We study the efficiency of oligopoly equilibria in a model where firms compete over capacities and prices. The motivating example is a communication network where service providers invest in capacities and then compete in prices. Our model economy corresponds to a two-stage game. First, firms...

We study the efficiency of oligopoly equilibria in congested markets. The motivating examples are the allocation of network flows in a communication network or of traffic in a transportation network. We show that increasing competition among oligopolists can reduce efficiency, measured as the...

We argue that the US tax system is biased against labor and in favor of capital and has become more so in recent years. As a consequence, it has promoted inefficiently high levels of automation. Moving from the US tax system in the 2010s to optimal taxation of capital and labor would raise...

This chapter reviews recent advances in the task model and shows how this framework can be put to work to understand the major labor market trends of the last several decades. Production in each industry necessitates the completion of a range of tasks, which can be allocated to workers of...

We investigate the short- and long-term effects of a natural gas boom in an economy where energy can be produced with coal, natural gas, or clean sources and the direction of technology is endogenous. In the short run, a natural gas boom reduces carbon emissions by inducing substitution away...

We present new and rich evidence on intersectional discrimination in labor markets, focusing on wages in the traditional residual wage differential approach to discrimination. We interpret "intersectional discrimination" in the framework of interactions, in which discrimination along two...

We provide a comprehensive analysis of the effects of minimum wages on blacks, and on the relative impacts on blacks vs. whites. We study not only teenagers - the focus of much of the minimum wage-employment literature - but also other low-skill groups. We focus primarily on employment, which...

We estimate the causal effect of attorney involvement on the indemnity benefits workers receive after their injuries. To address the fundamental challenge that claims and injuries may differ on unmeasured dimensions that affect both attorney involvement and benefits received, we propose and use...

Place-based programs aim to encourage economic and community development in defined geographic areas. They frequently offer tax incentives, grants, loans, or regulatory relief to private or non-profit entities for investing in specific communities. Funding can support a range of activities,...