Wir untersuchen die Bedingungen, unter denen infolge der Globalisierung, insbesondere des Verfalls der (Informations-) Transaktionskosten Wettbewerbspolitik möglich ist. Zunächst zeigen wir in einem theoretischen Abschnitt die Folgen der veränderten Transaktionskosten auf institutionelle...

Free!! Google and Facebook!!! We all know them, what to worry about? Everything! The giants of the internet are expanding into every corner of the economy, politics and our lives. They control the majority of digital advertising; Alphabet, Google's parent, and Facebook receive more than 60...

Canada’s productivity performance has lagged that of many other OECD countries, despite some improvement in recent years. One measure to enhance overall efficiency would be to strengthen competition on the domestic market to drive future multi-factor productivity improvements. The potential...

There can be no doubt that the FANG companies – Facebook, Amazon, Netflix and Google, as well as Twitter – have transformed society since their emergence. Like all social transformations, the changes wrought by their services have had ripple effects that are both positive and negative. On...

Given various recent antitrust investigations on the retail sector, we deal with uncovering demand systems substitution patterns for a particular market (diapers) to investigate the inter-format competition (supermarkets vs. discounters vs. drugstores). Using the uncovered demand system we...

This paper analyses the extent of inter-format retail competition between supermarkets, discounters and drugstores in Germany, using data from the German market for diapers. We estimate a random coefficient logit model at the individual household level. Based on consumer substitution patterns,...

A tying arrangement is a seller’s requirement that a customer may purchase its “tying” product only by taking its “tied” product. In a variable proportion tie the purchaser can vary the amount of the tied product. For example, a customer might purchase a single printer, but either a...

Antitrust enforcement is entering a period of transition in the United States. The election of Barack Obama as President and his executive branch, regulatory, and judicial appointments will have importance consequences for antitrust law and enforcement, although most observers believe that these...

We consider separately strategic entry and asymmetric information in the design of the settlement policy governing patent disputes, with a focus on Shapiro(2003)'s consumer protection rule. We show that, when a potential entrant strategically incurs an entry cost before engaging in a patent...

This manuscript seeks to introduce the concepts present in competition legislation of four Portuguese-speaking countries for new competition officials and operators to grasp essential concepts. Although not a new subject, economic changes in several countries have served as a backdrop to drive...