time effects. All countries display a massive reallocation of resources, with the entry and exit of many firms in all … market contestability. There are also large differences across groups of countries. While entry and exit rates are fairly … similar across industrial countries, post entry performance differs markedly between Europe and the U.S., a potential …

by both high entry and high exit rates. …

estimated prices of these drug undergoing LOE fall with generic entry. Second, we estimate reduced form random effects models of … utilization subsequent to LOE. We observe substantial price erosion after generic entry; average monthly price declines appear to … entry, but this result appears to be largely driven by oral drugs. We discuss second-best welfare consequences of these …