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Autor:innen: 
Erscheinungsjahr: 
2023
Quellenangabe: 
[Journal:] Journal of Banking and Financial Economics (JBFE) [ISSN:] 2353-6845 [Issue:] 20 [Year:] 2023 [Pages:] 51-62
Verlag: 
University of Warsaw, Faculty of Management, Warsaw
Zusammenfassung: 
The aim of the article is to try to explain the long-term price volatility of KGHM shares. Therefore the paper presents the relationship between KGHM stock prices and High Grade copper prices. The empirical part of the paper uses econometric cointegration analysis. Based on the estimated models, the thesis of the existence of a long-run relationship between the studied variables was confi rmed. Within the framework of econometric analyses, Johansen and Engle- Granger procedures and the Granger test of causality were applied. The study was conducted using monthly data covering quotes from August 2012 to April 2021. In the end, both modeling procedures used led the researcher to convergent conclusions. Moreover very similar values of long-run equilibrium parameter estimates were obtained for both methods. Thus, on the basis, it is necessary to confi rm the main hypothesis formulated at the beginning of the study, that is, in the case of a company operating within the KGHM Polska Mied´z mining industry, the quotation of its shares is long-term dependent on the quotation of HG copper prices.
Schlagwörter: 
causality
KGHM
Johansen procedure
Engle-Granger procedure
cointegration
JEL: 
G17
C01
C5
G1
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