Network Search: Climbing the Job Ladder Faster

We introduce an irregular network structure into a model of frictional, on‐the‐job search in which workers find jobs through their network connections or directly from firms. We show network‐found jobs have higher wages, and thus better‐connected workers climb the job ladder faster. The mean field approach allows us to formulate heterogeneous workers' recursive problem tractably. Our calibration is consistent with several empirical findings because of a composition—not information—effect. We also introduce new model‐consistent evidence: Job‐to‐job switches at higher ladder rungs are more likely to use networks.