This is a survey of the economic principles that underlie antitrust law and how those principles relate to competition policy. We address four core subject areas: market power, collusion, mergers between competitors, and monopolization. In each area, we select the most relevant portions of...

In this paper we aim, first, to examine how an economy's financial development affects the welfare gains from trade and, second, to uncover how large firms threaten to suppress these gains, through the exertion of market power and their confirmed preferential access to liquidity. To this...

We develop a two-stage game in which competing airlines first choose the networks of markets to serve in the first stage before competing in price in the second stage. Spillovers in entry decisions across markets are allowed, which accrue on the demand, marginal cost, and fixed cost sides. We...