Introduction / J. Heine -- The party system / R. Anderson -- Puerto Rican political participation / A. Falcon -- The Puerto Rican labor movement / M. Galvin -- Puerto Rico, 1948-1979 / J. Joaquin Villamil -- The transfer economy of Puerto Rico / E. Gutierrez -- Crops vs. coupons / R. Weisskoff -- The economic implications of statehood / B. Finn -- Idealogical links between Puerto Rican and U.S. political parties / J.M. Garcia-Passalacqua -- The American statehood process and its relevance to Puerto Rico's colonial reality / L. Davila & N. Jimenez -- U.S. policy and Puerto Rico / A. Stepan.