In a market environment with random detection of product quality, a firm can employ umbrella branding as a strategy to convince consumers of the high quality of its products. Alternatively, a firm can rely on external certification of the quality of one or both of its products. We characterize...

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 examine a model in which the public is unsure about the competence of a politician, and whether they are concerned about the long-term consequences of their decisions (statesman) or about the public’s opinion concerning their competence and preferences (populist). The main finding suggests...

Confirmation bias refers to cognitive errors that bias one towards one's own prior beliefs. A vast empirical literature documents its existence and psychologists identify it as one of the most problematic aspects of human reasoning. In this paper, we present three related scenarios where...

The literature on financial imperfections and business cycles has focused on propagation mechanisms. In this paper we model a pure reversion mechanism, such that the economy may converge to a two-period equilibrium cycle. This mechanism confirms that financial imperfections may have a dramatic...

This Paper views authority as the right to undertake decisions that have external effects on other members of the organization. Because of contractual incompleteness, monetary incentives are insufficient to internalize these effects in the decision-maker’s objective. The optimal assignment of...

We present a model of optimal contracting between a purchaser (a principal) and a provider (an agent). We assume that: a) providers differ in efficiency and there are two types of provider; b) efficiency is private information (adverse selection); c) providers are partially altruistic or...

Under contingent fees the attorney gets a share of the judgement; under conditional fees they get an upscale premium if the case is won, which is, however, unrelated to the adjudicated amount. We compare conditional and contingent fees in a framework where lawyers choose between a safe and a...

This Paper analyses the impact of asymmetric information within countries on the pattern of international trade. We append to the standard 2×2 Heckscher-Ohlin model of a small economy a continuum of sectors producing intermediate non-tradable goods. Those goods are produced by monopolies having...

Using a portfolio balance model of exchange rate determination, this paper develops a theoretical explanation of why central banks do not make precise announcements of their exchange rate targets. In foreign exchange markets, where it is common knowledge that the central bank intervenes to...