Was a discussant at an excellent @AEAjournals session on using experimental economics methods for explaining variation in institutions and socialization across countries. It was great to see that the standard results from public goods and competition experiments replicate robustly across 60+ countries. But also that variation in contributions tracked the economic and institutional conditions across and within countries. Really shows that the power of these tools goes beyond the first-wave experiments that tested theory. They can now be used to study a wide array of fundamental questions, eg the role of inequality in competitiveness in the population.