This paper uses a large language model to develop an ex-ante measure of the commercial potential of scientific findings. In addition to validating the measure against the typical holdout sample, we validate it externally against 1.) the progression of scientific findings through a major...

Starting from Robbins (1952), the literature on experimentation via multi-armed bandits has wed exploration and exploitation. Nonetheless, in many applications, agents' exploration and exploitation need not be intertwined: a policymaker may assess new policies different than the status quo; an...

More than 1,500 organizations and investors representing over $40 trillion in assets have committed to fossil fuel divestment to combat climate change. Will it work? This chapter explores whether divestment might induce green innovation, a critical component of transitioning to a cleaner...

In the approaching era of genomic medicine, the underrepresentation of minority populations in human genetics and genomics research has raised growing concerns regarding the distributive justice in the translation of biomedical innovations into human health across populations. Quantitative...

Subsidies and in-kind transfers give rise to negative fiscal externalities. However, internalizing negative fiscal externalities through taxation would undo the subsidy or in-kind transfer that caused them. Similarly, positive fiscal externalities cannot be internalized though government...

Operation Warp Speed (OWS) was a U.S. government-led program to accelerate the development, production, and administration of COVID-19 vaccines. The program cut the typical ten-year timeline needed to develop a new vaccine down to ten months and began vaccinating vulnerable populations within a...

Introduced as part of the War on Poverty, Community Health Centers (CHCs) deliver primary care to underserved populations by locating sliding-scale clinics in economically disadvantaged areas. We investigate how this policy affected infant health using the rollout of CHCs and a flexible event...

The safety nets in high-income countries before 1900 and in low-income countries today were based on savings and aid from extended family, friends, charities, churches, and small amounts from local governments. Mutual societies and eventually insurance companies offered insurance against lost...

We analyze the effect of Colombia's ambitious "Free Housing" program on children's educational outcomes. The program was generous, giving free housing to beneficiaries in desirable areas. We evaluate the program by leveraging housing lotteries and linking applicants to their children. We find...

Using friendship data from Facebook, we study the effects of three aspects of social capital on household financial behavior. We find that the most important measure of social capital in explaining stock market and saving participation is Economic Connectedness, defined as the fraction of one's...