(Speaking) At present, the average price of gasoline in the United States is well below Leonhardt's barely-competitive threshold of about 75-cents per liter.

VOA: standard.2010.02.23

If they're not at the competitive output they could undercut price and take the entire market.

如果他们不按照完全竞争产量生产,就可以通过降低价格来抢占市场

耶鲁公开课 - 博弈论课程节选