This paper takes income distribution as a case study of the role of data in economics. After describing the transformation which has taken place with regard to the availability of data on income inequality, it discusses how the comparability of these estimates is brought into question by...

The IAB’s Sample of Integrated Labour Market Biographies (SIAB) and the Socio-Economic Panel (SOEP) are the two data sets most commonly used to analyze wage inequality in Germany. While the SIAB is based on administrative reports by employers to the social security system, the SOEP is a survey...