An efficient capital market is one in which security prices adjust rapidly to the arrival of new information and, therefore, the current prices of securities reflect all information about the security. The question of whether capital markets are efficient is one of the most controversial issues in investment research. The overall evidence on capital market efficiency is best described as mixed; some studies support the hypothesis, and others do not.  Study presented in this article tries to answer the question whether Polish Capital Market supports the weak form of efficient market hypothesis.The analysis is based on daily observations of WIG indexes values
in the 2003–2008 period.

1. FULLTEXT: The efficiency of Warsaw Stock Exchange based on the WIG Indexes, Microsoft Office Document, 0.3MB
2. FULLTEXT: The efficiency of Warsaw Stock Exchange based on the WIG Indexes, Microsoft Office Document, 0.3MB

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