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...

Existing methods of reconstructing historical Euro-zone data by aggregation of the individual countries’ data raises numerous difficulties due to past exchange rate changes. The approach proposed here is designed to avoid such distortions, and aggregate exactly when exchange rates are...

The exchange between Epstein (2010) and Klibanoff et al. (2012) identified a behavioral issue that sharply distinguishes between two classes of models of ambiguity sensitivity, exemplified by the Î±-MEU model and the smooth ambiguity model, respectively. The issue in question is whether a...

This article explores the economic underpinnings of the arab spring. We locate the roots of the region’s long-term economic failure in a statist model of development that is financed through external windfalls and rests on inefficient forms of intervention and redistribution. We argue...

South Africa’s recent adoption of inflation targeting increases the need for good forecasting models of inflation and models for understanding the monetary transmission mechanism. This paper presents multi-step models for inflation and output, four-quarters ahead. The inflation model has...