Overreaction and underreaction on the BUCHAREST STOCK EXCHANGE
AbstractEfficient Market Hypothesis states that financial markets react instantaneous and unbiased to new information. However, in the last decades empirical researches revealed some anomalies in investors reactions to the events that caused shocks on the financial markets. There are two main hypotheses to describe such behaviors. The first one - Overreaction Hypothesis stipulates that investors overreact on the day when a shock occurs and they correct on the next days by opposite actions. The second one - Underreaction Hypothesis considers that investors underreact on the day of a shock and they apply corrections on the next days by opposite actions. These behaviors are influenced by the nature of events that cause shocks and by some characteristics of the financial markets. In this paper we explore the short-term reactions that followed positive and negative shocks from the Romanian capital market, using daily values of the main indexes from the Bucharest Stock Exchange for a period of time between January 2005 and March 2011. Depending on the horizons taken into consideration and on the nature of the shocks we find evidences for the Efficient Market Hypothesis, Overreaction Hypothesis and the Underreaction Hypothesis. We also find that actual global crisis caused significant changes in the investors’ reactions to the shocks.
Download InfoIf you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
Bibliographic InfoPaper provided by University Library of Munich, Germany in its series MPRA Paper with number 41555.
Date of creation: 12 Apr 2012
Date of revision: 25 Sep 2012
Efficient Markets; Overreaction Hypothesis; Underreaction Hypothesis; Romanian Capital Market;
Find related papers by JEL classification:
- G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading
- G01 - Financial Economics - - General - - - Financial Crises
This paper has been announced in the following NEP Reports:
- NEP-ALL-2012-10-06 (All new papers)
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Fama, Eugene F, 1991. " Efficient Capital Markets: II," Journal of Finance, American Finance Association, American Finance Association, vol. 46(5), pages 1575-617, December.
- Spyros Spyrou & Konstantinos Kassimatis & Emilios Galariotis, 2007. "Short-term overreaction, underreaction and efficient reaction: evidence from the London Stock Exchange," Applied Financial Economics, Taylor & Francis Journals, Taylor & Francis Journals, vol. 17(3), pages 221-235.
- Zarowin, Paul, 1990. "Size, Seasonality, and Stock Market Overreaction," Journal of Financial and Quantitative Analysis, Cambridge University Press, Cambridge University Press, vol. 25(01), pages 113-125, March.
- Lasfer, M. Ameziane & Melnik, Arie & Thomas, Dylan C., 2003. "Short-term reaction of stock markets in stressful circumstances," Journal of Banking & Finance, Elsevier, Elsevier, vol. 27(10), pages 1959-1977, October.
- Eugene F. Fama, .
"Market Efficiency, Long-term Returns, and Behavioral Finance,"
CRSP working papers
340, Center for Research in Security Prices, Graduate School of Business, University of Chicago.
- Fama, Eugene F., 1998. "Market efficiency, long-term returns, and behavioral finance," Journal of Financial Economics, Elsevier, Elsevier, vol. 49(3), pages 283-306, September.
- Eugene F Fama, . "Market Efficiency, Long-Term Returns, and Behavioral Finance," CRSP working papers 448, Center for Research in Security Prices, Graduate School of Business, University of Chicago.
- De Bondt, Werner F M & Thaler, Richard, 1985. " Does the Stock Market Overreact?," Journal of Finance, American Finance Association, American Finance Association, vol. 40(3), pages 793-805, July.
- Fama, Eugene F, 1970. "Efficient Capital Markets: A Review of Theory and Empirical Work," Journal of Finance, American Finance Association, American Finance Association, vol. 25(2), pages 383-417, May.
- Skala, Dorota, 2008. "Overconfidence in Psychology and Finance – an Interdisciplinary Literature Review," MPRA Paper 26386, University Library of Munich, Germany.
- Grossman, Sanford J & Stiglitz, Joseph E, 1980.
"On the Impossibility of Informationally Efficient Markets,"
American Economic Review, American Economic Association,
American Economic Association, vol. 70(3), pages 393-408, June.
- Sanford J Grossman & Joseph E Stiglitz, 1997. "On the Impossibility of Informationally Efficient Markets," Levine's Working Paper Archive 1908, David K. Levine.
- John Cochrane, 2005.
"Financial Markets and the Real Economy,"
NBER Working Papers
11193, National Bureau of Economic Research, Inc.
- Kent Daniel & David Hirshleifer & Avanidhar Subrahmanyam, 1998. "Investor Psychology and Security Market Under- and Overreactions," Journal of Finance, American Finance Association, American Finance Association, vol. 53(6), pages 1839-1885, December.
- Chan, K C, 1988. "On the Contrarian Investment Strategy," The Journal of Business, University of Chicago Press, vol. 61(2), pages 147-63, April.
- Stefanescu, Razvan & Dumitriu, Ramona & Nistor, Costel, 2012. "Short term momentum and contrarian profits on the Bucharest Stock Exchange before and during the global crisis," MPRA Paper 42510, University Library of Munich, Germany, revised 18 Sep 2012.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Ekkehart Schlicht).
If references are entirely missing, you can add them using this form.