Would any game work without rules?
Imagine a game of football without any rules. Take this seriously and you’re left with an undetermined number of people meeting at an unspecified location, to do anything that strikes their fancy.  The economy is very similar. Without basic ground rules, it is difficult to imagine how markets could achieve much of anything, let alone coordinate the world economy. The question is whether governments should set those rules, or whether markets can  provide them spontaneously. How far should property, environment, and labor regulation go to protect us without constraining us?