The chapter has ten sections, which cover the theory of two-sided markets and related
empirical work. Section 1 introduces the reader to the literature. Section 2 covers the case of …

Developing country megacities suffer from severe road traffic congestion, yet the level of
congestion is not a direct measure of equilibrium inefficiency. I study the peak-hour traffic …

The value of time determines relative prices of goods and services, investments, productivity,
economic growth, and measurements of income inequality. Economists in the 1960s began …

I estimate the welfare and distributional impact of the home-sharing platform Airbnb on New
York City renters. I develop a structural model of an integrated housing market with two …

I study the impact of transportation network companies (TNC) on traffic delays using a
natural experiment created by the abrupt departure of Uber and Lyft from Austin, Texas …

We show how to use commuting flows to infer the spatial distribution of income within a city.
A simple workplace choice model predicts a gravity equation for commuting flows whose …

This paper studies the effects of the EU's General Data Protection Regulation (GDPR) on the
ability of firms to collect consumer data, identify consumers over time, accrue revenue via …

This paper studies platform competition in the app-based transportation industry. I present a
model of competing platforms in transport equilibrium, characterizing analytically the profit …

ABSTRACT A key reason for the existence of cities are the externalities created when
people cluster together in close proximity. During Covid, such interactions came with health …

We characterize optimal urban transportation policies in the presence of congestion and
environmental externalities and evaluate their welfare and distributional effects. We present …