Negative emotions increase unhealthy eating: Evidence from the Wuhan lockdown during COVID-19.

This paper studies how negative emotions like stress, anxiety, and boredom can affect unhealthy food consumption. Using the Wuhan lockdown as an external shock, we examine the changes in food consumption in a city that was not in lockdown. We applied the difference-in-differences method to a large scanner dataset from a retail monopoly in China.

Collagen-related gene expression level predicts the prognosis and immune therapy response.

Background: Gastric cancer patients responded differently to the same treatment strategy and had various prognoses for the lack of biomarkers to guide the therapy choice.

Methods: RNA data of a local gastric cancer cohort with 103 patients were processed and used to explore potential treatment guiding factors. Cluster analysis was performed by non-negative matrix factorization.

Adding Up Peer Beliefs: Experimental and Field Evidence on the Effect of Peer Influence on Math Performance.

We studied how gendered beliefs about intellectual abilities transmit through peers and differentially impact girls' academic performance relative to boys'. Study 1 ( = 8,029; 208 classrooms) exploited randomly assigned variation in the proportion of a child's middle school classmates who believe that boys are innately better than girls at learning math. An increase in exposure to peers who report this belief generated losses for girls and gains for boys in math performance.

Assessing inequality in the school closure response to COVID-19.

The spread of coronavirus disease 2019 (COVID-19) has caused school closures in most countries, affecting over 90% of the world's student population. School closures can widen learning inequalities and disproportionately hurt vulnerable students. We collected data on the exam scores of university applicants in China before and after a two-month period of school closure.