It's interesting. When I first encountered this stuff about 15 years ago as a student, I was quite skeptical. I encountered it especially through an agreement called the Multilateral Agreement on Investment, and at that time I had a lot of reservations. Since doing my Ph.D., I've come to view, for example, the World Trade Organization as a very important institution.
I certainly support classical trade liberalization, that is, removal of tariff barriers and other kinds—direct and obvious non-tariff barriers. But I think the trade regime has extended into a lot of new areas, and investment is probably the most significant, in which this has gone beyond the classical debate about trade liberalization. I think there can be positive aspects of that extension, but there can also be quite significant negative consequences. We've seen those emerge in, I'd say, the last five to ten years, with the increasing invocation of these kinds of investment provisions by companies in areas that you really wouldn't associate with the typical trade liberalization agenda.