You can't go a day without hearing about ICOs or Initial Coin Offerings. By taking advantage of a regulatory gap and buzz surrounding cryptocurrencies, companies are raising millions of dollars by launching their own coins. But what's the point of these coins? What are they supposed to do? And what are the pitfalls? On this week's podcast, we talk to Elaine Ou, a blockchain engineer at Global Financial Access and a Bloomberg View contributor about the economics of ICOs, and how previous attempts at creating similar markets ended up as failures.