1. Collective Intentionality Reconsidered. 1.1. Plural Action: Concepts and Problems 1.2. Overcoming the 'Cartesian Brainwash' 1.3.On Not Doing One's Part 1.4. Shared Feelings 2. Collective Intentionality in the Social Sciences. 2.1. Social Identities in Experimental Economics 2.2. Rationalizing Coordination 2.3. Beyond Self-Goal Choice: Rationality and Commitment 2.4. Lending a Hand: Basic Structures of Cooperation 3. Engaging the 'Classics': Four...