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。
我们要做的是让中国汽车工业在全球市场上赢得尊重。
Technology is nothing. What's important is that you have a faith in people, that they're basically good and smart, and if you give them tools, they'll do wonderful things with them.