My current research focuses on three broad themes: (1) the transition from school to work, (2) inequality in science, and (3) inequality in the labor market.
School-to-work linkages
I study school-to-work linkages in a comparative perspective. With colleagues (Tom DiPrete, Christina Ciocca, and Herman van de Werfhorst), I developed a new method to analyze school-to-work linkages. By using segregation techniques, we are able to provide a detailed description of how specific educational degrees connect to occupations, and how this is different across three institutionally diverse countries (France, Germany, and the United States). One paper, that was recently published in ASR, investigates how the “linkage strength” of a specific educational degree affects the returns to this degree. Another paper focuses on the historical changes in linkage strength in France and Germany (with Benjamin Elbers and Tom DiPrete). A final project focuses on how the effects of linkage strength vary across the life course (with Andrea Forster and Jesper Rözer).
Inequality in science
Together with Mathijs de Vaan and Arnout van de Rijt, I analyze cumulative advantage in obtaining science funding in the Netherlands. I have created a harmonized dataset containing all data from the applications to the IRIS scheme of the Netherlands’ Scientific Organization’s (NWO)  for 2000-2015. In a first paper that was published in PNAS we have investigate to what extent there is a Matthew effect in science funding. A second paper that is currently under review focuses on gender inequality in science funding. 
Occupations and wage inequality
In 2015 I received a Veni grant to study occupations and wage inequality in Europe. Several studies show that the growth in wage inequality in the United States and the United Kingdom took place between occupations, but we do not know yet to what extent this is also the case for Europe. Furthermore, we have only very little knowledge on why some occupations increasingly pay more than others. In my Veni-project I will work on these questions. A brief (non-scientific) outline of my project can be found here.
I have already worked on the relation between occupations and wage inequality. In existing work I  have studied how occupational closure affects mean occupational wages in Germany and the UK (with Kim Weeden). A more recent project focuses on Norway, and studies how between-occupation wage inequality is explained by institutional barriers to access occupations (with Ida Drange, for the project website click here). I have furthermore worked on occupational polarization in the Netherlands, and study how occupational job tasks affect wage inequality in the UK (with Mark Williams).