We reconsider de Marti and Zenou (2017) model of friendship network formation where individuals belong to two different communities and costs of forming links depend on community memberships. Many inefficient friendship networks such as segregation can arise when all individuals are myopic. Once...

In this paper, we study how exogenously given social relations (e.g. friendship) among the firm owners/managers influence the formation of an R&D collaboration network among the firms. In our framework, firms, prior to competing in the market, invest in R&D collaborations with others which...

We examine the role of ethnic networks in recession-induced SSDI take-up among immigrants in the United States. We show that immigrants from ethnic groups with high take-up rates are more likely to go on disability when jobs become scarce. This effect is concentrated among those people with good...

This article provides evidence from the Congo that social relationships with state officials can decrease one social cost of corruption, in the context of public transport. We first document that police stops can lead to long bribe negotiations. In response, some drivers and officers have built...

Recently, the Chinese concept of guanxi (networks or business relationships) has drawn considerable attention and inspired researchers to explore its prevalence in diverse cultures. Accordingly, we examined the direct link between supervisor-subordinate guanxi and employee work behaviors...

The availability of social media data is growing and represents a new data source for economic research. This paper presents a detailed study on the use of data from a careeroriented social networking platform for measuring employee flows and employer networks. The employment data are exported...

Using data from over 2,000 professionals in 24 large corporations, we show that female leaders shape the relational culture in the workplace differently than male leaders. Males form homophilic professional ties under male leadership, but female leadership disrupts this pattern, creating a less...

I document a new fact about mobility within the United States. County-to-county migration and commuting drop discretely at state borders. People are three times as likely to move to a county 15 miles away, but in the same state, than to an equally-distant county across state lines. Standard...

We introduce a new network centrality measure founded on the Gately value for cooperative games with transferable utilities. A directed network is interpreted as representing control or authority relations between players-constituting a hierarchical network. The power distribution embedded...