In an attempt to clean up an unruly literature, we specify the necessary and sufficient conditions for household optimality in a model where money is the only …financial asset and provide the relevant proofs. We use our results to analyse when de‡flationary bubbles can and cannot exist. Our...

The purpose of the UDROP proposal is to prevent debt rollover crises for foreign-currency-enominated debt instruments. For such liabilities, there is no international analogue to the domestic lender of last resort or to domestic deposit insurance. UDROP stands for Universal Debt Rollover Option...