The original motivations of antitrust suggest an alternative remedy for market power: changes to corporate governance to include stakeholders who are subject to this power. In contrast to structural and behavioral remedies, “stakeholder remedies,” as we call them, have several desirable...

In an economy with indivisible goods, a continuum of agents and quasilinear utility, we show that equilibrium exists regardless of the nature of agents' preferences over bundles. This contrasts with results for economies with a finite number of agents, which require restrictions on preferences...

Marschak (1953) suggested that applied research should begin by determining the minimal set of assumptions and data needed to make a prediction of interest. Standard identification analyses correspond poorly to this search, as they have either stringent data (local average treatment effects/IV...

The Gulf Cooperation Council (GCC) countries accept massive numbers of migrants from poor countries and pay wages that dramatically improve over outside options but are meagre by the standards of natives. As such they do dramatically more per capita to reduce global inequality than do the...

A group of N individuals must choose between two collective alternatives. Under Quadratic Voting (QV), agents buy votes in favor of their preferred alternative from a clearing house, paying the square of the number of votes purchased; the sum of all votes purchased determines the outcome. We...

Selection markets, like insurance and finance, where the value of customers depends on their identity, create fundamental challenges for competition policy. Competition is often harmful in these markets either by creating socially excessive supply or leading to degradation of product quality....

Financial regulators should use cost-benefit analysis (CBA) to evaluate financial regulations. Finance is an ideal domain for CBA because the direct costs and benefits of financial activity can be easily monetized, and a huge amount of data exists for calculating the relevant valuations. John...

I document empirically that the field of financial economics has been mostly concerned with positive issues (largely related to “informational efficiency” of prices) rather than allocative efficiency relative to the field of industrial organization, which I take as a comparison point. I...