Rechtspraak: Nieuw onderzoek wijst op vooroordelen binnen de rechtspraak: in de vier weken na de moord op advocaat Wiersum straften rechters verdachten met een Marokkaanse achtergrond zwaarder dan anderen.

Abstract. This paper presents new causal evidence on the “power” of oral contraceptives in shaping women's lives, leveraging the 1970 liberalization of the Pill for minors in the Netherlands and demand- and supply-side religious preferences that affected Pill take-up. We analyze administrative data to demonstrate that, after Pill liberalization, minors from less conservative areas were more likely to delay fertility/marriage and to accumulate human capital in the long run. We then show how these large effects were eliminated for women facing a higher share of gatekeepers—general practitioners and pharmacists—who were opposed to providing the Pill on religious grounds.

(Forthcoming Article) - Decision-makers can exhibit biases when they overemphasize particularly salient features under limited attention. We exploit a sudden salience shock involving individuals of Mo...

Welcome to my website! I am Professor of Labour Economics at the Erasmus School of Economics in Rotterdam. I have research affiliations at: TI, IZA, CEPR, and CESifo. My full CV is here. My main...

Are you passionate about doing research on skills, health, education, and the labour market? Are you a social scientist, economist, sociologist, or health scientist with strong quantitative skills? Do...

TRIBUNE. Alimentée tant par certains médias que par certains acteurs politiques, cette idée tenace relève du mythe. A l’inverse, les mesures qui criminalisent les immigrés en situation irrégulière ou ...

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Is there a trade-off between inflation and unemployment? Will artificial intelligence replace our jobs? How should the tax system be designed? And why do women still earn less money than men? Economic...

Anti-immigration parties are pushing policies that are hostile or indifferent towards science.

Date: November 19, 2024

Our new analysis shows that studies consistently find no causal link between immigration and increased crime across a variety of countries.

Previous studies have examined how cash transfers affect children’s education and health regardless of sibship size. I examine the long-run consequences of a Dutch reform that gradually curtailed chil...

(Winter 2024) - The association between immigration and crime has long been a subject of debate, and only recently have we encountered systematic empirical evidence on this issue. Data shows that immigrants, often younger, male, and less educated compared to natives, are disproportionately represented among offenders in numerous host countries. However, existing research, inclusive of our analysis of new international data, consistently indicates that immigration does not significantly impact local crime rates in these countries. Furthermore, recent studies underscore that obtaining legal status diminishes immigrants' involvement in criminal activities. Finally, we discuss potential explanations for the apparent incongruity between immigrants' overrepresentation among offenders and the null effect of immigration on crime rates.