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The Effect of Computer-Assisted Learning on Students’ Long-Term Development

Nicola Bianchi, Yi Lu, Hong Song, Feb 17, 2021

We examine the effect of computer-assisted learning on students’ long-term development. We explore the implementation of the largest ed-tech intervention in the world to date, which connected China’s best teachers to more than 100 million rural students through satellite internet. Exposure to the program improved students’ academic achievement, labor performance, and computer usage for at least ten years after program implementation. These findings indicate...

Physician-Induced Demand: Evidence from China’s Drug Price Zero-Markup Policy

Hanming Fang, Xiaoyan Lei, Julie Shi, Xuejie Yi, Aug 11, 2021

We exploit the staggered rollout of China’s drug price zero-markup policy (ZMP) to study physician-induced demand in healthcare. Our results show that the drug expenses in the treatment hospitals dropped by 63 log points (47 percent) compared with those of the control group; however, the expenses for non-drug services were 28 log points (32 percent) higher in the treatment group than in the control group. Our results provide robust evidence for physician-induced demand.

School Enrollment Restriction on Migrant Children and Human Capital Losses

Zibin Huang, Nov 24, 2021

In 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.

A Summary of Retail Investors and Momentum

Jun Du, Dashan Huang, Jane Yu Liu, Yushui Shi, Avanidhar Subrahmanyam, Huacheng Zhang, Oct 26, 2022

We explore the link between momentum and retail investing via an identification strategy in China, where retail investors dominate. We propose that due to a round lot restriction, small retail investors are less likely to hold and trade stocks with high nominal prices, and find supporting evidence.

Shadow Banking in a Crisis: Evidence from Fintech During COVID-19

Zhengyang Bao, Difang Huang, Jul 14, 2021

We evaluate the performance of Chinese fintech and bank credit providers during COVID-19. Comparing samples of fintech and bank loan records across the pandemic outbreak, we find that fintech companies are more likely to expand credit access to new and financially constrained borrowers after the start of the pandemic. However, the delinquency rate of fintech loans triples after the outbreak, but there is no significant...