Gregor Jarosch

Journal Article Review of Economic Studies · November 1, 2024 We develop a model of size-based market power in a frictional labour market. In the canonical search environment, competition for workers is encoded in outside options. In our granular setting, large employers remove their own job postings from their worke ... Full text Cite

Searching for Job Security and the Consequences of Job Loss

Journal Article Econometrica · May 1, 2023 Job loss comes with large present value earnings losses which elude workhorse models of unemployment and labor market policy. I propose a parsimonious model of a frictional labor market in which jobs differ in terms of unemployment risk and workers search ... Full text Cite

The Emergence of Market Structure

Journal Article Review of Economic Studies · January 1, 2023 We study a model of over-the-counter trading in which ex ante identical traders invest in a contact technology and participate in bilateral trade. We show that a rich market structure emerges both in equilibrium and in an optimal allocation. There is conti ... Full text Cite

Internal and external effects of social distancing in a pandemic

Journal Article Journal of Economic Theory · September 1, 2021 We develop a quantitative framework for exploring how individuals trade off the utility benefit of social activity against the internal and external health risks that come with social interactions during a pandemic. We calibrate the model to external targe ... Full text Cite

Learning From Coworkers

Journal Article Econometrica · March 1, 2021 We investigate learning at the workplace. To do so, we use German administrative data that contain information on the entire workforce of a sample of establishments. We document that having more-highly-paid coworkers is strongly associated with future wage ... Full text Cite

Statistical discrimination and duration dependence in the job finding rate

Journal Article Review of Economic Studies · July 1, 2019 This article models a frictional labour market where employers endogenously discriminate against the long-term unemployed. The estimated model replicates recent experimental evidence which documents that interview invitations for observationally equivalent ... Full text Cite