Abstract
In the standard ‘capital asset pricing model’ (CAPM) with a riskless asset we give a sufficient condition for uniqueness. This condition is a joint restriction on the agents’ endowments and their preferences which is compatible with non-increasing absolute risk aversion and which is in particular satisfied with constant absolute risk aversion. Moreover, in the CAPM without a riskless asset we give an example for multiple equilibria even though all agents have constant absolute risk aversion.
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