We design and conduct large-scale surveys and experiments in eleven European countries to examine the effect of the COVID-19 pandemic on social trust, reciprocity, solidarity as well as institutional trust. Using incentivized outcome questions on trust and solidarity towards fellow citizens,...

About 1.4 million refugees and irregular migrants arrived in Europe in 2015 and 2016. We model how refugees and irregular migrants are self-selected. Using unique datasets from the International Organization for Migration and Gallup World Polls, we provide the first large-scale evidence on...