characterize cooperation. We then argue that this mechanism is applicable to a wide range of economic questions and illustrate this … claim using the problems of "The Tragedy of the Commons" and "R&D Spillovers in Duopoly" …

cooperation in the presence of "multi-directedness," whereby people's preferences depend on their psychological motives. People …

cooperation in the presence of "multi-directedness", whereby people's preferences depend on their psychological motives. People …

cooperation in the presence of "multi-directedness," whereby people's preferences depend on their psychological motives. People …

. We approach this gap by analyzing the role of positive and negative externalities of link formation. We find general … results that relate situations of positive externalities with stable networks that cannot be 'too dense' in a well …-defined sense, while situations with negative externalities, tend to induce 'too dense' networks. …

. We approach this omission by analyzing the role of positive and negative externalities of link formation. This yields … general results that relate situations of positive externalities with stable networks that cannot be too dense in a well …-defined sense, while situations with negative externalities tend to induce too dense networks. …

. We approach this gap by analyzing the role of positive and negative externalities of link formation. We find general … results that relate situations of positive externalities with stable networks that cannot be "too dense" in a well …-defined sense, while situations with negative externalities, tend to induce "too dense" networks. …

. We approach this omission by analyzing the role of positive and negative externalities of link formation. This yields … general results that relate situations of positive externalities with stable networks that cannot be “too dense” in a well …-defined sense, while situations with negative externalities tend to induce “too dense” networks. …