Lyft and Uber Are Easy to Understand and Hard to Value (Bloomberg)

In one sense, Lyft and Uber are like eBay, Priceline, GrubHub, Craigslist and other “marketplace” businesses that match willing buyers with willing sellers. A marketplace is one of the established business models for technology companies, and investors are relatively comfortable assessing how much to pay for their shares.

More: https://www.bloomberg.com/opinion/articles/2019-02-26/lyft-and-uber-are-easy-to-understand-and-hard-to-value