Antitrust law and telecommunications regulation have long adopted different stances on whether to mandate open access to information platforms. This article aims to help regulators and commentators incorporate both Chicago School and post-Chicago School arguments in evaluating this basic policy...

Surveys of cartel proceedings reveal that illegal cartels usually (1) attempt to minimize the risk of detection, (2) achieve merely imperfect levels of collusion, (3) compete against some fringe firms, and (4) adjust to market entries and exits. By contrast, existing oligopoly models of...

Using a sample of modern international cartels, we analyze the level and determinants of cartel sanctions imposed on the participants of these cartels in a number of antitrust jurisdictions. There is empirical evidence suggesting that gains from collusive conduct outweigh its costs represented...

Using the overcharge estimates for 406 cartel episodes, I evaluate the impact of cartel characteristics and market environment on the size of the overcharges imposed by cartels in different geographic markets and during six antitrust law regimes starting from the 18th century. I find that the...

Using the overcharge estimates for 333 cartel episodes, we evaluate the impact of cartel characteristics and changes in the market and legal environment on the magnitude of overcharges imposed by private cartels in the US and other geographic markets as early as the 18th century. The median...

In this essay we evaluate the impact of the revolution that has occurred in antitrust and in particular the growing role played by economic analysis. Section II describes exactly what we think that revolution was. There were actually two revolutions. The first was the use by economists and other...

Using the overcharge estimates for 395 cartel episodes, we evaluate the impact of cartel characteristics on the size of overcharges imposed by cartels in different geographic markets and during six antitrust law regimes starting from the 18th century. We find that the average overcharge imposed...

This paper evaluates the recent literature claiming that the US economy has generally become less competitive causing the US economy to perform poorly and that lax antitrust policy is one important reason for the decline in economic performance. Although there certainly are empirical facts...

Tunisian manufacturing sector plays an important role in the Tunisian economy. It contributes significantly to the Gross Domestic Product, employment, gross fixed capital formation, merchandise exports, and the use of advanced technologies. Accordingly, it has been called upon to play a key role...

How many cartels are there? The answer is important in assessing the need for competition policy. We present a Hidden Markov Model that answers the question, taking into account that often we do not know whether a cartel exists in an industry or not. We take the model to data from a period of...