The financial crisis that began in 2007 took place in the context of a secular shift from a bank-loan financial system to a capital-markets financial system — that is, from one based on nontradable financial assets, with banks playing the key intermediary role, to one based on tradable...

At the heart of both the modern shadow banking system and the 19th century banking system described by Walter Bagehot is the wholesale money market, with the central bank providing a liquidity backstop. We characterize shadow banking as “money market funding of capital market lending” and...