Always listen to your gut. It knows what your head hasn’t figured out yet.
The only way to learn mathematics is to do mathematics.
Policy should be based on evidence, not ideology.
我们不要从模型开始。我们要从数据开始。我们没有任何先入为主的观念。我们寻找那些可以重复数千次的东西。收敛性交易的问题是,你没有时间尺度。你说最终都会收敛。好的,那何时是最终呢?
Innovation is the market introduction of a new technical process, product, or organizational form.