Here's the cause of the new housing crisis

The new housing crisis isn't just about homes themselves, but about the land they stand on. At least that's according to Stuart Miller, CEO of Lennar Corp., the second-largest home builder in the US. In a quarterly conference call after the company's earnings, Miller laid out the two biggest underlying reasons for the current shortage in housing supply that is causing the price of houses to soar. NOW WATCH: A psychologist reveals a trick to stop being lazy