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Leverage-Induced Fire Sales and Stock Market Crashes
Jiangze Bian, Zhiguo He, Kelly Shue, Hao Zhou, Dec 03, 2018The authors find that margin investors heavily sell their holdings when their account-level leverage edges toward the maximum leverage limits. Stocks that are disproportionately held by accounts close to leverage limits experience high selling pressure and abnormal price declines that subsequently reverse over the next 40 trading days. Unregulated shadow-financed margin accounts contributed more to the market crash even though these shadow accounts had higher leverage limits and held a smaller fraction of market assets.
School Enrollment Restriction on Migrant Children and Human Capital Losses
Zibin Huang, Nov 24, 2021In China, migrant children are at a disadvantaged and sometimes cannot enroll in public schools in migration destinations due to policy restrictions. Some migrant workers then have to leave their children behind in their hometowns, which causes the left-behind children problem. This study finds that if the enrollment restriction on migrant children is relaxed, migration of parents and children will increase, and the average human capital in the society will also increase. Low-skill families from small cities benefit most.
The Long-term Persistence of Informal Finance in China
Jinyan Hu, Chicheng Ma, Bo Zhang, Jan 24, 2018By using data on 137 counties in north China, we find that the density of financial institutions (Qianzhuang and Diandang) in the late Qing period has a significant positive effect on the number and total assets of small loan companies, a dominant institution of informal finance today. The persistent effect of historical financial institutions can be explained by Confucian culture, which instills integrity, lineage solidarity and acquaintance networks.
In-Consumption Social Listening with Moment-to-Moment Unstructured Data
Qiang Zhang, Wenbo Wang, Yuxin Chen, Jan 03, 2019Major video and live streaming platforms in China have recently introduced a live commenting feature that allows viewers to post comments in real time during video content consumption. Building on the rich live comment data, this research proposes a novel approach for in-consumption social listening to extract live consumption experience. The approach is demonstrated in the context of online movie watching...
China’s War on Pollution: A Review of Evidence from the First Five Years
Michael Greenstone, Guojun He, Shanjun Li, Eric Zou, Jun 30, 2021The decade from 2010 to 2019 marked a significant turning point in China’s approach to environmental regulation and pollution. This review article examines recent trends in air and water quality, with a focus on the five years following the Chinese government’s announcement of its “war on pollution” in 2014. It also summarizes the emerging literature that has taken advantage of recent improvements in data availability and accuracy to understand the social, economic, and health impacts of environmental pollution in China.
