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Payments Systems with Random Matching and Private Information

  • Williamson, Stephen


    (University of Iowa)

A model of dynamic risk-sharing is constructed where agents meet pairwise and at random, and there is private information about endowments. Risk sharing is accomplished through dynamic contracts involving credit transactions, and through monetary exchange. A Friedman rule is optimal, and solutions are computed. The welfare costs of inflation and the effects of inflation on the distribution of consumptions and wealth are small for an economy calibrated to U.S. data. However, these effects are large when the credit system is relatively unsophisticated.

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Paper provided by University of Iowa, Department of Economics in its series Working Papers with number 97-21.

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Length: 36 Pages
Date of creation: Sep 1997
Date of revision:
Handle: RePEc:uia:iowaec:97-21
Contact details of provider: Postal: University of Iowa, Department of Economics, Henry B. Tippie College of Business, Iowa City, Iowa 52242
Phone: (319) 335-0829
Fax: (319) 335-1956
Web page:

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  1. Lacker, Jeffrey M. & Schreft, Stacey L., 1996. "Money and credit as means of payment," Journal of Monetary Economics, Elsevier, vol. 38(1), pages 3-23, August.
  2. Aiyagari, S. Rao & Williamson, Stephen, 1997. "Money and Dynamic Credit Arrangements with Private Information," Working Papers 97-19, University of Iowa, Department of Economics.
  3. Freeman, Scott, 1996. "The Payments System, Liquidity, and Rediscounting," American Economic Review, American Economic Association, vol. 86(5), pages 1126-38, December.
  4. Dotsey, Michael & Ireland, Peter, 1996. "The welfare cost of inflation in general equilibrium," Journal of Monetary Economics, Elsevier, vol. 37(1), pages 29-47, February.
  5. Freeman, Scott, 1999. "Rediscounting under aggregate risk," Journal of Monetary Economics, Elsevier, vol. 43(1), pages 197-216, February.
  6. S. Rao Aiyagari & Stephen D. Williamson, 1999. "Credit in a Random Matching Model with Private Information," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 2(1), pages 36-64, January.
  7. Atkeson Andrew & Lucas Jr. , Robert E., 1995. "Efficiency and Equality in a Simple Model of Efficient Unemployment Insurance," Journal of Economic Theory, Elsevier, vol. 66(1), pages 64-88, June.
  8. S. Rao Aiyagari & Stephen D. Williamson, 1998. "Money, Credit, and Allocation Under Complete Dynamic Contracts and Incomplete Markets," Game Theory and Information 9802003, EconWPA.
  9. Phelan, C. & Townsend, R.M., 1990. "Computing Multiperiod, Information-Constrained Optima," University of Chicago - Economics Research Center 90-13, Chicago - Economics Research Center.
  10. Atkeson, Andrew & Lucas, Robert E, Jr, 1992. "On Efficient Distribution with Private Information," Review of Economic Studies, Wiley Blackwell, vol. 59(3), pages 427-53, July.
  11. Trejos, Alberto & Wright, Randall, 1995. "Search, Bargaining, Money, and Prices," Journal of Political Economy, University of Chicago Press, vol. 103(1), pages 118-41, February.
  12. Kocherlakota, Narayana R., 1998. "Money Is Memory," Journal of Economic Theory, Elsevier, vol. 81(2), pages 232-251, August.
  13. Narayana R. Kocherlakota & Neil Wallace, 1997. "Optimal allocations with incomplete record-keeping and no commitment," Working Papers 578, Federal Reserve Bank of Minneapolis.
  14. Kiyotaki, Nobuhiro & Wright, Randall, 1993. "A Search-Theoretic Approach to Monetary Economics," American Economic Review, American Economic Association, vol. 83(1), pages 63-77, March.
  15. Kiyotaki, Nobuhiro & Wright, Randall, 1989. "On Money as a Medium of Exchange," Journal of Political Economy, University of Chicago Press, vol. 97(4), pages 927-54, August.
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