This paper estimates the rate of intergenerational social mobility of status in Late Imperial, Republican and Communist China by examining the changing social status of originally elite surnames over time. It finds much lower rates of mobility in all eras than previous studies have suggested,...

This paper investigates the impact of the abolition of the civil service exam on local governance in early twentieth-century China. Before the abolition, local elites collected surtaxes that financed local public goods, but they were supervised by the state and could lose candidacy for higher...

This paper uses the all-payer claims database (APCD) for Rhode Island to study three questions about the use of medication-assisted treatment (MAT) for opioid use disorder (OUD): (1) Does MAT reduce the risk of opioid overdose; (2) are there systematic differences in the uptake of MAT by...

How did the telegraph improve market integration in late imperial China? We exploit differences in the exogenous timing of telegraph construction in different prefectures from 1870 to 1911. The empirical results show that the arrival of the telegraph within a prefecture pair reduced the ratio of...