The development of the capital market made access to information about joint-stock companies on the market universal and free of expenses. Depending on the capital market's extent of effectiveness these information are variously reflected in share prices of joint-stock companies. This article aims to examine whether the announcement of publicly available information – quarterly earnings announcements of joint stock companies including their level – affects share prices of joint-stock companies on the Warsaw Stock Exchange. This article is also to study whether an investor using that fact has an ability to achieve above-average rates of return.
Faculty of Informatics and Electronic Economy, Poznan University of Economic, Niepodleglosci 10, 61-875 Poznan, Poland
Bibliografia
1. Gurgul H.: Analiza zdarzeń na rynkach akcji. Wpływ informacji na ceny papierów wartościowych. Wydawnictwo Oficyna Ekonomiczna, Kraków 2006, pp. 41-48.
2. Pynnönen S.: On regression based event study. Acta Wasaensia 2005, No 143, p. 332.
3. Campbell J.Y., Lo A.W., MacKinlay A.C.: The Econometrics of Financial Markets. Princeton University Press. Princeton, New Jersey 1997, p. 162.
4. Foster G., Olsen C., Shelvin T.: Earnings Releases. Anomalies and the Behaviour of Security Returns. The Accounting Review 1984, Vol. 59, Issue 4, p. 582.