This article examines a model of competition between two types of health insurer: Health Maintenance Organizations (HMOs) and nonintegrated insurers. HMOs vertically integrate health care providers and pay them at a competitive price, while nonintegrated health insurers work as indemnity plans...

This study constructs a model of anticompetitive exclusive contracts in the presence of complementary inputs. A downstream firm transforms multiple complementary inputs into final products. When complementary input suppliers have market power, upstream competition within a given input market...

This paper provides an economic analysis of recent vertical and horizontal mergers in the U.S. industry for audiovisual media content, including the AT&T-Time Warner and the Disney-Fox mergers. Using a theory-driven approach, we examine economic effects of these types of mergers on market...

The importance of economics to the analysis and enforcement of competition policy and law has increased tremendously in the developed market economies in the past forty years. In younger and developing market economies, competition law itself has a history of twenty to twenty-five years at most...

We study upstream horizontal mergers and their potential efficiency gains. We show that an upstream horizontal merger can give rise to two efficiency-enhancing effects when firms trade through two-part tariffs. It increases R&D investments and decreases wholesale prices when downstream...

This paper constructs a model of anticompetitive exclusive dealing in the presence of multiple entrants. Unlike the single-entrant model in previous literature, an entrant competes not only with the incumbent to deal with buyers but also with other entrants. The competition among entrants then...

The EU competition policy in regard to vertical restraints is mainly based upon neoclassical efficiencyoriented reasonings, leading to a neglect of the innovation dimension. This article analyses to what extent evolutionary theories of competition and innovation economics can be used to derive...

In The Antitrust Paradox, Robert Bork discusses policy responses to naked and ancillary price fixing as well as vertical restraints. Empirical research finds that vertical restraints are generally welfare-enhancing. We examine cartels that used vertical restraints to support collusion. We find...

We explore the supply chain problem of a downstream durable goods monopolist, who chooses one of the following trading modes: an exclusive supply chain with an incumbent supplier or an open supply chain, allowing the monopolist to trade with a new efficient entrant in the future. The predicted...

We construct a two-period model of the supply chain's openness in a durable goods market by introducing two marketing modes: leasing and selling. Given a marketing mode, at the beginning of the first period, an incumbent supplier and the downstream monopolist choose one of the trading modes: (i)...