Welfare reform has transformed the U.S. cash assistance program for single parents and their children. Although there remains substantial uncertainty about the importance of reform in producing the subsequent decline in the welfare caseload, even less is known about its impact on the experiences...

Welfare reform has transformed the U.S. cash assistance program for single parents and their children. Although there remains substantial uncertainty about the importance of reform in producing the subsequent decline in the welfare caseload, even less is known about its impact on the experiences...

In Silicon Valley's computer cluster, skilled employees are reported to move rapidly between competing firms. This job-hopping facilitates the reallocation of resources towards firms with superior innovations, but it also creates human capital externalities that reduce incentives to invest in...

In Silicon Valley's computer cluster, skilled employees are reported to move rapidly between competing firms. This job-hopping facilitates the reallocation of resources towards firms with superior innovations, but it also creates human capital externalities that reduce incentives to invest in...