Job Contact Networks, Inequality and Aggregate Economic Performance
In this paper we study the effects of social networks on wage inequality and aggregate production. In particular, we consider a simplified version of the model by CalvÃ²-Armengol and Jackson (2003), with good and bad jobs and skilled and unskilled workers. Our findings are: i) increasing the number of social links increases aggregate output and reduces inequality; ii) given a number of social connections, output increases if the average distance among worker decreases; iii) a more mixed society, that is a society in which heterogeneous worker share social links produces more output and less inequality than a society in which some workers are isolated, when productivity of the most productive agents in the best jobs is sufficiently low. We draw some policy implications from these results
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