Reflections on efficiency and government regulation / Arnold C. Harberger -- Law and post-privatization regulatory reform : perspectives from the U.S. experience / Peter H. Schuck -- Transaction costs, politics, regulatory institutions and regulatory outcomes / Antonio Estache and David Martimort -- Political economy of regulatory policy / Luigi Manzetti -- Structuring prudential bank regulation to promote efficiency and safety / George G. Kaufman -- Reforming urban water systems : a tale of four cities / Mary M. Shirley -- Reforming the electricity sectors in the southern cone : the Chilean and Argentine experiments / Antonio Estache and Martin Rodriguez-Pardina -- Regulating the telecommunications sector : the experience of Latin America / Bjorn Wellenius -- Banking structures, market forces and economic freedom : lessons from Argentina and Mexico / William C. Gruben -- Regulatory policy in an unstable legal environment : the case of Argentina / Roberto Pablo Saba.