There is a weaker condition to trade with 10x better economy. If the other economy is 11 times more efficient in one good but only 9 times more efficient in another by offering to be a trade partner they get closer to their good good efficiency on the bad good. Essentially you need a resource they can exploit you for. They don’t care if you work a buttload for a penny, but you agree to it if your shambling technique is worse than getting screwed over.
There is a weaker condition to trade with 10x better economy. If the other economy is 11 times more efficient in one good but only 9 times more efficient in another by offering to be a trade partner they get closer to their good good efficiency on the bad good. Essentially you need a resource they can exploit you for. They don’t care if you work a buttload for a penny, but you agree to it if your shambling technique is worse than getting screwed over.