There's been a lot of talk about Free Trade. People seem to either know nothing about it, or they seem to either support or oppose it with such passion that if you didn't know any better, you would think they were actually at war.
Now, I often don't like so called "Free Trade Agreements" like NAFTA, TPP, RCEP, CETA, etc. but more often than not my aversion to them tends to be based on toxic copyright provisions and a lack of Fair Use protections, not necessarily the actual macroeconomic effects of the trade deal as a whole.
Thus, I have to ask: what exactly is the argument in favor of Free Trade? What exactly is it trying to achieve? And are there ways a nation can address the negative effects of such deals? And what is Free Trade NOT?