LOL, any found efficiency doesnt go to the consumer. The evidence is the widening wealth gap over the last 40 years. Its trickle up economics.

does competition not naturally drive competitors to reduce margins?

	▲	TulliusCicero 43 minutes ago \| parent [-]
		It does, though you need sufficient competition. In particular, it's useful to have new, upstart companies that are 'hungry' for market share, and aren't excessively tied down to old ways of doing things.