We introduce cheap talk in a dynamic investment model with information externalities. We first show how social learning adversely affects the credibility of cheap talk messages. Next, we show how an informational cascade makes thruthtelling incentive compatible. A separating equilibrium only...

Models of herd behaviour and informational cascades were theoretically developed in 1992 respectively by Banerjee (A simple model of herd behavior) and Bikhchandani, Hirshleifer and Welch (A Theory of Fads, Fashion, Custom and Cultural Change as Informational Cascades). Both articles pointed out...

For groups that must make several decisions of similar form, we define a simple and general mechanism that is designed to promote social efficiency. The mechanism links the various decisions by forcing agents to budget their representations of preferences so that the frequency of preferences...

In environments where regulations are lax and controls function badly, cleanly participating in tenders is irrational. An increase in one single firm’s propensity to bribe induces the same behaviour upon the others (“bad apple effect”), and the likelihood of firms to bribe tends to...

We propose a dynamic general equilibrium model with human capital accumulation to evaluate the economic consequences of compulsory services (such as military draft or social services). Our analysis identifies a so far ignored dynamic cost arising from distortions in time allocation over the...

A number of papers in the theoretical auction literature show that the release of information regarding the seller’s valuation of an item can cause bidders to bid more aggressively. This widely accepted result in auction theory remains largely untested in the empirical literature. Recent...

This note examines the Integrity Pact (IP) methodology proposed by Transparency International to confront the problem of corruption in public procurement. The examination draws from a decision model for participants developed elsewhere, in which the critical elements are shown to be the...

The prisoner’s dilemma is sometimes invoked to describe the situation facing participants in tenders. Reasoning on the basis of the dilemma metaphor, it is contended that agreeing not to bribe public officials in order to win contracts (collaboration) leads to better outcomes than bribing...