Calogero Guccio (Ph.D., Catania) is professor of Public Finance at the Department of Economics and Business - University of Catania. His research interests include theoretical and empirical aspects of the evaluation of efficiency of private and public subjects. His research output has been published in leading outlets in the field of economics and public finance. Isidoro Mazza (Ph.D., Amsterdam) is professor of Public Finance at the University of Catania. His main research interests include migration, lobbying, fiscal federalism, patronage and voluntary provision of public goods, voting participation, administration of cultural heritage, art market and education. Giacomo Pignataro (Ph.D, York) is professor of Public Finance at the Department of Economics and Business of the University of Catania. He was Rector of the University of Catania. His research interests include several fields, ranging from cultural economics, efficiency of public expenditure, public procurement to health economics. His research output has been published in several outlets in the field of economics and public finance.