Defense date: 16/04/2010Examining Board: Professor Pascal Courty, University of Victoria, Canada, Supervisor Professor Luigi Guiso, EUI Professor Franklin Allen, University of Pennsylvania Professor Benjamin Lockwood, University of WarwickWhat is Corporate Social Responsibility (CSR) and how can we explain the phenomenon from an economic perspective? Is there a business case for CSR and was Milton Friedman right when writing in the New York Times in 1970 that "the social responsibility of business is to increase its profits"? Chapter 1 of this thesis will address all these questions and create a coherent conceptual framework for further analysis in the subsequent chapters. In this function it will serve as a natural introduction to the econ...