Online advertising accounts for almost 9 percent of all advertising in the United States. This share is expected to increase as more media is consumed over the Internet and as more advertisers shift spending to online technologies. The expansion of Internet-based advertising is transforming the...

Our study of the Bell System cost function shows that it is possible to reject the hypothesis that AT&T was a natural monopoly. Our study is based on a regression analysis of a translog cost function estimated on 1947--1977 data. Charnes, Cooper, and Sueyoshi (Charnes, A., W. W. Cooper, T....

This Chapter provides a survey of the economics literature on multi-sided platforms with particular focus on competition policy issues, including market definition, mergers, monopolization, and coordinated behavior. It provides a survey of the general industrial organization theory of...

Annabelle Gawer presents cutting-edge contributions from 24 top international scholars from 19 universities across Europe, the USA and Asia, from the disciplines of strategy, economics, innovation, organization studies and knowledge management. The novel insights assembled in this volume...

One might mistakenly think that the long tradition of economic analysis in antitrust law would mean there is little new to say. Yet the field is surprisingly dynamic and changing. The specially commissioned chapters in this landmark volume offer a rigorous analysis of the field’s most...

This paper uses data from the National Longitudinal Survey of Young Men and the Current Population Survey for 1983 to examine the relationships among wages, firm size, and plant size. We reach three key findings. First, plant size has little independent effect on wages once we have controlled...

Software platforms are a critical component of the computer systems underpinning leading? edge products ranging from third? generation mobile phones to video games. After describing some key economic features of computer systems and software platforms, the paper presents case studies of personal...