As growth slows in emerging markets and stock volatility picks up, there have been some questions about the future of so-called unicorns, or startups with valuations upwards of a billion dollars.  Yesterday on Bloomberg TV, Alan Patricof, co-founder of venture capital firm Greycroft Partners, said there could be troubled times ahead for startups that have so far been much loved by flush investors.  The funds have money. They are overflowing to a certain degree, and I have not heard of any fund not being able to invest because they're out of money. ... The money is there, the institutions have recognized that over a period of time venture capital is a higher-producing asset, the internal rates of return are better than they have in their traditional investments. 

http://www.bloomberg.com/news/articles/2015-09-11/venture-capital-legend-says-trouble-lies-ahead-for-some-of-the-world-s-hottest-startups