This paper examines the effects of a massive salt iodization program on human capital formation of school-aged children in China. Exploiting province and time variation we find strong positive effects on cognition for girls and no effects for boys. For non-cognitive skills we find the opposite....

This paper examines the effects of a massive salt iodization program on human capital formation of school-aged children in China. Exploiting province and time variation, we find a strong positive impact on cognition for girls and no effects for boys. For non-cognitive skills, we find the...

We study the staggered introduction of a generative AI-based conversational assistant using data from 5,179 customer support agents. Access to the tool increases productivity, as measured by issues resolved per hour, by 14 percent on average, with the greatest impact on novice and low-skilled...