Conditionality is the most controversial aspect of the IMF`s policies. It has been said to be intrusive and coercive and considered to disregard effects on growth, employment and income distribution. In the 1990s, following a sharp increase in the number of conditions required by programs, Fund...

This paper analyses the implications of bargaining between buyers and sellers on the competitive outcome in a homogeneous good industry. Bargaining creates a competitive equilibrium in which some inefficient sellers coexist with efficient ones leading to productivity dispersion. Rival cost...

Optimal monetary policy is sensitive to the Phillips curve specification used to represent the dynamics of inflation and output. Most recent literature has used a new Keynesian Phillips Curve based on Calvo pricing. This paper shows that this workhorse model is not robust to relatively minor...

The existence of a self-regulating arbitrage mechanism under the gold standard has been traditionally considered as one of its main advantages, and attracted a corresponding research interest. This research is arguably relevant not only to test for the efficiency of the gold points, but also to...

Probably the most enduring result in the theory of optimum income taxation is that, for a sufficiently thin upper tail to the skill distribution, the marginal tax rate should fall rather than rise with income. This paper shows that this result is highly sensitive to a very strong informational...

This paper provides a critical view of the cross country literature on the impact of labour market institutions and policies on the evolving pattern of unemployment in OECD countries. Such widely used indicators as the generosity of unemployment insurance or the strength of trade unions are...

This paper studies a game of strategic experimentation with two-armed bandits whose risky arm might yield a payoff only after some exponentially distributed random time. Because of free-riding, there is an inefficiently low level of experimentation in any equilibrium where the players use...

We examine some of the factors that might influence the quality of information produced in discussion groups on the internet, such as USENET and the WELL. In particular, we look at the impact of various different pricing structures, and compare regimes in which anonymity is enforced with regimes...

This paper extends the relational contract model in Levin (2003) with shocks to theagent’s cost of effort (agent’s type) to shocks to the principal’s valuation of the agent’seffort (principal’s type). When optimal effort is fully pooled across agent types...

We estimate a model of wheat yields for eighteenth century England using village-level data. This is an entirely new approach to quantifying progress during the Agricultural Revolution and enables us to consider both environmental and technological inputs. We find that climate was a crucial...