Difference-in-difference estimation is a popular tool to gauge the effects of economic policies. In recent years, many papers have applied this tool to the German deregulation of the crafts sector in 2004 to draw lessons regarding the economic effects of occupational licensing. However, a...

We investigate the finite sample performance of causal machine learning estimators for heterogeneous causal effects at different aggregation levels. We employ an Empirical Monte Carlo Study that relies on arguably realistic data generation processes (DGPs) based on actual data. We consider 24...

Panel surveys offer a valuable tool for researchers to explore the dynamics underlying individual and household behaviours. The Achilles heel of panel data is attrition. This paper examines the determinants and implications of attrition in the first two waves of South Africa's National Income...