equilibrium Asset Prices and No-Arbitrage with Portfolio Constraints
- 1 October 1997
- journal article
- research article
- Published by Oxford University Press (OUP) in The Review of Financial Studies
- Vol. 10 (4), 1133-1174
- https://doi.org/10.1093/rfs/10.4.1133
Abstract
We examine intertemporal asset pricing when short sales are constrained in proportion to the value of an investor’s portfolio. All assets’ prices exceed every investor’s marginal utility of consumption-based valuation of the associated dividends if every investor finds himself constrained in some asset in some state; we exhibit such an equilibrium. An asset’s price decomposes into three (investor-specific) components: the consumption value of its dividends, a speculative value premium, and a collateral value premium. The validity of the no-arbitrage pricing approach is shown to depend critically on the difference between real securities and their synthetic counterparts.Keywords
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