References

Cao, Jiarui, Yiqing Xu, and Chuanchuan Zhang. 2022. “Clans and Calamity: How Social Capital Saved Lives During China’s Great Famine.” Journal of Development Economics 157: 102865.

Xu, Yiqing, Anqi Zhao, and Peng Ding. 2026. “Factorial Difference-in-Differences.” Journal of the American Statistical Association, no. just-accepted: 1–23.