1 POWER INDICES AND THE VEIL OF IGNORANCE

IVIE working papers o®er in advance the results of economic research under way in order to encourage a discussion process before sending them to scienti¯c journals for their ¯nal publication. * We want to thank M. Maschler and J. M. Zarzuelo for their insightful comments. This research has been supported by the Training and Mobility of Researchers programme initiated by the European Commission, by the IVIE, and by the DGES of the Spanish Ministerio de Educaci¶on y Cultura, unde