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Federal Reserve Bank of San Francisco

07/19/2021 | Press release | Archived content

International Evidence on Extending Sovereign Debt Maturities

Working Papers

2021-19 |July 2021

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Author(s): Jens H. E. Christensen, Jose A. Lopez, and Paul L. Mussche

Portfolio diversification is as important to debt management as it is to asset management. In this paper, we focus on diversification of sovereign debt issuance by examining the extension of the maximum maturity of issued debt. In particular, we examine the potential costs to the U.S. Treasury of introducing 50-year bonds as a financing option. Based on evidence from foreign government bond markets with such long-term debt, our results suggest that a 50-year Treasury bond would likely trade at an average yield that is at most 20 basis points above that of a 30-year bond. Our results based on extrapolations from a dynamic yield curve model using just U.S. Treasury yields are similar.

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Article Citation

Christensen, Jens H. E, Jose A. Lopez, and Paul L. Mussche. 2021. 'International Evidence on Extending Sovereign Debt Maturities,' Federal Reserve Bank of San Francisco Working Paper 2021-19. Available at https://doi.org/10.24148/wp2021-19