I investigate how an incumbent firm deters entry by crowding the market, even when the incumbent can withdraw its stores in response to entry. In a two-location model, Judd (1985) shows such spatial entry deterrence is not credible. In contrast, I demonstrate spatial preemption can be credibly...

In a contestable market the possibility of "hit-and-run" entry prevents the price from rising above average cost. A contestable natural monopoly earns zero profits despite economies of scale. We show that informational imperfections can also result in a single firm serving the entire market with...

This paper questions whether competition can replace sector-specific regulation of mobile telecommunications. We show that the monopolistic outcome may prevail independently of market concentration when access prices are determined in bilateral negotiations. A lighthanded regulatory policy can...

Investments in Generating Capacities between a monopolist and two competing firms are compared where the firms invest in their capacity and fix the retail price while electricity demand is uncertain. A unit price auction determines the wholesale electricity price when the firms compete. They...

I propose a general power index in games. The power of an agent over an outcome is understood as the equilibrium effect on the outcome of variations in the agent’s preferences. I show that the new index, ∆, has the following properties: (i) classic measures of freedom of choice are a special...

This paper presents a model of bargaining networks between sellers and buyers, when some sellers are willing to share access to their local markets. Given a status quo network, game is played in two stages: in the first stage, sellers form a new network by signing two-sided contracts; in the...

This paper evaluates the effects of the lack of regulatory commitment on emission tax applied by the regulator, abatement effort made by the monopoly and social welfare comparing two alternative policy games. The first game assumes that the regulator commits to an ex-ante level of the emission...

We show that in an infinitely repeated Cournot game when firms adopt stick and carrot strategies exogenous horizontal mergers are profitable regardless the size of the merged entity. We characterize an equilibrium in which the new entity maximizes its discounted intertemporal profit under the...

Using the political-economic history of the development of telephony during the 1870s as a backdrop, this paper studies a two-player Tullock contest that includes both research effort (R&D) and legal effort (i.e., rent-seeking effort). The two types of efforts complement each other and...