How Accurate are German Work-time Data? A Comparison of Time-diary Reports and Stylized Estimates

Abstract

This study compares work time data collected by the German Time Use Survey (GTUS) using the diary method with stylized work time estimates from the GTUS, the German Socio-Economic Panel, and the German Microcensus. Although on average the differences between the time-diary data and the interview data is not large, our results show that significant deviations exist between these two techniques for certain types of individuals, especially those with long working hours and flexible work schedules. We also show that stylized work time estimates have insufficient variation to reproduce a true picture of working hours.