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Sand in the Wheels: A Dynamic Global-Game Approach

  • Laurent Mathevet
  • Jakub Steiner

We study the impact of frictions on the prevalence of systemic crises. Agents privately learn about a fixed payoff parameter, and repeatedly adjust their investments while facing transaction costs in a dynamic global game. The model has a rich structure of externalities: payoffs may depend on the volume of aggregate investment, on the concentration of investment, or on its volatility. We examine how small frictions, including those similar to the Tobin tax, affect the equilibrium. We identify conditions under which frictions discourage harmful behavior without compromising investment volume. The analysis is driven by a robust invariance result: the volume of aggregate investment (measured in a pivotal contingency) is invariant to a large family of frictions.

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Paper provided by The Center for Economic Research and Graduate Education - Economic Institute, Prague in its series CERGE-EI Working Papers with number wp459.

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Date of creation: Apr 2012
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Handle: RePEc:cer:papers:wp459
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  1. Carlin, Wendy & Mayer, Colin, 2003. "Finance, investment, and growth," Journal of Financial Economics, Elsevier, vol. 69(1), pages 191-226, July.
  2. Frankel, David M. & Morris, Stephen & Pauzner, Ady, 2003. "Equilibrium selection in global games with strategic complementarities," Journal of Economic Theory, Elsevier, vol. 108(1), pages 1-44, January.
  3. Carlsson, H. & van Damme, E.E.C., 1990. "Global games and equilibrium selection," Discussion Paper 1990-52, Tilburg University, Center for Economic Research.
  4. Jakub Steiner, 2006. "Coordination of Mobile Labor," ESE Discussion Papers 152, Edinburgh School of Economics, University of Edinburgh.
  5. Christophe Chamley, 2003. "Dynamic Speculative Attacks," American Economic Review, American Economic Association, vol. 93(3), pages 603-621, June.
  6. Frankel, David M. & Burdzy, Krzysztof & Pauzner, Ady, 2001. "Fast Equilibrium Selection by Rational Players Living in a Changing World," Staff General Research Papers 11923, Iowa State University, Department of Economics.
  7. Fudenberg, Drew & Levine, David K., 1988. "Open-loop and closed-loop equilibria in dynamic games with many players," Journal of Economic Theory, Elsevier, vol. 44(1), pages 1-18, February.
  8. repec:ner:tilbur:urn:nbn:nl:ui:12-154416 is not listed on IDEAS
  9. Federico Echenique, 2000. "Extensive-Form Games and Strategic Complementarities," Documentos de Trabajo (working papers) 1300, Department of Economics - dECON.
  10. Iván Werning & George-Marios Angeletos, 2006. "Crises and Prices: Information Aggregation, Multiplicity, and Volatility," American Economic Review, American Economic Association, vol. 96(5), pages 1720-1736, December.
  11. James Tobin, 1978. "A Proposal for International Monetary Reform," Cowles Foundation Discussion Papers 506, Cowles Foundation for Research in Economics, Yale University.
  12. Stephen Morris & Bernardo Guimaraes, 2004. "Risk and Wealth in a Model of Self-Fulfilling Currency Attacks," Yale School of Management Working Papers ysm424, Yale School of Management.
  13. Vives, Xavier, 2006. "Strategic complementarity in multi-stage games," IESE Research Papers D/619, IESE Business School.
  14. George-Marios Angeletos & Alessandro Pavan, 2007. "Dynamic Global Games of Regime Change: Learning, Multiplicity and Timing of Attacks," Discussion Papers 1497, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
  15. Sylvain Chassang, 2010. "Fear of Miscoordination and the Robustness of Cooperation in Dynamic Global Games With Exit," Econometrica, Econometric Society, vol. 78(3), pages 973-1006, 05.
  16. Eugen Kovac & Jakub Steiner, 2008. "Reversibility in Dynamic Coordination Problems," CERGE-EI Working Papers wp374, The Center for Economic Research and Graduate Education - Economic Institute, Prague.
  17. Itay Goldstein & Emre Ozdenoren & Kathy Yuan, 2011. "Learning and Complementarities in Speculative Attacks," Review of Economic Studies, Oxford University Press, vol. 78(1), pages 263-292.
  18. Dasgupta, Amil, 2007. "Coordination and delay in global games," Journal of Economic Theory, Elsevier, vol. 134(1), pages 195-225, May.
  19. George-Marios Angeletos & Christian Hellwig & Alessandro Pavan, 2007. "Dynamic Global Games of Regime Change: Learning, Multiplicity, and the Timing of Attacks," Econometrica, Econometric Society, vol. 75(3), pages 711-756, 05.
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