> Are there statistics about this? It's actually fundamental to Portfolio management theory. [0] > That actually seems like a good thing. Maybe, I don't kno

> Are there statistics about this? It's actually fundamental to Portfolio management theory. [0] > That actually seems like a good thing. Maybe, I don't know. Uber engages in some aggressively competitive business practices, it's possible that because of their investor subsidies they've been able to undermine a number more possibly sustainable new business models around ride sharing. It's impossible to bootstrap in a market where Uber's a competitor. [0] https://en.wikipedia.org/wiki/Efficient_frontier https://en.wikipedia.org/wiki/Efficient_frontier