{"title":"日元贬值背后的因素:为什么日本需要政策转变","authors":"Hideki Nishigaki","doi":"10.1111/ecaf.12701","DOIUrl":null,"url":null,"abstract":"<p>This article analyses the factors underlying the recent depreciation of the yen. Using an autoregressive distributed lag (ARDL) model, I find that approximately half of the decline in the yen's exchange rate against the dollar from the end of 2020 to mid-2024 can be attributed to portfolio balance effects. Income disparity and interest rate differentials between the US and Japan have also contributed to the yen's weakening. This suggests the need for a shift in Japan's economic policy, which should focus on expanding domestic demand and easing pressure on the yen's depreciation.</p>","PeriodicalId":44825,"journal":{"name":"ECONOMIC AFFAIRS","volume":"45 2","pages":"224-243"},"PeriodicalIF":1.8000,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The factors behind the depreciation of the yen: Why Japan needs a policy shift\",\"authors\":\"Hideki Nishigaki\",\"doi\":\"10.1111/ecaf.12701\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>This article analyses the factors underlying the recent depreciation of the yen. Using an autoregressive distributed lag (ARDL) model, I find that approximately half of the decline in the yen's exchange rate against the dollar from the end of 2020 to mid-2024 can be attributed to portfolio balance effects. Income disparity and interest rate differentials between the US and Japan have also contributed to the yen's weakening. This suggests the need for a shift in Japan's economic policy, which should focus on expanding domestic demand and easing pressure on the yen's depreciation.</p>\",\"PeriodicalId\":44825,\"journal\":{\"name\":\"ECONOMIC AFFAIRS\",\"volume\":\"45 2\",\"pages\":\"224-243\"},\"PeriodicalIF\":1.8000,\"publicationDate\":\"2025-05-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ECONOMIC AFFAIRS\",\"FirstCategoryId\":\"91\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1111/ecaf.12701\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ECONOMICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ECONOMIC AFFAIRS","FirstCategoryId":"91","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/ecaf.12701","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ECONOMICS","Score":null,"Total":0}
The factors behind the depreciation of the yen: Why Japan needs a policy shift
This article analyses the factors underlying the recent depreciation of the yen. Using an autoregressive distributed lag (ARDL) model, I find that approximately half of the decline in the yen's exchange rate against the dollar from the end of 2020 to mid-2024 can be attributed to portfolio balance effects. Income disparity and interest rate differentials between the US and Japan have also contributed to the yen's weakening. This suggests the need for a shift in Japan's economic policy, which should focus on expanding domestic demand and easing pressure on the yen's depreciation.
期刊介绍:
Economic Affairs is a journal for those interested in the application of economic principles to practical affairs. It aims to stimulate debate on economic and social problems by asking its authors, while analysing complex issues, to make their analysis and conclusions accessible to a wide audience. Each issue has a theme on which the main articles focus, providing a succinct and up-to-date review of a particular field of applied economics. Themes in 2008 included: New Perspectives on the Economics and Politics of Ageing, Housing for the Poor: the Role of Government, The Economic Analysis of Institutions, and Healthcare: State Failure. Academics are also invited to submit additional articles on subjects related to the coverage of the journal. There is section of double blind refereed articles and a section for shorter pieces that are reviewed by our Editorial Board (Economic Viewpoints). Please contact the editor for full submission details for both sections.