Fractional reserve regimes generate fragile banking, and full reserve regimes (e.g., narrow banking) remove fragility at the cost of suppressing the role of banks as lenders. A Central Bank Digital Currency (CBDC) could provide safe money, but at the cost of potentially disrupting bank lending....

Chapter 1. Introduction -- Part I. On Money -- Chapter 2. What is Money: Debt or Equity? -- Chapter 3. The Utility of Money -- Chapter 4. Money in a Sequence Economy -- Chapter 5. Money Creation by Banks -- Chapter 6. Money, Banks and Seigniorage -- Chapter 7. Money Quanta -- Part II. On "Sound"...