{"title":"新兴欧洲国家的主权信用评级和CDS价差","authors":"Ł. Dopierała, Daria Ilczuk, Liwiusz Wojciechowski","doi":"10.24136/eq.2020.019","DOIUrl":null,"url":null,"abstract":"Research background: Sovereign credit ratings play an important role in determining any country?s access to the international debt market. During the global financial crisis and the European debt crisis, credit rating agencies were harshly criticized for the timing of their announcements regarding ratings downgrades and the ranges of those downgrades. Therefore, it is worth considering whether the sovereign credit rating is still a useful benchmark for investors. \nPurpose of the article: This article examines whether credit rating agencies still provide financial markets with new information about the solvency of governments in Emerging Europe countries. In addition, it describes the differences in the effect of particular types of rating events on financial markets and the impact of individual agencies on the market situation. Our study also focuses on evaluating these occurrences at different stages of the business cycle. \nMethods: This article uses data about ratings events that took place between 2008 and 2018 in 17 Emerging Europe economies. We took into consideration positive, neutral, and negative events related to ratings changes and the outlooks reported by Fitch Ratings, Moody?s, and Standard & Poor?s. We used a methodology based on event studies. In addition, we performed Wilcoxon signed-ranks test and used a logit model to determine the usefulness of cumulative adjusted credit default swap (CDS) spread changes in predicting the direction of ratings changes. \nFindings & Value added: Our research provides evidence that the CDS market reflects information regarding government issuers up to three months before ratings downgrades are announced. Information reported to the market by ratings agencies is only relevant in the short timeframe surrounding ratings downgrades and upgrades. However, positive credit rating changes convey more information to the market. We also found strong evidence that, in the post-crisis period, credit ratings provide markets with less information.","PeriodicalId":45768,"journal":{"name":"Equilibrium-Quarterly Journal of Economics and Economic Policy","volume":"15 1","pages":"419-438"},"PeriodicalIF":5.0000,"publicationDate":"2020-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Sovereign credit ratings and CDS spreads in Emerging Europe\",\"authors\":\"Ł. Dopierała, Daria Ilczuk, Liwiusz Wojciechowski\",\"doi\":\"10.24136/eq.2020.019\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Research background: Sovereign credit ratings play an important role in determining any country?s access to the international debt market. During the global financial crisis and the European debt crisis, credit rating agencies were harshly criticized for the timing of their announcements regarding ratings downgrades and the ranges of those downgrades. Therefore, it is worth considering whether the sovereign credit rating is still a useful benchmark for investors. \\nPurpose of the article: This article examines whether credit rating agencies still provide financial markets with new information about the solvency of governments in Emerging Europe countries. In addition, it describes the differences in the effect of particular types of rating events on financial markets and the impact of individual agencies on the market situation. Our study also focuses on evaluating these occurrences at different stages of the business cycle. \\nMethods: This article uses data about ratings events that took place between 2008 and 2018 in 17 Emerging Europe economies. We took into consideration positive, neutral, and negative events related to ratings changes and the outlooks reported by Fitch Ratings, Moody?s, and Standard & Poor?s. We used a methodology based on event studies. In addition, we performed Wilcoxon signed-ranks test and used a logit model to determine the usefulness of cumulative adjusted credit default swap (CDS) spread changes in predicting the direction of ratings changes. \\nFindings & Value added: Our research provides evidence that the CDS market reflects information regarding government issuers up to three months before ratings downgrades are announced. Information reported to the market by ratings agencies is only relevant in the short timeframe surrounding ratings downgrades and upgrades. However, positive credit rating changes convey more information to the market. We also found strong evidence that, in the post-crisis period, credit ratings provide markets with less information.\",\"PeriodicalId\":45768,\"journal\":{\"name\":\"Equilibrium-Quarterly Journal of Economics and Economic Policy\",\"volume\":\"15 1\",\"pages\":\"419-438\"},\"PeriodicalIF\":5.0000,\"publicationDate\":\"2020-09-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Equilibrium-Quarterly Journal of Economics and Economic Policy\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.24136/eq.2020.019\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ECONOMICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Equilibrium-Quarterly Journal of Economics and Economic Policy","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.24136/eq.2020.019","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ECONOMICS","Score":null,"Total":0}
Sovereign credit ratings and CDS spreads in Emerging Europe
Research background: Sovereign credit ratings play an important role in determining any country?s access to the international debt market. During the global financial crisis and the European debt crisis, credit rating agencies were harshly criticized for the timing of their announcements regarding ratings downgrades and the ranges of those downgrades. Therefore, it is worth considering whether the sovereign credit rating is still a useful benchmark for investors.
Purpose of the article: This article examines whether credit rating agencies still provide financial markets with new information about the solvency of governments in Emerging Europe countries. In addition, it describes the differences in the effect of particular types of rating events on financial markets and the impact of individual agencies on the market situation. Our study also focuses on evaluating these occurrences at different stages of the business cycle.
Methods: This article uses data about ratings events that took place between 2008 and 2018 in 17 Emerging Europe economies. We took into consideration positive, neutral, and negative events related to ratings changes and the outlooks reported by Fitch Ratings, Moody?s, and Standard & Poor?s. We used a methodology based on event studies. In addition, we performed Wilcoxon signed-ranks test and used a logit model to determine the usefulness of cumulative adjusted credit default swap (CDS) spread changes in predicting the direction of ratings changes.
Findings & Value added: Our research provides evidence that the CDS market reflects information regarding government issuers up to three months before ratings downgrades are announced. Information reported to the market by ratings agencies is only relevant in the short timeframe surrounding ratings downgrades and upgrades. However, positive credit rating changes convey more information to the market. We also found strong evidence that, in the post-crisis period, credit ratings provide markets with less information.
期刊介绍:
Equilibrium. Quarterly Journal of Economics and Economic Policy is a scientific journal dedicated to economics, which is the result of close cooperation between the Instytut Badań Gospodarczych/Institute of Economic Research (Poland) and Polish Economic Society and leading European universities. The journal constitutes a platform for exchange of views of the scientific community, as well as reflects the current status and trends of world science and economy.
The journal especially welcome empirical articles making use of quantitative methods in: Macroeconomics and Monetary Economics, International Economics, Financial Economics and Banking, Public Economics, Business Economics, Labor and Demographic Economics, Economic Development, and Technological Change, and Growth.
Current most preferable topics and special issues:
The economics of artificial intelligence: business potentials and risks;
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Sustainable socio-economic development, environmental and ecological economics;
Transition in the energy market (improving energy efficiency, alternative energy sources, renewable energy, energy security).