Heterogeneous Expectations and Speculative Behavior in a Dynamic Multi-Asset Framework

Elsevier B.V.
Publication Type:
Journal Article
Journal of Economic Behavior and Organization, 2007, 62 (3), pp. 408 - 427
Issue Date:
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This paper develops a dynamic model of a financial market where heterogeneous agents invest among multiple risky assets and a risk-free asset, under a market maker scenario. Particular attention is paid to the case of two risky assets and two agent types, fundamentalists and trend chasers, whose beliefs on both first and second moments of the conditional distribution of returns are based on past observations. Conditions for the stability of the fundamental equilibrium are established and the effect of the correlation between the risky assets is examined. It turns out that investors anticipated correlation and dynamic portfolio diversification do not always have a stabilizing role, but rather may act as a source of complexity in the financial market.
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