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Do broker/analyst conflicts matter? Detecting evidence from internet trading platforms

Jan Hanousek () and Frantisek Kopriva

International Review of Financial Analysis, 2013, vol. 28, issue C, 86-92

Abstract: We analyze the potential conflict of interest between analysts and brokers associated with each other. In contrast to the existing literature, we do not analyze prediction accuracy and/or biases in analyst recommendations. Instead, we focus our analysis on brokers and examine whether their behavior systematically differs before and after investment recommendations are released. The evolution and dynamics of brokers' quotes and trades are used to test for systematic trading patterns around the release of one's own investment recommendation. In the model we control for brokers' responses to other investment advices and employ a SUR estimation framework. Data from the Prague Stock Exchange are used to demonstrate our methodology. Finding significant and systematic differences in brokers' behavior, we conclude that misuse of investment recommendations is widespread.

Keywords: Conflict of interest; Dealers' market; Emerging markets; Informed trading; Investment recommendations; Trading systems (search for similar items in EconPapers)
JEL-codes: G14 G15 P34 (search for similar items in EconPapers)
Date: 2013
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DOI: 10.1016/j.irfa.2013.02.015

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