Strong contagion with weak spillovers
In this paper, we develop a model which explains why events in one market may trigger similar events in other markets, even though at first sight the markets appear to be only weakly related. We allow for multiple equilibria and learning dynamics in each market, and show that a jump between equilibria in one market is contagious because it more than doubles the probability of a similar jump in another market. We claim that contagion is strong since equilibrium jumps become highly synchronised across markets. Spillovers are weak because the instantaneous spillover of events from one market to another is small. To illustrate our result, we demonstrate how a currency crisis may be contagious with only weak links between countries. Other examples where weak spillovers would create strong contagion are various models of monetary policy, imperfect competition and endogenous growth
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- Noah Williams, 2003.
"Small Noise Asymptotics for a Stochastic Growth Model,"
NBER Working Papers
10194, National Bureau of Economic Research, Inc.
- Williams, Noah, 2004. "Small noise asymptotics for a stochastic growth model," Journal of Economic Theory, Elsevier, vol. 119(2), pages 271-298, December.
- Noah Williams, 2003. "Small Noise Asymptotics for a Stochastic Growth Model," Computing in Economics and Finance 2003 262, Society for Computational Economics.
- Gerali, Andrea & Lippi, Francesco, 2001.
"On the 'Conquest' of Inflation,"
CEPR Discussion Papers
3101, C.E.P.R. Discussion Papers.
- In-Koo Cho & Noah Williams & Thomas J. Sargent, 2002.
"Escaping Nash Inflation,"
Review of Economic Studies,
Oxford University Press, vol. 69(1), pages 1-40.
- Giorgio E. Primiceri, 2006.
"Why Inflation Rose and Fell: Policy-Makers' Beliefs and U. S. Postwar Stabilization Policy,"
The Quarterly Journal of Economics,
Oxford University Press, vol. 121(3), pages 867-901.
- Giorgio Primiceri, 2005. "Why Inflation Rose and Fell: Policymakers' Beliefs and US Postwar Stabilization Policy," NBER Working Papers 11147, National Bureau of Economic Research, Inc.
- Thomas J. Sargent & Noah Williams & Tao Zha, 2006.
"The conquest of South American inflation,"
FRB Atlanta Working Paper
2006-20, Federal Reserve Bank of Atlanta.
- James B. Bullard & In-Koo Cho, 2003.
"Escapist policy rules,"
2002-002, Federal Reserve Bank of St. Louis.
- William Poole, 2002.
49, Federal Reserve Bank of St. Louis.
- Philippe AGHION & Philippe BACCHETTA & Abhijit BANERJEE, 1999.
"A Simple Model of Monetary Policy and Currency Crises,"
Cahiers de Recherches Economiques du Département d'Econométrie et d'Economie politique (DEEP)
9914, Université de Lausanne, Faculté des HEC, DEEP.
- Aghion, Philippe & Bacchetta, Philippe & Banerjee, Abhijit, 2000. "A simple model of monetary policy and currency crises," European Economic Review, Elsevier, vol. 44(4-6), pages 728-738, May.
- Philippe Aghion & Philippe Bacchetta & Abhijit Banerjee, 1999. "A Simple Model of Monetary Pollicy and Currency Crises," Working Papers 99.05, Swiss National Bank, Study Center Gerzensee.
- Bruce McGough, 2006.
Royal Economic Society, vol. 116(511), pages 507-528, 04.
- Kenneth Kasa, 2000.
"Learning, large deviations, and recurrent currency crises,"
Working Paper Series
2000-10, Federal Reserve Bank of San Francisco.
- Kenneth Kasa, 2004. "Learning, Large Deviations, And Recurrent Currency Crises," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 45(1), pages 141-173, 02.
- Cho, In-Koo & Kasa, Kenneth, 2008.
"Learning Dynamics And Endogenous Currency Crises,"
Cambridge University Press, vol. 12(02), pages 257-285, April.
- Masson, Paul, 1999. "Contagion:: macroeconomic models with multiple equilibria," Journal of International Money and Finance, Elsevier, vol. 18(4), pages 587-602, August.
- Robert J. Tetlow & Peter von zur Muehlen, 2002.
"Avoiding Nash inflation: Bayesian and robust responses to model uncertainty,"
Finance and Economics Discussion Series
2002-9, Board of Governors of the Federal Reserve System (U.S.).
- Robert Tetlow & Peter von zur Muehlen, 2004. "Avoiding Nash Inflation: Bayesian and Robus Responses to Model Uncertainty," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 7(4), pages 869-899, October.
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