Increased competition from the internet has raised concerns about the quality of prescription drugs sold online. Given the pressure from the Department of Justice, Google agreed to ban pharmacies not certified by the National Association of Boards of Pharmacy (NABP) from sponsored search...

Search frictions can explain why the "law of one price" fails in retail markets and why even firms selling commodity products have pricing power. In online commerce, physical search costs are low, yet price dispersion is common. We use browsing data from eBay to estimate a model of consumer...

This paper estimates the magnitude and distribution of surplus from the knowledge worker gig economy using data from an online labor market. Labor demand elasticities determine workers’ wages, and buyers’ past market experience shapes both their job posting frequency and hiring rates. We...

Early crowdfunding platforms were based on a premise of disintermediation from professional investors, and relied on the ‘wisdom of the crowd' to screen high quality projects. This becomes problematic when equity is involved, as the degree of asymmetric information between entrepreneurs...

Digital labor markets are rapidly expanding and connecting companies and contractors on a global basis. We review the environment in which these markets take root, the micro- and macro-level studies of their operations, their ongoing evolution and recent trends, and perspectives for undertaking...

As technology platforms have created new markets and new ways of acquiring information, economists have come to play an increasingly central role in tech companies – tackling problems such as platform design, strategy, pricing, and policy. Over the past five years, hundreds of PhD economists...

Online contract labor globalizes traditionally local labor markets, with platforms that enable employers, most of whom are in high-income countries, to more easily outsource tasks to contractors, primarily located in low-income countries. This market is growing rapidly; we provide descriptive...

A long literature has examined the effects of the price of giving - that is, the amount an in-dividual must give for one dollar to accrue to the charitable activity itself - on donative behavior. We use data from DonorsChoose.org, an online platform linking teachers with prospective donors, that...

The theoretical literature on platforms and network effects predicts that the initial growth and takeoff of a platform crucially depends on the market’s expectations of the future installed base. This paper tests this claim, reporting on a field experiment in which invitations to join a newly...

Digital platforms are increasingly the subject of regulatory scrutiny. In comparison to multiple competitors, a single platform may increase consumer welfare if network effects are large or may decrease welfare due to higher prices or reduction in platform variety. We study the net effect of...