Pier Angelo Mori is Professor of Economics at the University of Firenze, Italy, since 1995. His research field is the economic theory of contracts and organizations; cooperatives, the non profit sector and the regulation and organization of public services. He also has a special focus on the theory of regulation and auctions for the award of public services. Professor Mori autored several papers on international scientific journals. His most recent publications are dedicated to the role of cooperatives and non profit firms operating in public services.