Alex Lazarow, venture capitalist at Cathay Innovation, says that start-ups in cities around the U.S. and the world are creating their own rules for success. While Silicon Valley companies have sparked key innovations and generated huge wealth over the past few decades, not everyone should use them as a model going forward. In fact, we can learn more from frontier entrepreneurs, who are thinking more creatively about raising capital, sourcing talent, and pursuing social impact. Lazarow is the author of the book "Out-Innovate: How Global Entrepreneurs--from Delhi to Detroit--Are Rewriting the Rules of Silicon Valley."