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Erscheinungsjahr: 
2009
Schriftenreihe/Nr.: 
Reihe Ökonomie / Economics Series No. 245
Verlag: 
Institute for Advanced Studies (IHS), Vienna
Zusammenfassung: 
The consequences of consolidating EU representation at the IMF Executive Board by regrouping the 27 Member States into two EU constituencies, euro area and non-euro area, are discussed. In particular we contrast voting power as proposed by Penrose-Banzhaf (PBI) and Shapley-Shubik (SSI), and other respectively related measures of blocking (or veto) power and decision efficiency as proposed by Coleman and Paterson. Hitherto, IMF-specific literature is PBI-based. However, theoretical reasons and empirical plausibility arguments for the SSI are compelling. The (SSI) voting power of the two large constituencies - U.S.A. and euro area - reflects their corresponding voting shares over a range of majority thresholds, whereas PBI voting power reduces to only half of vote share at the majority threshold of 85% needed for some Executive Board decisions. SSI-related estimates of veto power are generally lower than the Coleman indices. Correspondingly, the efficiency of collective decision-making is considerably underestimated by the Coleman measure.
Schlagwörter: 
International Monetary Fund
European Union
voting power analysis
veto power
JEL: 
C71
D71
Dokumentart: 
Working Paper

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