[yobbobandana]

A range of difficulties have emerged for TPP seeking to strengthen IP standards beyond those agreed to in TRIPS. Analysis of the costs and benefits of IP protection shows that there is a tendency towards overprotection of IP in all our societies, particularly in the areas of copyright and patents. The analysis also shows that the optimal rate of protection differs between countries and that it can differ across time as countries move through different stages of economic development.

The second linked document - New Zealand's submission - was quite readable and seems fairly rational.

The essays by NZ organisations opposing TPP were also pretty much all interesting reads.