Regulation can influence the structure, conduct and performance of consumer product markets and the structure of product markets can influence regulation. Since the vast majority of prescription drugs consumed by Americans are generic, the structure of the U.S. generic prescription drug market...

"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...