Failure to take account of the mismatch between the assets in defined --benefit pension plans -- primarily equities -- and the liabilities -- deferred fixed annuities -- has long been a major unrecognized source of financial instability. The underfunding problems now facing state and local...

Guarantees of financial contracts, such as loans, deposit insurance, and swaps, pervade the financial system and play an important role in corporate and public finance. This paper develops a framework for analyzing the efficient management of such guarantees in both the private and public...