occupation it may harm some workers while benefitting others; and it may either reduce or increase the proportion of knowledge … workers in employment. In my model, knowledge (in a broad sense) is an input into the production function of human capital …-quality one. People differ in their exogenous ability and ability is complementary with the quality of the knowledge input in the …

well as for the identity of the key player. We study the possibility of testing endogeneity in network formation. We … analysis suggests that greater care should be taken in grounding econometric network models to sound and credible theoretical …

When workers send applications to vacancies they create a network. Frictions arise because workers typically do not … friction affects network formation, while the second coordination friction affects network clearing. We show that those … that can arise and the number of matches on a given network. Equilibria that exhibit wage dispersion are inefficient in …

their connections within the organized crime network, I estimate network effects on gangsters' economic status. Lacking … causality between the economic status and the gangster's position in the network exploiting exogenous exposure to potential pre … gangsters' importance in- side the network (called centrality) but not the preference for specific housing needs. A standard …