{"title":"国际政府债券投资组合的定价与构建","authors":"Otto Randl, Giorgia Simion, Josef Zechner","doi":"10.1016/j.jfineco.2025.104152","DOIUrl":null,"url":null,"abstract":"<div><div>This paper derives a stochastic discount factor for currency-hedged government bonds of developed markets by projecting returns onto the unconditional mean–variance efficient (UMVE) portfolio. Priced risks of international bonds differ fundamentally from those of currencies. The UMVE portfolio achieves a Sharpe ratio over twice the average of individual markets, with the market price of risk peaking during crises and periods with high inflation dispersion. While bond returns exhibit a strong factor structure, common sources of variation are only weakly connected to priced risks. Hedging unpriced risks in naive or factor-based strategies significantly improves Sharpe ratios, even under portfolio weight constraints.</div></div>","PeriodicalId":51346,"journal":{"name":"Journal of Financial Economics","volume":"173 ","pages":"Article 104152"},"PeriodicalIF":10.4000,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Pricing and constructing international government bond portfolios\",\"authors\":\"Otto Randl, Giorgia Simion, Josef Zechner\",\"doi\":\"10.1016/j.jfineco.2025.104152\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>This paper derives a stochastic discount factor for currency-hedged government bonds of developed markets by projecting returns onto the unconditional mean–variance efficient (UMVE) portfolio. Priced risks of international bonds differ fundamentally from those of currencies. The UMVE portfolio achieves a Sharpe ratio over twice the average of individual markets, with the market price of risk peaking during crises and periods with high inflation dispersion. While bond returns exhibit a strong factor structure, common sources of variation are only weakly connected to priced risks. Hedging unpriced risks in naive or factor-based strategies significantly improves Sharpe ratios, even under portfolio weight constraints.</div></div>\",\"PeriodicalId\":51346,\"journal\":{\"name\":\"Journal of Financial Economics\",\"volume\":\"173 \",\"pages\":\"Article 104152\"},\"PeriodicalIF\":10.4000,\"publicationDate\":\"2025-09-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Financial Economics\",\"FirstCategoryId\":\"96\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0304405X25001606\",\"RegionNum\":1,\"RegionCategory\":\"经济学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"BUSINESS, FINANCE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Financial Economics","FirstCategoryId":"96","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0304405X25001606","RegionNum":1,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"BUSINESS, FINANCE","Score":null,"Total":0}
Pricing and constructing international government bond portfolios
This paper derives a stochastic discount factor for currency-hedged government bonds of developed markets by projecting returns onto the unconditional mean–variance efficient (UMVE) portfolio. Priced risks of international bonds differ fundamentally from those of currencies. The UMVE portfolio achieves a Sharpe ratio over twice the average of individual markets, with the market price of risk peaking during crises and periods with high inflation dispersion. While bond returns exhibit a strong factor structure, common sources of variation are only weakly connected to priced risks. Hedging unpriced risks in naive or factor-based strategies significantly improves Sharpe ratios, even under portfolio weight constraints.
期刊介绍:
The Journal of Financial Economics provides a specialized forum for the publication of research in the area of financial economics and the theory of the firm, placing primary emphasis on the highest quality analytical, empirical, and clinical contributions in the following major areas: capital markets, financial institutions, corporate finance, corporate governance, and the economics of organizations.