I've never understood this argument. Sure, wealth/trade isn't a zero sum game. That means that the net wealth in the system increases. But that doesn't mean eac

I've never understood this argument. Sure, wealth/trade isn't a zero sum game. That means that the net wealth in the system increases. But that doesn't mean each individual participant in the game is better off. The game night have a large competition component (which is zero sum) and would mean that the participants are not better off.