In this paper, we study the role of coworker referrals for labor market outcomes. Using comprehensive Danish administrative data covering the period 1980 to 2005, we first document a strong tendency of workers to follow their former coworkers into the same establishments and provide evidence...

We investigate whether workers reallocate up firm productivity and wage job ladders, and the cyclicality of this process. We document that productivity is a better measure of the job ladder than the average wage, since high productivity firms relative to low poach more workers than high wage...