We assess the impact of merger policy on entry and entrepreneurship. When faced with uncertainty about its prospects, and foreseeing that it may wish to leave the market should profitability prove poor, a rational entrant considers possible exit routes. Horizontal merger reduces competition...

A principal wants an agent to complete a project. The agent undertakes unobservable effort, which affects in each period the probability that the project is completed. We characterize the contracts that the principal sets, with and without commitment. With full commitment, the contract involves...

Regulating Utilities and Promoting Competition continues the series of annual books, published in association with the Institute of Economic Affairs and the London Business School, which critically review the state of utility regulation and competition policy.

This paper provides a sufficient condition for existence and uniqueness of equilibrium, which is in monotone pure strategies, in games of incomplete information. First, we show that if each player’s incremental ex post payoff is uniformly increasing in its own action and type, and its...

This paper considers the `failing firm defence'. Under this principle, found in most antitrust jurisdictions, a merger that would otherwise be blocked due to its adverse effect on competition is permitted when the firm to be acquired is a failing firm, and an alternative, less detrimental merger...

This paper provides a characterization of the set of dynamic models in which symmetric duopolists have incentives to raise a common cost. The advantage of the dynamic analysis over existing static models is that it extends the conditions (restrictive in static models) under which symmetric cost...

We analyse a simple model of dynamic moral hazard in which there is a clear and tractable trade-off; between static and dynamic incentives. In our model, a principal wants an agent to complete a project. The agent undertakes unobservable effort, which affects in each period the probability that...

We propose a simple model of optimal stopping where the economic environment changes as a result of learning. A primary application of our framework is an optimal job search problem when the worker's labour market opportunities are initially uncertain. We distinguish between two interpretations...

We assess the impact of merger policy on entry and entrepreneurship. Facing uncertainty about its prospects and foreseeing that it may wish to quit should profitability prove poor, a rational entrant considers possible exit routes. Horizontal merger reduces competition subsequently, lowering...