With the Russian war against Ukraine, global economic conditions changed abruptly. We provide first causal evidence of effects of the energy crisis on Germany as Europe's most important economy. Combining cost structure data, national accounts and administrative labour market data, we identify...

During the COVID-19 pandemic there were supply chain bottlenecks all over the world with regard to raw materials and intermediate products. In this article, we examine how these constraints affected labour market development. For an empirical panel analysis, we combine survey data and...

We develop a labor demand model that encompasses pre-match hiring cost arising from tight labor markets. Through the lens of the model, we study the effect of labor market tightness on firms' labor demand by applying novel Bartik instruments to the universe of administrative employment data on...

We use novel surveys of firms and workers, linked to administrative employer-employee data, to study the prevalence and importance of individual bargaining in wage determination. We show that simple survey questions accurately elicit firms' bargaining strategies. Using the elicited strategies...

I study the recruiting behaviour of German establishments with regard to the use of foreign labour markets. Applying instrumental variable strategies, I find foreign affinity and labour market scarcity to stimulate the use of foreign markets. Regional labour market scarcity is particularly...

This paper investigates the role of mismatch between job seekers and job openings for the forecasting performance of a labor market matching function. In theory, higher mismatch lowers matching efficiency which increases the risk that the vacancies cannot be filled within the usual period of...

Many labor market models use both idiosyncratic productivity and a vacancy free entry condition. This paper shows that these two features combined generate an equilibrium comovement between matches on the one hand and unemployment and vacancies on the other hand, which is observationally...

This paper examines efficiency in public input provision in two large jurisdictions with imperfect labour markets. It analyses how equilibrium capital tax rates and public input provision levels differ between asymmetric jurisdictions that can strategically influence the interest rate on the...