The agreement includes goals like removing tariffs on environmental products, but so far only five countries have signed up.
Meanwhile the World Trade Organisation has cut its forecast for trade growth by more than half, and issued a warning that living standards and jobs could take a hit.
Back in New Zealand, the September ANZ Business Outlook Survey shows business confidence falling once again.
So as the US and UK take a step back from the world stage, does it mean lean times for the rest of us, or will something or someone else fill the vacuum?
Herald business editor at large Liam Dann came on the Front Page podcast to discuss these issues, and where it leaves New Zealand.
For the interview, watch the video podcast.
If you have questions about Herald investigations, or want to stay up to date on social media, you can find host Frances Cook on Facebook here, Instagram here and Twitter here.
You can subscribe to this podcast on the podcast apps, including iHeartRadio here, Apple podcasts here, Spotify here, and Google podcasts here.