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The impact of ratings and other information on the fluctuation of Polish stock indexes

Magdalena Adamczyk ()
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Magdalena Adamczyk: Cracow University of Economics, College of Economics, Finance and Law

Bank i Kredyt, 2020, vol. 51, issue 3, 239-262

Abstract: Information is a critical element in the functioning of financial markets. Credit rating agencies are one of the most important sources of information and their announcements are treated as an indicator of trust in a given entity. The rating itself, as well as information regarding a forecast rating, may lead to significant changes in investment decisions and, as a result, affect stock indexes. The purpose of the article is to identify the impact of ratings and other information on the fluctuation of Polish stock indexes. The subject of the study was a comparison of the announcement dates of rating agencies’ decisions and other information with the fluctuations of selected stock indexes of the Warsaw Stock Exchange in the years 2016–2018. The conducted research allowed to determine the relationship between the date of publication of the ratings and other information and the change in the values of the studied stock indexes..

Keywords: rating; information; stock indexes; perception; behavioural finance (search for similar items in EconPapers)
JEL-codes: G24 G41 G11 (search for similar items in EconPapers)
Date: 2020
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