Yes. The argument in favour of patent term extension is fairly straightforward. The patent term runs from the time the patent application is filed. There's a certain amount of time, about three years maybe, until the patent is actually granted. In many industries, by that time the product can be commercialized and on the market, and you end up with 17 years of effective patent term.
In the pharmaceutical industry, the patenting always happens far before the clinical trials and before marketing approval, which can take many years. Therefore, the effective patent term in the pharmaceutical industry is much less than the 17 years. I don't have stats at hand, but it's eight years or sometimes five years, depending on the particular patent.
The argument is to compensate for this regulatory delay, the pharmaceutical industry needs term extension to give it the same effective patent life as every industry has. That's the basic argument in favour. The basic argument against it, what I call the principled argument against it, is how much time is really needed. The fact is that the term of 20 years from filing, and the 17 years from grant before that, all goes back to England and the time it took to train two apprentices.
We don't know that 17 years is optimal. Maybe five years is optimal. I don't think one year is optimal. Maybe 30 years is optimal, for all we know. It's a very difficult empirical question. We don't have good answers. We can say that one patent gets a less effective term than another, but nobody needs seventeen years, and five years is good enough. That's the principled objection.
The pragmatic objection to patent term extension is to say that we're going to get the benefits anyway. The U.S. and Europe are the big markets. The innovation is going to happen to serve those markets, and if they give patent term extensions, they'll get more innovation, and we'll get the benefits. The counter-argument to that is that we're free-riding, and that's likely to set off a trade war.
The very principled objection is if everybody thinks the same way, everybody says they shouldn't have patents and that everybody else should, then nobody will have patents and we'll be worse off. Apart from that, we might get into a trade war if other countries simply think we're free-riding.
More fundamentally from my perspective, I don't think we should free-ride. I have to say as a moral proposition that free riding on the investment of others for pharmaceuticals is a perfectly defensible position for a third world country, but we're not a third world country, and I don't see any reason that we shouldn't bear our fair share of the costs.
My view on this is that the best way to look at the issues is to ask—