The three essays in this dissertation analyze fiscal federalism in Brazil. The first studies the long run trends of the fiscal centralization and the size of government and their relationship during the XX Century. The most important finding of the first essay is that the process of decentralization inspired by the 1946 and 1948 Constitutions led to an overall expansion of government activities (at the federal, state, and municipal levels). The increase in state and municipal expenditures - because of the decentralization of fiscal resources - was not matched by an equivalent reduction in federal expenditures. Because federal expenditures did not decrease accordingly, and because the decentralization of fiscal resources resulted in a loss of federal revenues, the federal government needed to increase taxes in order to narrow the deficit. The second essay analyzes the use of intergovernmental transfers to finance lower levels of government. The essay develops an analytical model to explain both the expansive effects of transfers on the expenditures of recipient governments, called the flypaper effect. as well as reasons for their regional differences. Using an space-parameter varying estimation, the study empirically demonstrates the expansive effects of intergovernmental and detects their regional differences in Brazilian local governments finances. Finally, the third essay argues that political cycles strongly influenced the fiscal behavior of Brazilian states between 1985 and 1997. The study confirms the existence of political cycles, the influence of political fragmentation, the fiscal discipline induced by the participation of the population and that left wing administrations tended to adopt more expansionary fiscal policies than center or right wing administrations.