So one way to think about it is, is the expected distance from her of the winning candidates, is: with probability of a half it's herself so that's nothing, No distance, and with probability of a half it's two places away.

所以一种考虑的方法是,预期她与获胜者的距离是,由于她有一半获胜的机会所以没有成本,没有距离,且,距她两个位置远的人有另一半获胜的机会

耶鲁公开课 - 博弈论课程节选

So here I've interpreted these terms here as transport costs, and I've interpreted what makes the products different is the fact that one of them is selling at one of the end of the town, and the other one is selling at the whitehead end of town.

我将这个条件转化成了交通成本,并且我将造成产品的不同转化为,是由于一家公司在城的一边销售,而另一家公司在城的另一边销售

耶鲁公开课 - 博弈论课程节选