The phenomenal growth of the customer base for mobile phones has been heavily promoted by the industry. However, analysis of the numbers indicates that there are massive levels of systemic overcounting, caused by customers with multiple subscriptions, perhaps for a range of operators, perhaps...

As part of the Modification of Final Judgment (MFJ) that implemented the divestiture of the Bell operating companies (BOCs) from AT&T on January 1, 1984, the BOCs were forbidden to carry telephone calls from one local access and transport area LATA) to another. Although the Telecommunications...

Retail shopping has become a many-faceted experience for both buyers and sellers. Already increasing in use before the impact of the COVID-19 pandemic on shopping habits, e-commerce continues to evolve, offering new ways for retailers to sell and consumers to buy their products. Consumers now...

This paper compares the welfare effects of three ways in which health care can be organized: no competition (NC), competition for the market (CfM) and competition on the market (CoM) where the payer offers the optimal contract to providers in each case. We argue that each of these can be optimal...

This paper evaluates the effect on competition of adopting the FTC's product hopping theory as an antitrust doctrine. The paper criticizes the theory and explains why it would be a mistake to adopt it as a guide to antitrust liability

There appears to be universal agreement that antitrust policy should "protect competition, not competitors" and that consumer welfare is the fundamental standard for evaluating competitive effects. There is considerable debate, however, about how to implement those principles in practice when...

We compare the private and social incentives for privacy when sellers can commit to transparent privacy policies that are understood by consumers. The purpose is to establish a baseline for how well markets perform when firms' privacy policies are common knowledge. In this setting, if the market...

This paper analyses the sources of supermarket power vis-à-vis shoppers and independent brands. This power transforms leading supermarkets into vertically-integrated competitive bottlenecks that are able to restrict competition between brands (including their own ones) and reduce consumer...

Automobiles are ubiquitous. Most Americans take at least one car trip every day to get to work or school or to run household errands. The automobile has also never been safer. New technology has brought car frames that crumple to reduce the impact of a crash, airbags that cushion the blow of an...

Differential Privacy offers the online advertising industry new means to increase consumer privacy by obfuscating consumer data. While achieving the same privacy, these means decrease targeting accuracy differently, subsequently reducing advertisers’ willingness to pay (WTP) for targeted...