Monoculture versus diversity in competition economics

Economics rightfully represents the major basis for competitionpolicy. Next to generating knowledge about competition and itswelfare effects, the currently popular ‘more-economicapproach’ is charged with a number of additional hopesand expectations. While this article highlights the benefitsof economics-based competition policy, it takes a cautious stancetowards excessive expectations, in particular regarding theidea that a monocultural, ‘unified’ competitiontheory as an exact, objective and unerring scientific approachto antitrust could make normative assessment and generalisationssuperfluous. Diversity in competition economics is advocatedin two ways. First, competition economics is empirically characterisedby a considerable pluralism of theories and policy paradigms.Second, it is demonstrated that this diversity of theories istheoretically beneficial for future scientific progress. Asno ultimate competition theory can ever be expected., the ‘more-economicapproach’ must be extended in order to embrace diversity.     

Domestic Distortions and the Early Emergence of the International Trade in Fire Insurance from the UK

In the second half of the nineteenth century, British fire insurance exports grew rapidly to more than half of the revenue accepted by British fire insurance companies. It has been suggested by some, including Michael Porter, that this expansion was based on a comparative advantage created in large part by a highly competitive domestic insurance market. Yet the existence of strong and sophisticated cartels in the British insurance market is well known. The paper argues that in fact the chief motive for the drive to develop business abroad came from the existence of the cartel, whose increasing power prompted the creation of a number of new well‐supported companies. The circumstances of the insurance business forced them to develop a large and diversified business and this required them to join the cartel. This membership deprived them of the price weapon to develop their business in the domestic market. They were thus forced to develop innovative strategies to grow. One of these was to deploy innovative marketing policies at home. The other was to expand abroad. By contrast, most of the older companies that had created the cartel developed foreign business later and on a far smaller scale.     

The brain drain: A tax analysis of the Bhagwati proposal

To alleviate the problems caused by the brain drain, Professor Bhagwati proposes that professional, technical, and kindred persons who emigrate from less developed countries be subjected to a special tax on the income they earn in developed countries. This paper highlights the political and legal issues raised by his proposal and examines three approaches to implementation: a tax levied by the less developed country, a tax levied by the developed country, and a tax levied by the United Nations. Specific aspects of the proposal which require further study and refinement, such as administrative feasibility, are outlined.     

Optimal financial investments for non-concave utility functions

We prove a formula for the computation of optimal financial investments in an expected utility framework with arbitrary (not necessarily concave) utility functions. This extends classical results on optimal financial investments for strictly concave utility functions and is of importance particularly for applications of prospect theory where the utility function has a convex-concave shape.     

The Halle Economic Projection Model

In this paper we develop an open economy model explaining the joint determination of output, inflation, interest rates, unemployment and the exchange rate in a multi-country framework. Our model—the Halle Economic Projection Model (HEPM)—is closely related to studies published by Carabenciov et al. (2008a,b,c). Our main contribution is that we model the Euro area countries separately. In doing so, we consider Germany, France, and Italy which represent together about 70% of Euro area GDP. The model combines core equations of the New-Keynesian standard DSGE model with empirically useful ad-hoc equations. We estimate this model using Bayesian techniques and evaluate the forecasting properties. Additionally, we provide an impulse response analysis and historical shock decomposition.