We provide a framework for the estimation of the impact of fertility timing on female long-term labor supply, measured as labor market work duration. We show that the genuine treatment is waiting time to birth rather than birth per se. In the application we control for the joint decision of...

This paper develops a three stage oligopoly game for R&D cooperation, R&D expenditure and product market competition. In the first stage, firms decide whether or not to conduct R&D in cooperation with other firms. In the second stage the level of R&D investment is determined. Finally, firms...

Trading under limited pre-trade transparency becomes increasingly popular on financial markets. We provide first evidence on traders' use of (completely) hidden orders which might be placed even inside of the (displayed) bid-ask spread. Employing TotalView-ITCH data on order messages at NASDAQ,...

Identification of equations explaining a continuous variable, e.g., the length of sickness absence spells, by age, cohort and time (ACT), subject to their definitional identity is reconsidered. Various extensions of a linear equation to polynomials are explored. If no interactions between the...

We use a panel of Czech firms to enhance existing literature where the dependent variable is foreign ownership. In our estimation, we control for endogeneity and unobserved effects using standard methods complemented by tests for heterogenous Granger-causality. We also model foreign ownership as...

We study a nonlinear two-way fixed effects panel model that allows for unobserved individual heterogeneity in slopes (interacting with covariates) and (unknown) flexibly specified link function. The former is particularly relevant when the researcher is interested in the distributional causal...

This paper investigates the determinants of firm-sponsored training which result from the Acemoglu-Pischke model (APM) empirically using German firm-level data on apprenticeship training. Acemoglu and Pischke (1999a, 1999b) demonstrate that wage compression may encourage employers to offer and...

A distinctive feature of unemployment is that its incidence is far from being homogeneously distributed in the territory. Disparities in unemployment rates are not only observed between countries but also between regions within countries. The available evidence indicates that since the early 80s...

We analyze mobility in urban Mexico between three labor market states: working in the formal sector, working in the informal sector, and not working. We use a dynamic multinomial logit panel data model with random effects, explaining the labor market state of each individual during each time...

In countries with an ageing population, regional migration may accentuate local progress in demographic change. This paper investigates whether and to what extent diversity in ageing among urban neighbourhoods in Germany was reinforced by regional migration during the past two decades. The...