6月零售销售受汽车和亚马逊Prime Day提振，经济未失动力
Retail sales get a boost from car buyers and Amazon Prime Day. The economy hasn’t lost its mojo.
Sales at retailers rose in June as Americans bought more new cars and spent more online during Amazon’s annual summer sales event, signaling steady growth in the U.S. economy.
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