British regions are becoming increasingly culturally diverse, with migration as the main driver. Does this diversity benefit local economies? This research examines the impact of cultural diversity on the entrepreneurial performance of UK regions. We focus on two largely overlooked factors, the...

We introduce firm and worker heterogeneity into a model of innovation-driven endogenous growth. Individuals who differ in ability sort into either a research sector or a manufacturing sector that produces differentiated goods. Each research project generates a new variety of the differentiated...

The paper provides a first structural-estimation-based assessment of an influential hypothesis that export pioneers are too few relative to social optimum due to knowledge spillover in new market explorations. Such market failure requires two inequalities to hold simultaneously: the discovery...

This paper first draws on a unique data set, hojok (household registers), to estimate numeracy levels in Korea from the period 1550–1630. We add evidence from Japan and China from the early modern period until 1800 to obtain a human capital estimate for East Asia. We find that numeracy was...

The paper discusses economic theories of harm for anti-competitive margin squeeze by unregulated and regulated vertically integrated firms. We review both predation and foreclosure theories, as well as the mere exploitation of upstream market power. We show that foreclosure provides an...

We develop a method to estimate which side will win a civil war. The key insight we deliver is that, for typical sovereign debt contracts, the probability of debt repayment will equal the probability of victory in a civil war. We test our predictor for standard outcomes in civil wars, including...

Why did substantial parts of Europe abandon the institutionalized churches around 1900? Empirical studies using modern data mostly contradict the traditional view that education was a leading source of the seismic social phenomenon of secularization. We construct a unique panel dataset of...

We derive a theoretical model of effort in the presence of career concern based on the multi-unit all-pay auction, and closely inspired by the Italian academic market. In this model, the number of applicants, the number of new posts, and the relative importance of the determinants of promotion...

We identify US defense news shocks as shocks that best explain future movements in defense spending over a five-year horizon and are orthogonal to current defense spending. Our identified shocks are strongly correlated with the Ramey (2011) news shocks, but explain a larger share of...

Can a competitive market implement an ideal search engine? To address this question, we construct a two-sided market model in which consumers with limited, idiosyncratic vocabulary use keywords to search for their desired products. Firms get access to a keyword if they pay its competitive...