This paper provides an overview of recent developments in algorithmic antitrust, and the economics and legal issues raised in the areas of abuse of dominance, algorithmic pricing and collusion, and mergers and acquisition. The general theme is that while much has been made of the possible...

We study empirically the price effects of upstream cartels that sell through downstream retailers to final consumers. We focus on a German coffee producer cartel that colluded under two different regimes: (i) involving wholesale prices in 2003 and (ii) with additional resale price maintenance...

Market power on each side of a multisided platform, whether in the form of increasing prices or decreasing quality, is constrained by the risk of losing sales on the other sides. That tends to weaken market power on each side and encourages platforms to keep prices lower and quality higher than...

Refusal to deal has been a developing prohibition under the Egyptian competition regime. Even though, to date, the Egyptian Competition Authority has never detected a violation of refusal to deal, raising concerns of under enforcement, courts have been able to take the lead and develop the...

When successive monopolies transact through noncooperative linear pricing, the resulting double markup decreases their joint profits relative to vertical integration. However, if there are downstream rivals (which are not double marginalized), the same noncooperative interaction often...

“Free” products have exploded in popularity along with widespread Internet adoption—but many of them are not truly free. Customers often trade their attention or personal information to access zero-price products. This exchange dynamic brings zero-price markets within the scope of...

This article discusses the approaches of the European Union (EU) and of the United States (US) to the notions of agreement and concerted practice applied to horizontal collusive consequences of vertical restraints. I conclude that networks of vertical restraints blur the differences between...

This paper analyzes the welfare implications of buyer mergers, which are mergers between downstream firms from different markets. We focus on the interaction between the merger's effects on downstream efficiency and on buyer power in a setup where one manufacturer with a non-linear cost function...

Kenya is about to embark on an important reform to expand banking to millions of poor households by enabling third-party retail agents as a low-cost distribution alternative to branches. However, this initiative risks being undermined by the mobile network operator (MNO) Safaricom, which...

In his 2012 article, “Revisiting the Revisionist History of Standard Oil”, Christopher Leslie takes issue with John McGee's work on predatory pricing and its influence on antitrust law and scholarship. Leslie claims McGee's analysis was methodologically flawed, ideologically motivated, but...