We study the influence of agricultural labor intensity on individualism across U.S. counties. To measure historical labor intensity in agriculture we combine data on crop-specific labor requirements and county-specific crop mix around 1900. To address endogeneity we exploit climate-induced...

U.S. agriculture was transformed during the 20th century by waves of innovation with mechanical, biological, chemical, and information technologies. Compared with a few decades ago, today's agriculture is much less labor intensive and farms are much larger and more specialized, supplying a...

Around 1875 the U.S. had none of the world's leading research universities; today, it accounts for the majority of the top-ranked. Many observers cite events surrounding World War II as the source of this reversal. We present evidence that U.S. research universities had surpassed most countries'...

We use machine learning to analyze minute-by-minute Bloomberg online status data and study how the effort provision of top executives in public corporations affects firm value. While executives likely spend most of their time doing other activities, Bloomberg usage data allows us to characterize...

Dual-class common stock allows for the separation of voting rights and cash flow rights across the different classes of equity. We construct a large sample of dual-class firms in the United States and analyze the relationships of insider's cash flow rights and voting rights with firm value,...

We introduce a model of the admissions process based upon standard agency theory and explore its implications with economics PhD admissions data from 2013-2019. We show that a subjective score that aggregates subjective ratings and recommendation letter features plays a more important role in...

Health insurers often tie payments to providers' quality of care. Although payers do this to elicit more effort from providers, some providers may game the system by avoiding patients who would cause their quality scores to fall. We use annual variation in the criteria for Medicare's Quality...

Economic activity in developing countries is labor-intensive, low-scale, and family run, with substantial family managerial time spent supervising hired labor. We use a randomized control trial that subsidizes access to rental equipment markets to study the impact of the adoption of mechanized...

Many agricultural and environmental technologies require large upfront investments in exchange for longer-term benefits. This time profile of costs and benefits makes adoption particularly sensitive to liquidity and credit constraints, which are prevalent in low-income settings. We test the...

This paper analyzes the role of social networks in the diffusion of knowledge and adoption of cultivation techniques, from trainees to the wider community, in the context of an extension project in Guinea-Bissau. In order to test for social learning, we exploit a detailed census of households...