We propose a new view of initial nonresponse bias in longitudinal surveys. Under certain conditions, an initial bias may "fade-away" over consecutive waves. This effect is discussed in a Markovian framework. A general contraction theorem for time inhomogeneous Markov chains is presented. The...

Since the start of the CoViD-19 pandemic, a major source of concern has been its effect on mental health. Using pre- pandemic information and have customized questionnaires in the Dutch LISS panel, we investigate how mental health in the working population has evolved along with the most...

We analyze the long-term effects of gender imbalances on female labor force participation, in particular in the market for politicians. We exploit variation in sex ratios - the number of men divided by the number of women in a region - across Germany induced by WWII. In the 1990 elections, women...

This paper studies the effects of the high-speed internet expansion on the match quality of new hires. They combine data on internet availability at the local level with German individual register and vacancy data. Results show that internet availability has no major impact on the stability of...