We compute quality-adjusted price indexes for Personal Digital Assistants (PDAs) for the period 1999-2004, using data on prices and characteristics of 203 models sold by 12 manufacturers. The PDA market is growing in size, it is technologically dynamic with very substantial changes in measured...

We study further a problem that has arisen recently in the design of telecommunications transmission networks at France Telecom. Given a set of centers in a city of conglomeration linked together on a ring architecture, given the expected demands between the centers and an essentially unlimited...

Does competitive pressure foster innovation? In addressing this important question, prior studies ignored a distinction between discrete innovation aiming at entirely new technology and continuous improvement consisting of numerous incremental improvements and modifications made upon the...

Strategic investment is studied in a model where oligopolists take decisions sequentially. First period investment determines second period wealth and output, and this is anticipated correctly by Cournot oligopolists. In our model with linear technology firms invest less as competition...

Advances in competition economics as well as in computational and empirical methods have offered the scope for the employment of merger simulation models in merger control procedures during the past almost 15 years. Merger simulation is, nevertheless, still a very young and innovative instrument...

An economy benefits from advances in technical frontiers only when new technology comes into general use. This paper measures the diffusion of computing equipment at a time when computing technology underwent dramatic technical improvement. These data shed light on the long lag between advances...

Sparked by concerns about their shrinking market share, 14 leading U.S. semiconductor producers, with the financial assistance of the U.S. government in the form of $100 million in annual subsidies, formed a joint R&D consortium -- Sematech -- in 1987. Using Compustat data on all U.S....

The authors test opposing theories on how urban locations influenced the diffusion of Internet technology. They find evidence that, controlling for industry, participation in the Internet is more likely in rural areas than in urban areas. Nevertheless, talk of the dissolution of cities is...

Our study provides the first census of the dispersion of Internet technology to commercial establishments in the United States. We distinguish between participation, that is, use of the Internet because it is necessary for all business (e.g., email and browsing) and enhancement, that is,...

The main objective of the study is descriptive. We set out to explore the (cor)relations between five IT and R&D indicators and measures of labor and total factor productivity, average wage and skill composition, on four panel data samples of French manufacturing and services firms over the two...