We survey the microfoundations, empirical evidence and estimation issues underlying the aggregate matching function. Several microeconomic matching mechanisms have been suggested in the literature with some successes but none is generally accepted as superior to all others. Instead, an aggregate...

I analyze empirically the effects of both urban and industrial agglomeration on men`s and women`s search behavior and on the efficiency of matching. The analysis is based on the Italian Labor Force Survey micro-data, which covers 520 randomly drawn Local Labor Market Areas (66 per cent of the...

I analyze empirically the effects of both urban and industrial agglomeration on men�s and women�s search behavior and on the efficiency of matching. The analysis is based on a unique panel data set from the Italian Labor Force Survey micro-data, which covers 520 randomly drawn Local...

This paper measures the job-search responses to the COVID-19 pandemic using realtime data on vacancy postings and ad views on Sweden's largest online job board. First, the labour demand shock in Sweden is as large as in the US, and affects industries and occupations heterogeneously. Second, the...

This paper measures the job-search responses to the COVID-19 pandemic using realtime data on vacancy postings and job ad views on Sweden's largest online job board. First, new vacancy postings drop by 40%, similar to the US. Second, job seekers respond by searching less intensively, to the...

It is well known that the Diamond-Mortensen-Pissarides model exhibits a strong trade-off between cyclical unemployment fluctuations and the size of rents to employment. Introducing endogenous job search effort reduces the strength of the trade-off while bringing the model closer to the data....

This paper measures the job-search responses to the COVID-19 pandemic using realtime data on vacancy postings and job ad views on Sweden's largest online job board. First, new vacancy postings drop by 40%, similar to the US. Second, job seekers respond by searching less intensively, to the...

This paper measures the job-search responses to the COVID-19 pandemic using realtime data on vacancy postings and ad views on Sweden's largest online job board. First, the labour demand shock in Sweden is as large as in the US, and affects industries and occupations heterogeneously. Second, the...

This paper contributes to the debate concerning the micro-foundation of matching functions in frictional labor markets. The focus is on a particular matching regime, i.e., the so-called urn-ball process. It is shown that in a two-sector economy, even in the presence of heterogeneous workers, the...

This paper proposes a new method to estimate the extent of job competition between workers with different schooling levels. We estimate the structural parameters of a matching function generalised to incorporate crowding out effects. We use flow data out of unemployment containing information on...