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Job Matching, Social Network and Word-of-Mouth Communication
Department of Economics, Universidad Carlos III .
Department of Economics, University of Southampton.
2001 (English)Report (Other academic)
Abstract [en]

Workers are embedded within a network of social relationships and can communicate through word-of-mouth. They can find a job through either formal agencies or personal contacts. From this micro scenario, we derive an aggregate matching function that has the standard properties but fails to be homogenous of degree one. Search frictions arise endogenously because of coordination failures between workers as in the standard urn-ball model. However, contrary to the latter, the network of personal contacts allows here for a (partial) replacement of redundant jobs. Therefore, introducing word-of-mouth communication among network-related individuals reduces coordination failures and alleviates the associated search frictions. In particular, when the network size increases, on average, the unemployed workers hear about more vacancies through their social network but, at the same time, it is more likely that multiple vacancies reach the same unemployed worker. Above certain ciritical value, this job overcrowding becomes so important that job matches decrease with network size. Finally, we show the existence and uniqueness of the labor market equilibrium and study its properties. In dense enough networks, the corresponding equilibrium unemployment rate increases with network size.

Place, publisher, year, edition, pages
Stockholm: Institute for International Economic Studies, Stockholm University , 2001. , 39 p.
Seminar Paper / Institute for International Economic Studies, Stockholm University. (Online), ISSN 1653-610X
National Category
URN: urn:nbn:se:su:diva-41172OAI: diva2:328773
Available from: 2013-01-25 Created: 2010-07-06 Last updated: 2016-04-08Bibliographically approved

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