This paper examines the case for randomized controlled trials in economics. I revisit my previous paper "Randomization and Social Policy Evaluation" and update its message. I present a brief summary of the history of randomization in economics. I identify two waves of enthusiasm for the method...

In countries with strong employment protection laws it is often considered to be unwise to hire a woman in childbearing age because she might get pregnant. However, such labour demand e ects of job protection measures related to maternity leave are often rather anecdotal. To provide analytical...

We present a new type of field experiment to investigate ethnic prejudice in the workplace. Our design allows us to study how potential discriminators respond to changes in the cost of discrimination. We find that ethnic discrimination is common but remarkably responsive to the "price of...

Firms often use social networks to find workers, limiting the pool of potential applicants. We conduct a field experiment subsidizing firms' formal vacancy posting. The subsidies increase non-network employee search and shift vacancies towards high-skilled positions. Post-treatment, firms...

Based on a correspondence experiment covering 3,124 fictitious job applications, the paper identifies and quantifies duration dependence in Germany, with a particular emphasis on company and vacancy characteristics as potential determinants. The experiment reveals that duration dependence...

Based on a correspondence experiment covering 3,124 fictitious job applications, the paper identifies and quantifies duration dependence in Germany, with a particular emphasis on company and vacancy characteristics as potential determinants. The experiment reveals that duration dependence...

Based on a correspondence experiment covering 3,124 fictitious job applications, the paper identifies and quantifies duration dependence in Germany, with a particular emphasis on company and vacancy characteristics as potential determinants. The experiment reveals that duration dependence...

This field experiment explores whether single and married female job candidates' un/employment histories differentially affect their chances of obtaining interviews through China's Internet job boards. It also considers whether firms' discrimination against, and/or preference for, candidates who...