This book is a study of the politics of redistribution and inequality in political unions. It addresses two questions: why some political systems have more centralized systems of interpersonal redistribution than others, and why some political unions make larger efforts to equalize resources among their constituent units than others. This book presents a new theory of the origin of fiscal structures in systems with several levels of government. The argument points to two major factors to account for the variation in redistribution: the interplay between economic geography and political...