. 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 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. …

If local public goods exhibit spillovers and regions are sufficiently symmetric, decentralization implies under …

We characterize the sharing rule that achieves efficiency in a contribution mechanism when agents are heterogeneous … which cooperation is useless …

We study two n-player sequential network formation games with externalities. Link formation is tied to simultaneous … sufficient conditions for efficiency in terms of cyclical monotonicity. The n-player group version always yields efficiency. …

class of coalition formation games with externalities where agents' preferences depend solely on the coalition structures …

We study two n-player sequential network formation games with externalities. Link formation is tied to simultaneous … sufficient conditions for efficiency in terms of cyclical monotonicity. The n-player group version always yields efficiency. …

. 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. …