当且仅当所有投资者都持有均值-方差有效的投资组合时,市场组合才是有效的。
It’s not whether you’re right or wrong that’s important, but how much money you make when you’re right and how much you lose when you’re wrong.
人工智能的挑战不仅仅是构建能够执行任务的系统,而是构建能够学会执行任务的系统。
The economy of the future is one where growth is decoupled from the consumption of finite resources.
Overfishing is a crisis, but aquaculture done right can be part of the solution.