The aim of this paper is to present the impact of stock recommendations on the prices in the context of excessive optimism heuristic. The main goal of the conducted analysis is to show that investors on the Warsaw Stock Exchange seem to ignore the economic information that comes with the recommendation report. Also, as the analyzed recommendations are set in the specified economic conditions, authors would like to show that reports are biased with excessive optimism. The research of the structure of recommendations was issued for the biggest companies of the Polish market listed on the Warsaw Stock Exchange from 2009 to 2012. The investigation showed that the ambiguity of the creation methods of analytical reports and differences in valuation of companies causes subjectivism in analysts' assessments, which leads to heuristic effects. According to the authors, the structure of reports and their specificity shows that excessive optimism is an important factor in creation of stock exchange recommendations. Key words: stock recommendations, capital market, behavioral finance, Warsaw Stock Exchange, excessive optimism heuristic. JEL classification: G11, G14, G16, G15 114
IntroductionThe stock exchange recommendations published by brokerage houses are an important part of the capital market. The report of this type is the opinion of the analyst representing financial market institutions, intended to assess the situation of the company in a professional way and to provide customers of these institutions with comprehensive information, allowing gaining advantage over other market participants. Analyst issues recommendation after a detailed assessment of the company, but the implemented methodology makes the recommendation his subjective opinion. At the time of publication on the market, the report is fully opened and accessible for anyone.The impact of recommendations on the quotations of companies has been the point of interest of researchers since the beginning of the twentieth century. Depending on the market and type of security, the obtained results of research on the impact of recommendations seem to be different. The available studies results show that there are different types of approach to the problem of the recommendations impact. Especially their noticeable effect on prices or lack thereof is observed.The research problem set by the authors was an attempt to confirm that stock recommendations have an effect on the stock prices. Secondly they would like to show that excessive optimism heuristic is an important element in the process of constructing recommendations by the analysts. Behavioral context of conducted analyses results from the fact that the target prices and the recommendations themselves are determined not only by mathematical calculations. Despite a number of established procedures and schemes used in the valuation process, the calculations are still based on subjective assumptions and judgments. It should also be noted that final results of the forecasts are adjusted by analysts in a sub...