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The Case for a Symmetric Reaction. Function of the European Central Bank


  • Donatella Gatti

    (PSE & IZA)

  • Christa von Wijnbergen

    (Chicago University)


In a macro-economic framework where the European Central Bank targets individual country data, the nature of strategic interactions between fiscal authorities in the euro-zone can be described as a stag hunt game with (at least) two equilibria that can be pareto-ranked. In fact we show that, because of the indiscriminate nature of its monetary response, an ECB strategy of monetary retaliation to any individual country's over-expenditure affects all eleven countries to the same extent. This collective effect is similar to the teacher's old favorite "all children stay behind in the class if one misbehaves". This mechanism, we show, makes the game between fiscal authorities a multiple equilibria co-ordination game. We subsequently address the problem of equilibrium selection that is of particular importance to co-ordination games. Following Kandori et al. (1993), we apply Harsanyi and Selten's (1988) riskdominance criterion to single out the conditions for fiscal restraint to emerge as the equilibrium selected by interacting actors. Our main conclusions are that the ECB can ensure convergence of fiscal authorities upon the pareto-optimal equilibrium (that is, fiscal restraint) by adopting a reward-oriented, counter-cyclical strategy that compensates fiscal authorities at the output level both for giving up fiscal discretion and for incurring the risk of being hit by a monetary tightening in response to developments elsewhere in the euro-economy. This means that interest rates' movements should smoothen economic fluctuations in order to give economic actors sufficient incentives to maintain restraint.
(This abstract was borrowed from another version of this item.)

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  • Donatella Gatti & Christa von Wijnbergen, 2005. "The Case for a Symmetric Reaction. Function of the European Central Bank," Macroeconomics 0507009, EconWPA.
  • Handle: RePEc:wpa:wuwpma:0507009 Note: Type of Document - pdf

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    References listed on IDEAS

    1. John C. Harsanyi & Reinhard Selten, 1988. "A General Theory of Equilibrium Selection in Games," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262582384, July.
    2. Allsopp, Christopher & Vines, David, 1998. "The Assessment: Macroeconomic Policy after EMU," Oxford Review of Economic Policy, Oxford University Press, vol. 14(3), pages 1-23, Autumn.
    3. Kandori, Michihiro & Mailath, George J & Rob, Rafael, 1993. "Learning, Mutation, and Long Run Equilibria in Games," Econometrica, Econometric Society, vol. 61(1), pages 29-56, January.
    4. Buti, Marco & Franco, Daniele & Ongena, Hedwig, 1998. "Fiscal Discipline and Flexibility in EMU: The Implementation of the Stability and Growth Pact," Oxford Review of Economic Policy, Oxford University Press, vol. 14(3), pages 81-97, Autumn.
    5. Iversen, Torben, 1998. "Wage Bargaining, Central Bank Independence, and the Real Effects of Money," International Organization, Cambridge University Press, vol. 52(03), pages 469-504, June.
    6. Barry Eichengreen & Charles Wyplosz, 1998. "The Stability Pact: more than a minor nuisance?," Economic Policy, CEPR;CES;MSH, vol. 13(26), pages 65-113, April.
    7. Hall, Peter A. & Franzese, Robert J., 1998. "Mixed Signals: Central Bank Independence, Coordinated Wage Bargaining, and European Monetary Union," International Organization, Cambridge University Press, vol. 52(03), pages 505-535, June.
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    Cited by:

    1. Truger, Achim & Welzmüller, Rudolf (ed.), 2002. "Chancen der Währungsunion nutzen - koordinierte Politik für Beschäftigung und moderne Infrastruktur: Dokumentation des gemeinsamen Workshops von Wirtschafts- und Sozialwissenschaftlichem Institut in d," Study / edition der Hans-Böckler-Stiftung, Hans-Böckler-Stiftung, Düsseldorf, volume 64, number 64.

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    JEL classification:

    • E - Macroeconomics and Monetary Economics


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