| dc.contributor.author | Niedzielska, Ewelina | |
| dc.date.accessioned | 2025-12-19T12:31:27Z | |
| dc.date.available | 2025-12-19T12:31:27Z | |
| dc.date.issued | 2025-11-21 | |
| dc.identifier.citation | Niedzielska E., Sentyment informacji niefinansowych jako czynnik objaśniający reakcję rynku kapitałowego, Wydawnictwo Uniwersytetu Łódzkiego, Łódź 2025, https://doi.org/10.18778/8331-900-1 | pl_PL |
| dc.identifier.isbn | 978-83-8331-899-8 | |
| dc.identifier.uri | http://hdl.handle.net/11089/57078 | |
| dc.description.abstract | Monografia poświęcona jest analizie roli informacji niefinansowej w kształtowaniu reakcji rynku kapitałowego. Rozważania umieszczono w kontekście dwóch konkurencyjnych podejść teoretycznych. Pierwszym jest hipoteza efektywności informacyjnej, zgodnie z którą napływające dane znajdują pełne i natychmiastowe odzwierciedlenie w cenach instrumentów finansowych. Drugie podejście reprezentują finanse behawioralne, podkreślające znaczenie uproszczeń poznawczych oraz asymetrii w przetwarzaniu informacji. Jednocześnie coraz większe znaczenie zyskują dziennikarze i media internetowe, stając się istotnym źródłem wiedzy ekonomicznej. Dodatkowo dynamiczny wzrost światowych zasobów danych, zwłaszcza tekstowych, sprawia, że analiza – zawartego w nich sentymentu – staje się ważnym narzędziem identyfikacji czynników wpływających na decyzje inwestorów giełdowych. Monografia łączy cele teoretyczne i empiryczne. W aspekcie poznawczym koncentruje się na identyfikacji i charakterystyce kluczowych paradygmatów oraz koncepcji opisujących mechanizmy powstawania, transmisji i odbioru informacji na rynku kapitałowym. W aspekcie empirycznym koncentruje się na ocenie sposobu dyskontowania informacji przez inwestorów, ze szczególnym uwzględnieniem sentymentu artykułów prasowych dotyczących spółek notowanych na GPW. Analiza objęła ponad 56 tysięcy anglojęzycznych publikacji prasowych z lat 2013–2022, a do oceny reakcji rynku zastosowano podejście słownikowe oraz metodę analizy zdarzeń. Wyniki potwierdzają asymetrię w reakcjach inwestorów na komunikaty pozytywne i negatywne, co dowodzi, że sentyment informacji prasowych jest istotnym czynnikiem objaśniającym zachowania rynkowe, a zarazem stanowi cenny wkład w rozwój badań nad interakcją między perspektywą neoklasyczną a behawioralną. | pl_PL |
| dc.description.abstract | The monograph is devoted to analyzing the role of non-financial information in shaping the reactions of the capital market. The discussion is framed within two competing theoretical approaches. The first is the efficient market hypothesis, which assumes that incoming data are fully and immediately reflected in the prices of financial instruments. The second approach is represented by behavioral finance, which emphasizes the importance of cognitive heuristics and asymmetries in information processing. At the same time, journalists and online media are gaining increasing significance, becoming an important source of economic knowledge. Moreover, the dynamic growth of global data resources, particularly textual data, has made sentiment analysis an essential tool for identifying factors influencing investors’ decisions. The monograph combines theoretical and empirical objectives. On the cognitive level, it focuses on identifying and characterizing the key paradigms and concepts that explain the mechanisms of information generation, transmission, and reception in the capital market. On the empirical level, it addresses the assessment of how investors discount information, with particular attention to the sentiment of press articles concerning companies listed on the Warsaw Stock Exchange. The analysis covered more than 56,000 English-language press publications from 2013 to 2022, applying a dictionary-based approach and the event study method to evaluate market reactions. The findings confirm the existence of asymmetry in investors’ responses to positive and negative news, demonstrating that press sentiment is a significant factor in explaining market behavior, while also contributing to the debate on the interaction between neoclassical and behavioral perspectives in finance. | pl_PL |
| dc.language.iso | pl | pl_PL |
| dc.publisher | Wydawnictwo Uniwersytetu Łódzkiego | pl_PL |
| dc.relation.ispartofseries | Finanse; | |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
| dc.subject | rynek kapitałowy | pl_PL |
| dc.subject | giełda | pl_PL |
| dc.subject | analiza tekstu | pl_PL |
| dc.subject | sentyment tekstowy | pl_PL |
| dc.subject | dziennikarstwo finansowe | pl_PL |
| dc.subject | capital market | pl_PL |
| dc.subject | stock exchange | pl_PL |
| dc.subject | text analysis | pl_PL |
| dc.subject | textual sentiment | pl_PL |
| dc.subject | financial journalism | pl_PL |
| dc.title | Sentyment informacji niefinansowych jako czynnik objaśniający reakcję rynku kapitałowego | pl_PL |
| dc.title.alternative | The Role of Non-Financial Information Sentiment in Shaping Capital Market Reactions | pl_PL |
| dc.type | Book | pl_PL |
| dc.rights.holder | © Copyright by Ewelina Niedzielska, Łódź 2025; © Copyright by for this edition Uniwersytet Łódzki, Łódź 2025 | pl_PL |
| dc.page.number | 188 | pl_PL |
| dc.contributor.authorAffiliation | Uniwersytet Łódzki, Wydział Zarządzania, Katedra Zarządzania Finansami Przedsiębiorstwa | pl_PL |
| dc.identifier.eisbn | 978-83-8331-900-1 | |
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| dc.identifier.doi | 10.18778/8331-900-1 | |