Weak States and Institutionalized Bargaining Power in International Organizations

When and how can weak states increase their bargaining leverage in international organizations? I argue that during phases of routine bargaining, distributional outcomes depend on the states' political and economic leverage and less on the formal allocation rules, so they are unfavorable to weak states. This changes in phases of extraordinary bargaining occasioned by significant reform such as enlargement. States that expect distributional conflict from enlargement can threaten to block accession negotiations and increase their membership benefits even if they are politically weak. Statistical and qualitative analyses of distributional bargaining in the European Union support the theoretical claims