Arbitrage pricing theory and risk-neutral measures |
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Authors: | Miklós Rásonyi |
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Affiliation: | (1) Computer and Automation Institute of the Hungarian Academy of Sciences, |
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Abstract: | Abstract We consider a market with countably many risky assets and finite factor structure, as in the “arbitrage pricing theory” of Ross (1976). We prove necessary and sufficient conditions in terms of parameters for the existence of an equivalent risk-neutral measure, i.e., a measure under which each asset return has zero expected value. We relate these conditions to a certain absence of arbitrage property of the model. Mathematics Subject Classification (2000): 91B24, 91B28 Journal of Economic Literature Classification: G10, G12 |
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