经济研究应旨在为现实世界的决策提供信息。
最好的想法往往来自于倾听那些最接近问题的人。
Trend-following is not such a good model. It’s simply eroded. Things change and being able to adjust is what made Mr. Simons so successful. “Statistic predictor signals erode over the next several years; it can be five years or 10 years. You have to keep coming up with new things because the market is against us. If you don’t keep getting better, you’re going to do worse.