I mean, to the extent that you're making these short-term bets against your long-term policy, it requires trading and trading is expensive.

我的意思是,在长期策略下进行短期操作,就需要进行交易,而交易是昂贵的

耶鲁公开课 - 金融市场课程节选

So making gumball and making Washington policy?

制作口香糖和在环保总局制定政策的区别？

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