In an online experiment with a representative US sample (N=12,960) we show that increasing the salience of an economic or cultural conflict without providing any news boosts disagreement on a range of political issues by 8-35%. The data support two key predictions of the Bonomi et al. (2021)...

Innovation drives China's high-quality economic development, with corporate R&D investment being key to innovation. Using data from Chinese A-share non-financial listed firms (2010-2022), this study defines peer firms using a four-dimensional dynamic matching method of "year-industry-ownership...

We apply a novel approach to estimate the effects of exposure to peers with different attributes by using the predetermined leave-own-out attributes of all classmates in randomly assigned classes. This strategy allows a behavioural interpretation of the peer effect over and above the pure...

This paper studies whether alternative integration-policy framings affect cooperation in ethnically diverse groups. We conduct a lab-in-the-field experiment with 390 adolescents in mixed classrooms in Italy. Within each class, students were randomly assigned to small groups that received either...

Child soldiering has been identified as one of the most prevalent human rights violations perpetrated by rebels. The aim of this research is to elucidate the potential influence of third parties, external supporters, on child soldiering by rebels. The research hypothesises that rebel's...

This study documents a new fact about educational production: Students' relative standing in noncognitive skills has lasting effects on educational trajectories that are distinct from those of absolute skill levels and cognitive achievement. Using administrative data covering the universe of...

Is income inequality in the United States primarily driven by disparities between ethnic groups or within them? The evidence reveals a striking pattern: 96% of U.S. income inequality arises from variation within groups sharing common ancestral origins, far overshadowing the comparatively small...