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Title:The dynamics of financial crises and the risk to defend the exchange rate PDF Logo
Authors:Bauer, Christian
Herz, Bernhard
Issue Date:2010
Series/Report no.:Beiträge zur Jahrestagung des Vereins für Socialpolitik 2010: Ökonomie der Familie - Session: Modeling Financial Market Risk F1-V1
Abstract:Despite major recent advance in the literature on financial crises, the key role of central banks in financial crises is still not well understood. Our aim is to contribute to a better understanding of the dynamics of financial crises by explicitly modeling the strategic options of both traders and central banks. We analyze a global game in which both speculative traders and the central bank face imperfect information. In case of an attack, the central bank basically faces three alternatives. It can either give in to the speculative attack or it can try to defend its exchange rate regime. If it chooses to defend its currency, the defense can be successful or not. Under rational behavior, the strength of the realized defensive measures - in contrast to the potential defense - in general does not monotonously increase with the fundamental state. In accordance with stylized facts for emerging markets, immediate devaluations are associated with costs in terms of higher (imported) inflation, successful interventions are followed by sluggish growth due to the underlying restrictive monetary policy while unsuccessful interventions typically result in both high inflation and a recession. Taken together, intervention is risky. If a central bank chooses to defend its currency it can avoid the costs of a devaluation in case the defense is successful. However, if it fails it faces the even higher costs of an (unsuccessful) defense and a devaluation, i.e. higher inflation and lower growth.
Subjects:currency crises
monetary policy
global game
imperfect information
JEL:F31
D82
E42
Document Type:Conference Paper
Appears in Collections:Jahrestagung des Vereins für Socialpolitik 2010: Ökonomie der Familie

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