Government guarantees can help persuade private investors to finance valuable new infrastructure. But because their costs are hard to estimate and usually do not show up in the government's accounts, governments can be tempted to grant too many guarantees. Drawing on a diverse range of...

The book considers when governments should give guarantees to private investors. After describing the history of guarantees, and the challenges the politics and psychology create for good decisions, the book sets out principles for allocating risk (and therefore guarantees), techniques for...

This paper provides a closed-form Value-at-Risk (VaR) for the net exposure of an annuity provider, taking into account both mortality and interest-rate risk, on both assets and liabilities. It builds a classical risk-return frontier and shows that hedging strategies -- such as the transfer of...