Introduction; Lorenzo Sacconi and Giacomo Degli Antoni PART I: NEW PERSPECTIVES ON THEECONOMIC THEORY OF INSTITUTIONS, INDIVIDUAL PREFERENCES AND SOCIAL NORMS A Plea for Unconventional Economics; Bruno S. Fey A Rawlsian View of CSR and the Game Theory of its Implementation (III): Conformism, Equilibrium Refinement and Selection; Lorenzo Sacconi Trustful Banking: A Psychological Game-Theoretical Model of Fiduciary Interactions in Micro-credit Programs; Vittorio Pelligra The Relationship Between Competition and Trust: An Essay in an Historical and Theoretical Perspective; Sergio Beraldo and Gilberto Turati PART II: SOCIAL CAPITAL AND CORPORATE SOCIAL RESPONSIBILITY: A GAME THEORETICAL AND NETWORK ANALYSIS APPROACH Linking Economic and Social-Exchange Games: From the Community Norm to CSR; Masahiko Aoki Social Capital in Networks of Relations; Steffen Lippert Modeling Cognitive Social Capital and Corporate Social Responsibility as Preconditions for Sustainable Networks of Relations; Giacomo Degli Antoni and Lorenzo Sacconi PART III: THE EOCNOMIC EFFECT OF SOCIAL CAPITAL AND OTHER REGARDING PREFERENCES: EXPERIMENTAL AND EMPIRICAL EVIDENCE Social Distance, Cooperation and Other-regarding Preferences: A New Approach Based on the Theory of Relational Goods; Leonardo Becchetti, Giacomo Degli Antoni and Marco Faillo Generalized Trust: An Experimental Perspective; Gianluca Grimalda and Luigi Mittone Testing the Distributive Effects of Social Enterprises: The Case of Italy; Carlo Borzaga, Sara Depedri and Ermanno Tortia PART IV: SOCIAL CAPITAL AND SUSTAINABLE ECONOMIC DEVELOPMENT: THE MACRO APPROACH Social Assets, Technical Progress and Long-Run Welfare; Stefano Bartolini and Luigi Bonatti Generalized Trust: The Macro Perspective; Martin Paldam The Local Path to Sustainable Development: Social Capital in Naples; Raffaella Nanetti, Robert Leonardi and Catalina Holguin