Asset trading volume in a production economy |
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Authors: | Emilio Espino Thomas Hintermaier |
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Affiliation: | (1) Department of Economics, Universidad Torcuato Di Tella, Saenz Valiente 1010 (C1428BIJ), Buenos Aires, Argentina;(2) Department of Economics and Finance, Institute for Advanced Studies (IHS), Stumpergasse 56, 1060 Vienna, Austria |
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Abstract: | Judd et al. (J Finance 63: 2203–2217, 2003) show that the stationary Lucas tree model cannot generate nontrivial asset trading: Heterogenous agents will optimally choose a fixed portfolio after initial rebalancing. This paper explores asset trading volume in production economies with heterogeneous agents and dynamically complete market structures. We establish a recursive version of the Negishi approach to prove the existence of a competitive equilibrium. Furthermore, we develop a general method to solve for equilibrium portfolios in production economies within a fairly general set of complete market structures. We thus establish the theoretical reasons why production economies in general generate a nontrivial volume of asset trading even if heterogeneity of the agents is kept to a minimum. We would like to thank W. Brock, D. DeJong and, especially, H. Ennis for comments and suggestions. We also thank seminar participants at Di Tella and San Andrés Universities (Argentina), the Institute for Advanced Studies (Austria), SED Meetings 2005 (Budapest) and SAET Conference 2005 (Vigo). |
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Keywords: | Asset trading Complete markets Production economies |
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