We study the use and economic impact of AI technologies. We propose a new measure of
firm-level AI investments using employee resumes. Our measure reveals a stark increase in …

Using a unique dataset from China, this paper shows that the intensity of epidemic disasters
during the country's last feudal period (1644–1895) promoted tourism businesses' …

We review the evidence linking Global Value Chains (GVCs) and productivity. GVCs are a
key feature of the world economy, with production increasingly fragmented across borders …

What are the implications of the dramatic fall in IT prices for aggregate technology? When
firm-level technologies are continuously differentiable, a factor price shock leads to (i) a …

In this paper, we offer a theory of opportunity underexploitation that explains how consumer
disadvantage is coupled to the entrepreneurial process such that market inefficiencies …

This chapter surveys recent advances in personnel economics. We begin by presenting
evidence showing substantial and persistent productivity variation among workers in the …

While there is strong evidence that more productive plants select into exporting, the literature
has struggled to identify export-related efficiency gains within plants. We show that this is …

Recent studies attribute the rise in wage inequality primarily to widening pay disparities
between rather than within firms. I develop a novel theory to quantitatively explain this fact …

This paper studies adjustments in labor demand of firms exposed to the recent China-US
trade war. Our analysis leverages information from a Chinese online job board and a firm …

This paper develops a new method to study how workers' career and wage profiles are
shaped by internal labor markets (ILM) and job hierarchies in firms. We tackle the …