This article explains the economics and antitrust of bundling. I first show that popular arguments such as demand complementarities, economies of scope, and price discrimination are not sufficient. I then detail potentially anticompetitive factors such as leverage and opacity. I then use simple...

In a companion note (Antitrust vs. Sector-specific Regulation in Telecom: What Works Best?), we argued that while the full liberalization of telecommunications markets provides scope for relying to a large extent on general antitrust rules and institutions as instruments of economic regulation,...

We here want to analyze how the imperfect competition mark-up and pass-through are transmitted through the production chain and how they change, as a function of the number of firms existing at each production stage. In order to have an analytical closed form solution, we use the standard linear...

When a durable good of uncertain quality is introduced to the market, some consumers strategically delay their buying to the next period with the hope of learning the unknown quality. We analyze the monopolist's pricing strategies when consumers have strategic delay incentives. We show when the...

We examine an infinite horizon model of quality growth in a durable goods monopoly market. The monopolist generates new quality improvements over time and can sell any available qualities, in any desired bundles, at each point in time. Consumers are identical and for a quality improvement to...

When a durable good of uncertain quality is introduced to the market, some consumers strategically delay their buying to the next period with the hope of learning the unknown quality. We analyze the monopolist's pricing and "waiting" strategies when consumers have strategic delay incentives. We...

A durable good monopolist faces a continuum of heterogeneous customers who make purchase decisions by comparing present and expected price-quality offers. The monopolist designs a sequence of price-quality menus to segment the market. We consider the Markov Perfect Equilibrium (MPE) of a game...

Using a Markov-perfect equilibrium model, we show that the use of customer data to practice intertemporal price discrimination will improve monopoly profit if and only if information precision is higher than a certain threshold level. This U-shaped relationship lends support to a popular view...

A monopolist producing vertically differentiated durable goods can offer in each period a sequence of price-quality menus to segment the market. We show that, contrary to the Coase conjecture for the homogeneous durable good monopoly, thanks to the ability to produce differentiated durable...

We examine an infinite horizon model of quality growth in a durable goods monopoly market. The monopolist generates new quality improvements over time and can sell any available qualities, in any desired bundles, at each point in time. Consumers are identical and for a quality improvement to...