This paper presents a model of labour supply determination under job competition. In the presence of a positive rate of unemployment and increasing returns to labour, the level of labour supply chosen by each individual lies above the one that, at the offered wage, maximises utility. There is a...

In the paper, I examine free entry in homogeneous product markets and its social efficiency. Previous research on free entry in homogeneous product markets has shown that under Cournot oligopoly with fixed setup costs the free entry equilibrium always delivers excessive entry. In contrast, I...

In June 2006, Russian federal law legalized the exclusive right of Gazprom to export natural gas to Europe, and thus thwarted efforts by the European Union to bring competition to the Russian gas industry. An understanding of the motivation of the Russian government to support this export...

Digital platforms operate in multisided markets providing services through the internet to two or more distinct groups of users, between which there are indirect network effects. Direct network effects are frequently present within each group. Therefore, online platforms usually present both...

How are the welfare costs from monopoly distributed across U.S. households? We answer this question for the U.S. credit card industry, which is highly concentrated, charges interest rates that are 3.4 to 8.8 percentage points above perfectly competitive pricing, and has repeatedly lost antitrust...

The May 2009 Rose Garden ceremony for President Obama’s signing of new fuel efficiency mandates for automobiles was attended by a remarkable gathering of “bootleggers and Baptists” - “Baptist” environmentalists who were pleased to get a policy they desired, and “bootlegger”...

Is common ownership in fintech companies an empirically significant phenomenon? What are its impact on competition and innovation in fintech markets and its implications for competition law enforcement? This chapter studies these questions providing evidence and insights on the extent of common...

Where do competition, antitrust and private equity intersect? Once antitrust’s favored child compared to strategic buyers, private equity seems to have fallen from competition enforcers’ grace. Interestingly, this is part of a broader trend: financial investors in general, from BlackRock to...

Attention has become one of the most scarce—and therefore most valuable—assets in modern economies. Humans now trade vast amounts of attention each day in exchange for an ever-growing variety of digital products and services. The global coronavirus pandemic drastically accelerated the...