The diffusion of social media coincided with a worsening of mental health conditions among adolescents and young adults in the United States, giving rise to speculation that social media might be detrimental to mental health. In this paper, we provide the first quasi-experimental estimates of...

The diffusion of social media coincided with a worsening of mental health conditions among adolescents and young adults in the United States, giving rise to speculation that social media might be detrimental to mental health. In this paper, we provide quasi-experimental estimates of the impact...

The diffusion of social media coincided with a worsening of mental health conditions among adolescents and young adults in the United States, giving rise to speculation that social media might be detrimental to mental health. In this paper, we provide the first quasi-experimental estimates of...

In this paper, we describe how socio-economic background and political leaning are related to how U.S. residents look for information on COVID-19. Using representative survey data from 2,280 U.S. internet users, collected in fall 2020, we examine how factors, such as age, gender, race, income,...

This policy brief reports findings from two nationally representative online surveys that were conducted in the United States (N=2,280) and in the United Kingdom (N=2,000) in October and November 2020 to explore the factors that influence the willingness to be vaccinated against Covid-19. The...

This paper develops and estimates a structural model of two-sided markets with durable platform intermediaries and affiliated products. It models buyers' purchase decisions of plat- forms and affiliated products and sellers' decisions of price-setting and entry, accounting for the dynamic...

We study the impact of expert reviews on the demand for HIV treatments. A novel feature of our study is that we observe two reviews for each HIV drug and focus attention on consumer responses when experts disagree. Reviews are provided by both a doctor and an activist in the HIV lifestyle...

We estimate whether consumers respond to local energy costs when purchasing appliances. Using a dataset from an appliance retailer, we compare demand responsiveness to a measure of energy costs that varies with local energy prices versus purchase prices. We strongly reject that consumers are...

Publishers produce books in hardcover and paperback versions with different prices and time of market introduction. Analysis of detailed book-level data reveals that (i) price-cost differentials cannot be explained by cost differences, making this an example of quality discrimination; (ii)...

Publishers produce books in hardcover and paperback versions with different prices and time of market introduction. Analysis of detailed book-level data reveals that (i) market introduction time has a strong effect on sales, suggesting that time is the crucial dimension of discrimination; (ii)...