This paper develops the nonparametric identification of models with production complementarities, worker-firm specific disutility of labor and search frictions. Mobility in the model is subject to preference shocks, and we assume that firms can write wage contracts. We develop a constructive...

How has the internet affected search and hiring, and what are the implications for aggregate unemployment? Answering these questions empirically has proven difficult due to selection in internet use and difficulty in measuring the search activities of both sides of the labor market. This paper...

Most governments are mandated to maintain their economies at full employment. We propose that the best marker of full employment is the efficient unemployment rate, u*. We define u* as the unemployment rate that minimizes the nonproductive use of labor--both jobseeking and recruiting. The...

This paper applies some of the key insights of dynamic discrete choice models to continuous-time job search models. We propose a novel framework that incorporates preference shocks into search models, resulting in a tight connection between value functions and conditional choice probabilities....

There are 420 million young people in Africa today. Understanding how youth search for jobs and what affects their ability to find good jobs is of paramount importance. We do so using a field experiment tracking young job seekers for six years in Uganda's main cities. We examine how two standard...

This study documents how job seekers update perceived job-finding prospects by unemployment duration and by learning about aggregate unemployment. We find that job seekers perceive an 18% decline in their job-finding probability for each additional month of unemployment, but perceive a higher...

In the last two decades, U.S. policies have moved from the use of incentives to the use of sanctions to promote work effort in social programs. Surprisingly, except for anecdotes, there is very little systematic evidence of the extent to which sanctions applied to the abusive use of social...

We explore the impact of wage offers on job applications, testing implications of the directed search model and trying to distinguish it from random search. We use a field experiment conducted on a Chinese job board, with real jobs for which we randomly varied the wage offers across three...

Based on patterns of employment transitions, we identify three different types of workers in the US labor market: α's β's and γ's. Workers of type α make up over half of all workers, are most likely to remain on the same job for more than 2 years and, when they become unemployed, typically...