The Earned Income Tax Credit (EITC) is the federal government’s largest cash assistance program for working families. This research aims to understand the extent to which the EITC affects black and white households differently. The empirical analysis shows that after the EITC expansion, single...

The spread of coronavirus disease 2019 (COVID-19) has caused school closures in most countries, affecting over 90% of the worlds student population. School closures can widen learning inequalities and disproportionately hurt vulnerable students. We collected data on the exam scores of university...

Triboelectric nanogenerators (TENG) have emerged as suitable devices that are suitable to harvest widely abundant and renewable blue energy. However, a major drawback in related deployments include the reliability of the system when operating in variable atmospheric conditions. To address this...

The design and performance prediction of efficient anticorrosion materials is a work full of value, novelty and challenges. In this work, the magnetic transition metal Mn was used as an electronic structure modifier, especially the double exchange effect of Mn3+ and Mn4+ mediated by the co-spin...

In this paper, 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...

We show that judicial independence can reduce local protectionism and foster cross-regional economic integration. We exploit a judicial independence reform in China with staggered roll-out since 2014. The reform removed local governments' control over local courts' financial and personnel...

We analyze the effects of exposure to industrial robots on labor markets and household behaviors, exploring longitudinal household data from China. We find that a one standard deviation increase in robot exposure led to a decline in labor force participation (-1%), employment (-7.5%), and hourly...