Selling, I’ve grown to understand, is more urgent, more important, and, in its own sweet way, more beautiful than we realize. The ability to move others to exchange what they have for what we have is crucial to our survival and our happiness. It has helped our species evolve, lifted our living standards, and enhanced our daily lives. The capacity to sell isn’t some unnatural adaptation to the merciless world of commerce. It is part of who we are.~ Daniel Pink from, https://www.brainpickings.org/2013/02/01/dan-pink-to-sell-is-human/
I believe in a very clear definition of “trade:” An exchange of value in which all parties are left better off; That is to say, trade is not zero-sum.
I believe it’s unnecessary to talk about “good” trade. That “good” is superfluous since any trade that isn’t “good” wouldn’t be trade. (It would be deception, cohersion, etc.)