I have actually published a couple of papers on innovation in the pharmaceutical sector over the past roughly half century. Although it is true that the total number of drugs being developed in the pharmaceutical sector has fallen quite considerably since the 1990s, if you look at the number of new drugs that are what you might consider novel in their therapeutic or pharmacological properties, that are close to something that is breakthrough medicine, the rates of those truly innovative or at least pioneering medicines have actually been fairly stable over time.
The cycles of drug development that we observed in the 1990s were largely a function of a business model focused on basically leveraging as well as possible both the clinical and the economic opportunities of treating risk factors for disease and other chronic treatment categories. Those economic and clinical opportunities began to wane, in essence, around the turn of the millennium, and we've seen a subsequent decline in that business model. We've seen the pharmaceutical industry lay off literally tens of thousands of people in both research and development and marketing—