I want to get somebody who's near a mike.

找个离话筒比较近的来回答下
Can I get the woman here with the Yale shirt?

那个穿耶鲁校衫的女生你来回答吧
Without a contract there's no means of enforcement.

不是合同就缺乏强制力
All right, so it might be that again,

好的但是我刚才说了强制性的问题
the problem with enforcement, although actually in 1880 America,

虽然说那是1880年的美国
it's not clear that they couldn't have enforced that contract.

当时这种合同是否违法没有明确的界定
So one problem is unenforceability but that might

强制性是一个问题
far off ago that might have been a problem.

但那也是在很久以前的问题
What else? The guy next to her.

还有什么她旁边的同学
If they're not at the competitive output

如果他们不按照完全竞争产量生产
they could undercut price and take the entire market.

就可以通过降低价格来抢占市场
Let's be careful.

请大家注意