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 …

'.The first project reveals that the prevailing notion of education externalities is misleading and therefore empirical … externalities of education according to Lucas (1988) are likely to be internalized on the labor market. Education is recognized as a … education. Further, by differentiating 'education' and 'knowledge' it becomes obvious that growth externalities according to …

conducted. A distinction is made between two types of appropriation externalities: those that are restricted to a single period …

. 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. …