In early 2004, the U.S. Government initiated the Medicare Discount Drug Card Program (MDDCP), which created a market for drug cards that allowed elderly and handicapped subscribers to obtain discounts on their prescription drug purchases. Pharmacy-level prices for many drugs were posted on the...

We provide a recent account of the diffusion of electronic business in the U.S. economy using new data from the U.S. Bureau of the Census. We document the extent of the diffusion in three main sectors of the economy: retail, services, and manufacturing. For manufacturing, we also analyze plants'...