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The importance of the number of different agents in a heterogeneous asset-pricing model

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  • Den Haan, Wouter J.

Abstract

In this paper, I compare a two-agent asset-pricing model with the corresponding model with a continuum of agents. In a two-agent economy, interest rates respond to idiosyncratic income shocks because each agent represents half of the population. These interest rate effects facilitate consumption smoothing. An agent in a two-agent economy, however, can never lend more than the other agent is allowed to borrow, which prevents him from building a buffer stock of assets. For most parameter values, the first effect is more important. For some parameter values, the interest rate effects in the two-agent economy are so strong that a relaxation of the borrowing constraint reduces an agent's utility.In contrast to these differences, I find that for most parameter values there are no large differences in average interest rates across the two types of economies. In addition, I analyze the business cycle behavior of interest rates in an incomplete markets economy with a continuum of agents. The dynamic response of interest rates to aggregate shocks is a lot more complicated than the response in a complete markets economy and the magnitude of the response is bigger.

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Bibliographic Info

Article provided by Elsevier in its journal Journal of Economic Dynamics and Control.

Volume (Year): 25 (2001)
Issue (Month): 5 (May)
Pages: 721-746

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Handle: RePEc:eee:dyncon:v:25:y:2001:i:5:p:721-746

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Citations

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Cited by:
  1. Felix Kubler & Karl Schmedders, 2000. "Incomplete Markets, Transitory Shocks And Welfare," Computing in Economics and Finance 2000 130, Society for Computational Economics.
  2. Fanti, Luciano & Gori, Luca, 2011. "The codetermined firm in a Cournot duopoly: a stability analysis," MPRA Paper 34144, University Library of Munich, Germany.
  3. Xin, Baogui & Chen, Tong, 2011. "On a master-slave Bertrand game model," Economic Modelling, Elsevier, vol. 28(4), pages 1864-1870, July.
  4. Fanti, Luciano & Gori, Luca, 2012. "The dynamics of a differentiated duopoly with quantity competition," Economic Modelling, Elsevier, vol. 29(2), pages 421-427.
  5. Fanti, Luciano, 2014. "The dynamics of a banking duopoly with capital regulations," Economic Modelling, Elsevier, vol. 37(C), pages 340-349.
  6. Luciano Fanti, 2012. "Environmental standards and Cournot duopoly: a stability analysis," Discussion Papers 2012/154, Dipartimento di Economia e Management (DEM), University of Pisa, Pisa, Italy.
  7. Tomasz Dubiel-Teleszyński, 2010. "Complex Dynamics in a Bertrand Duopoly Game with Heterogeneous Players," Central European Journal of Economic Modelling and Econometrics, CEJEME, vol. 2(2), pages 95-116, March.
  8. Luciano Fanti, 2012. "The dynamics of a banking duopoly with capital regulations," Discussion Papers 2012/151, Dipartimento di Economia e Management (DEM), University of Pisa, Pisa, Italy.
  9. Brumm, Johannes & Grill, Michael, 2014. "Computing equilibria in dynamic models with occasionally binding constraints," Journal of Economic Dynamics and Control, Elsevier, vol. 38(C), pages 142-160.
  10. Polkovnichenko, Valery, 2004. "Limited stock market participation and the equity premium," Finance Research Letters, Elsevier, vol. 1(1), pages 24-34, March.
  11. Finocchiaro, Daria, 2011. "Inattention, wealth inequality and equilibrium asset prices," Journal of Monetary Economics, Elsevier, vol. 58(2), pages 146-155, March.
  12. Christensen, Peter Ove & Larsen, Kasper & Munk, Claus, 2012. "Equilibrium in securities markets with heterogeneous investors and unspanned income risk," Journal of Economic Theory, Elsevier, vol. 147(3), pages 1035-1063.
  13. Santiago Mira-Navarro, 2002. "Equilibria of heterogeneous economies with a continuum of agents," Documentos de trabajo conjunto ULL-ULPGC 2002-08, Facultad de Ciencias Económicas de la ULPGC.

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