Chinese ecommerce giant Alibaba has grown into a powerhouse within China’s fast-growing market, as the equivalent of both eBay and Amazon. Now, as CEO Jack Ma tours the US in preparation for the biggest IPO in history, many are asking what this means for US Internet firms. Will Alibaba be a direct competitor? If so, where? And does Alibaba even have a US market strategy yet?

I sat down with The Wall Street Journal’s Paul Vigna this week to discuss.