Accounting measures of profitability are viewed by the academic literature with skepticism, perhaps even disdain. Accounting information and accounting rates of return are, however, relied upon extensively by market participants to compare and contrast the economic performance of alternative...

We examine the international diffusion of new drugs under the post-TRIPS intellectual property rights regime. Even after controlling for drug characteristics and variation in national health expenditure, we find substantial differences across countries in the probability of a drug being...

We examine market share and price trends in the quarter century since the 1984 Waxman-Hatch legislation. The generic share of US retail prescriptions has grown from 18.6% in 1984 to 74.5% in 2009, with a notable acceleration in recent years. Whereas in 1994 the generic price index fell from 100...