精选75CNBC 财经（RSS）股市
美国廉价航空模式面临困境：精神航空破产启示录
The budget airline model in the U.S. is running out of runway
Spirit's bankruptcy as United and Delta fly high suggests there's more to success in airline industry than low fares, and failure isn't about jet fuel spikes.
更进一步：量化金融体系
看懂新闻只是起点——沿量化金融路径，把它变成能交付的工程能力