Summary: <p>When banks let you take out a mortgage, the money they lend you might come from their reserves. But more often than not, banks turn around and sell your loan to an investor — and make an instant profit. In this episode, all about the secondary market for mortgages. Plus, JPMorgan Chase invests in its brick-and-mortar presence, household debt ticks up, and why China’s stock market is struggling.</p>
