Information Asymmetries and the Role of Information Intermediaries on Capital Markets
by Steffen Bankamp
Date of Examination:2022-09-22
Date of issue:2022-10-10
Advisor:Prof. Dr. Jan Muntermann
Referee:Prof. Dr. Jan Muntermann
Referee:Prof. Dr. Olaf Korn
Referee:Prof. Dr. Lutz M. Kolbe
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Abstract
English
Information asymmetries are common characteristics of the relationship between investors and the management of a firm. These asymmetries can lead to inefficient resource allocation and welfare losses. This thesis aims to improve the understanding of contemporary influences on these information asymmetries. For this purpose, three generic mitigation strategies (screening, involvement of information intermediaries, and signaling) are analyzed. Unlike most of the existing finance literature, which often applies market-based approaches to analyze information asymmetries (e.g., via securities liquidity), this thesis is primarily based on text mining methods. These methods offer a possibility to directly measure the information conveyed in the documents brought to the capital market (e.g., financial statements or analyst reports). The studies of this cumulative thesis are grouped into two research areas. The first research area forms the methodological foundation of the thesis by analyzing the document similarity methodology and its application in finance research. The second research area focuses on the empirical analysis of information asymmetries and information intermediaries on capital markets. Two studies deal with the European MiFID II regulation that requires unbundling of research and trading services. These studies provide evidence of far-reaching effects of the regulatory change on information intermediaries. This applies to financial analysts whose business model is directly affected by regulation and to journalists for whom secondary effects can be observed. Two further studies within the second research area deal with specific information needs (on sustainability and digital transformation). In this context, it is shown how investors can satisfy these information needs through the strategy of screening and how management addresses them through specific signaling.
Keywords: Information Asymmetry; Information Intermediaries; Financial Analysts; Regulation; MiFID II; Text Mining; Document Similarity