The labour productivity differentials between manufacturing firms in Ghana and South Korea exceed those implied by macro analysis.  Median value-added per employee is nearly 40 times higher in South Korea than Ghana.  The most important single factor in explaining this difference is the...

The latest World Bank estimates of real GDP per capita for China are significantly lower than previous ones.  We review possible sources of this puzzle and conclude that it reflects a combination of factors, including substitution bias in consumption, reliance on urban prices which we estimate...

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...

Characteristics models have been found to be useful in many areas of economics. However, their empirical implementation tends to rely heavily on functional form assumptions. In this paper we develop a revealed preference approach to characteristics models. We derive the necessary and sufficient...

This paper analyses collusion-proof multilateral insurance contracts between a risk neutral insurer and multiple risk averse agents in an environment of asymmetric costly state verification.  Optimal contracts involve the group of agents pooling uncertainty and the insurer acting as reinsurer...

We investigate the optimal regulation of financial conglomerates which combine a bank and a non-bank financial institution. The conglomerate`s risk-taking incentives depend upon the level of market discipline it faces, which in turn is determined by the conglomerate`s liability structure. We...

Debating the minutiae of insurance regulation without a clear understanding of why insurance companies are regulated is futile. In this non-technical essay I discuss the economic rationale for insurance business regulation. I conclude that the appropriate role of the regulator in this industry...