In recessions, unemployment increases despite the - perhaps counterintuitive - fact that the number of unemployed workers finding jobs expands. On net, unemployment rises only because even more workers lose their jobs. We propose a theory of unemployment fluctuations resting on this...

This paper explores the impact of undocumented as opposed to documented immigration in a model featuring search frictions and non-random hiring that is consistent with novel empirical evidence presented. In this framework, undocumented immigrants' wages are the lowest of all workers due to their...

We analyze the effects of increased immigration of foreign workers on the unionisation rates of native workers in Austrian firms over the period 2002–2012. Our results suggest that lower union density of natives' in firms with more foreign workers is driven not by natives leaving unions, but...

Using administrative data on individual workers' employment history and firms, we investigate the cyclicality of worker flows on the German labour market. Focusing on heterogeneities on both sides of the labour market, we find that small firms hire much more workers from unemployment than large...

We introduce a method that combines data from the U.S. Current Population Survey, Job Openings and Labor Turnover Survey, and state-level Job Vacancy Surveys to construct annual estimates of the number of job openings and hires in the U.S. in the spring of each year by industry and occupation...

In a recent influential paper, Shimer uses CPS duration and gross flow data to draw two conclusions: (1) separation rates are nearly acyclic; and (2) separation rates contribute little to the variability of unemployment. In this paper the authors assert that Shimer's analysis is problematic, for...

In this paper the authors study the cyclical behavior of job loss and hiring using CPS worker flow data, adjusted for margin error and time aggregation error. The band pass filter is used to isolate cyclical components. They consider both total worker flows and transition hazard rates within a...

This paper, using data from the Labour Force survey, examines the decline of employment by sector of economic activity as well as the size and profile of the corresponding worker flows since the beginning of the recent financial crisis. It shows that the 433,500 employment losses until spring...

Job applications have risen over time yet job-finding rates remain unchanged. Meanwhile, separations have declined. We argue that increased applications raise the probability of a good match rather than the probability of job-finding. Using a search model with multiple applications and costly...

This paper analyses the hiring and separation rates in Tunisia before and after the Arab Spring of 2011. Several models are specified to study employment decisions based on quarterly administrative firm level data over the period of 2007 to 2012. The data provides information about important...