Recent empirical studies suggest that there is a rising trend of market power across sectors in advanced economies. We contribute to this line of research by providing industry-specific evidence for German manufacturing industries, based on representative high-quality firm level data from...

The following is a compilation of short book reviews I have prepared over the past two years for the World Competition Law & Economics Review or the Institute for Consumer Antitrust Studies, Loyola University Chicago School of Law website. In one case, the book discussed was published in 2010,...

Recent empirical studies suggest that there is a rising trend of market power across sectors in advanced economies. We contribute to this line of research by providing industry-specific evidence for German manufacturing industries, based on representative high-quality firm level data from...

Over the past decade, an increasing number of firms have delegated pricing decisions to algorithms in consumer markets such as travel, entertainment, and retail; business markets such as digital advertising; and platform markets such as ride-sharing. This trend, driven primarily by the increased...

In this thesis, I have examined whether the current approach to competition policy is suitable for the distinct characteristics of the digital economy. It is particularly difficult to define the relevant market and rely on market share test as a proxy for market power in the digital economy...

Neoliberal political leaders such as Prime Minister Margaret Thatcher (1979-90) and President Ronald Reagan (1981-89) heralded entrepreneurs as capitalist heroes. Yet for the most part the policies they enacted did not help real entrepreneurs. Their ideology impaired their ability to promote...

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...

The “invisible hand” has become an icon for an economic philosophy that assumes a laissez-faire governmental policy will result in optimal social and financial outcomes as market forces will drive a socially efficient equilibrium. This approach is in tension with another philosophy that...

The present paper (presented in ITU's & INA 2009 workshop on “Migration to Next Generation Regulatory Environment”) tries to identify the effects of the concentration experienced so far in the EU telecom sector and offers a high level strategy proposition for alternative revenue sources in...

Digital markets have raised a number of new competition challenges. Ex-post competition policy appears not to be able to address them in their entirety and with the necessary speed. There is considerable consensus, among academics and policy-makers, that ex-ante regulatory policies are needed to...