Abstract:
In this paper, we give a unified approach to equilibrium asset pricing theories. We define a factor subspace and develop a general equilibrium model with an infinite dimensional contingent claim space which will be applied to asset pricing models. We show that there exists a minimal factor subspace F in the sense that no proper subspace of F can serve a factor subspace. We discuss how the minimal F can be determined endogenously given a market structure. The analysis in this paper can be applied to: Economy without aggergate risk; CAPM with elliptical distributions; Equilibrium version of APT; Economy with call options.
JEL-codes:G (search for similar items in EconPapers) Date: 1994-10-13, Revised 1994-10-23 Note: 31 pages, plain TeX View list of references