We use a credible regression discontinuity design to estimate causal education effects. Pupils in the Swiss education system had to pass a centrally organized exam that classified them into different levels of secondary school, and that ultimately determined their educational degree. A major...

We study the impact of naturalization on the long-term social integration of immigrants into the host country society. Despite ongoing debates about citizenship policy, we lack reliable evidence that isolates the causal effect of naturalization from the non-random selection into naturalization....

Although Europe has experienced unprecedented numbers of refugee arrivals in recent years, there exists almost no causal evidence regarding the impact of the refugee crisis on natives' attitudes, policy preferences, and political engagement. We exploit a natural experiment in the Aegean Sea,...

What effect does using open (as opposed to closed) lists in proportional representation elections have on party performance and the quality of candidate selection? We provide novel evidence by studying local elections in Colombia, where parties have discretion to field either open or closed...

Instrumental-variable (IV) estimation is an essential method for applied researchers across the social and behavioral sciences who analyze randomized control trials marred by non-compliance or leverage partially exogenous treatment variation in observational studies. The potential outcomes...

With international migration at a record high, a burgeoning literature has explored the drivers of public attitudes toward migrants. However, most studies to date have focused on developed countries, which have relatively fewer migrants and more capacity to absorb them. We address this sample...

We review and interpret research on the economic and political effects of receiving asylum seekers and refugees in developed countries, with a particular focus on the 2015 European refugee protection crisis and its aftermath. In the first part of the paper, we examine the consequences of...