South Korea publicly disclosed detailed location information of individuals that tested positive for COVID-19. We quantify the effect of public disclosure on the transmission of the virus and economic losses in Seoul. The change in commuting patterns due to public disclosure lowers the number of...

Cross-country price indexes are crucial to compare living standards between countries and to measure global inequality. An accurate measurement of these price indexes has proven to be a difficult task because of the lack of accurate data on the consumption patterns of different countries. In...

This paper studies the potential of a cryptocurrency to become a medium of exchange. We use evidence from a natural experiment: In September 2021, El Salvador became the first country in the world to make bitcoin legal tender, and all economic agents were required to accept bitcoin for all...

We use three quasi-natural experiments in Mexico and one in Panama to estimate the effects of having the option to pay with cash on Uber rides. The ability to pay in cash affects the demand for rides, which is reflected in large changes in the total number of trips, fares, miles, and number of...

This paper develops a dynamic model of technology adoption featuring strategic complementarities: the benefits of usage increase with the number of adopters. We study the diffusion of new means of payments, where such complementarities are pervasive. We show that complementarities give rise to...

This paper studies the potential of a cryptocurrency to become a medium of exchange. We use evidence from a natural experiment: In September 2021, El Salvador became the first country in the world to make bitcoin legal tender, and all economic agents were required to accept bitcoin for all...