Entry and regulation: evidence from health care professions

In many countries, pharmacies receive high regulated markups and are protected from competition through geographic entry restrictions. We develop an empirical entry model for pharmacies and physicians with two features: entry restrictions and strategic complementarities. We find that the entry restrictions have directly reduced the number of pharmacies by more than 50%, and also indirectly reduced the number of physicians by about 7%. A removal of the entry restrictions, combined with a reduction in the regulated markups, would generate a large shift in rents to consumers, without reducing the availability of pharmacies. The public interest motivation for the current regime therefore has no empirical support.     

Market integration and convergence to the Law of One Price: evidence from the European car market

This paper exploits the unique case of European market integration to investigate the relationship between integration and price convergence in international markets. Using a panel data set of car prices, we examine how the process of integration has affected cross-country price dispersion in Europe. We find surprisingly strong evidence of convergence towards both the absolute and the relative versions of the Law of One Price (LOOP). Our analysis illuminates the main sources of segmentation in international markets and suggests the type of institutional changes that can successfully reduce it.     

Improving the performance of random coefficients demand models: The role of optimal instruments

We shed new light on the performance of Berry, Levinsohn and Pakes’ (1995) GMM estimator of the aggregate random coefficient logit model. Based on an extensive Monte Carlo study, we show that the use of Chamberlain’s (1987) optimal instruments overcomes many problems that have recently been documented with standard, non-optimal instruments. Optimal instruments reduce small sample bias, but they prove even more powerful in increasing the estimator’s efficiency and stability. We consider a wide variety of data-generating processes and an empirical application to the automobile market. We also consider the gains of other recent methodological advances when combined with optimal instruments.     

Program duplication in higher education is not necessarily bad

Public systems of higher education have recently attempted to cut costs by providing financial incentives to cut duplicated programs, i.e. programs that are offered at different institutions. We study the profit and welfare effects of reducing program duplication, against the background of a funding system reform in Flanders (Belgium). We find that dropping duplicated programs at individual institutions tends to be socially undesirable, due to the students’ low willingness to travel to other institutions and to the limited fixed cost and variable cost savings. Furthermore, we find that the financial incentives offered to drop programs may be very ineffective, leading to both undesirable reform and undesirable status quo. These findings emphasize the complexities in regulating product diversity in higher education, and serve as a word of caution towards the various decentralized financial incentive schemes that have recently been introduced.     

Price Squeezes in a Regulatory Environment

This paper analyzes the relevance and the scope of price squeeze tests in a regulatory environment. We distinguish between three types of ex ante regulation (full, partial or no regulation) to identify regulatory squeezes, predatory squeezes, and squeezes as foreclosure. We argue that policy makers should (i) use price squeeze tests as an ex post instrument, compatible with the ex ante regulatory environment, and (ii) focus on predatory price squeezes. We propose a predatory squeeze test that respects regulatory choices that have been made previously, in contrast with the earlier proposed tests. We extend our framework to ask at which aggregation level predatory price squeeze tests ought to be applied, a much-debated issue in telecommunications.JEL Classification: L40, L51, L97Jan Bouckaert acknowledges the financial support from the University of Antwerp (NOI2003). Frank Verboven acknowledges financial support from the Belgian Science Foundation-Flanders. We are grateful to two anonymous referees and the Editor for their helpful remarks. We also thank conference and seminar participants at CEFIR (Moscow), CPB (The Hague), the University of Antwerp, and Massimo Motta, Walter Nonneman, Wilfried Pauwels, and Tomasso Valletti for very useful comments.