The Cato Institute is a libertarian free market think tank in the US that is very pro free trade.
However they have string reservations around the TPP, specifically the intellectual property chapter. The fact these come from normal champions of free trade agreements makes them harder to rebut.
They have a webinar on the TPP on Thursday morning for those interested.
The blurb is:
Intellectual property has been a focus of U.S. trade policy for many decades, and the Trans-Pacific Partnership negotiations include an especially ambitious effort by the United States to strengthen international intellectual property laws. At the same time, however, there is serious debate within the United States over the proper scope and level of intellectual property protection. Is it in the interests of the United States to seek to harmonize intellectual property rules around the world, or is the U.S. position overly influenced by special interests hoping to export bad policy abroad and to lock it in at home? Come hear our panel of experts discuss why trade agreements cover intellectual property law, whose interests are served, and what, if anything, should be done about it.
Hopefully the NZ negotiators will maintain their position of opposition to the proposed US text for the intellectual property chapter.