The paper answers three questions.(1) Does it matter if a central bank suffers a large capital loss? (2) Can the central bank become insolvent? (3) When, how and by whom should the central bank be recapitalised?

The paper considers three methods for eliminating the zero lower bound on nominal interest rates and thus for restoring symmetry to domain over which the central bank can vary its policy rate. They are: (1) abolishing currency (which would also be a useful crime-fighting measure); (2) paying...