Event study methodologies in information systems research
O'Leary, Dan
O'Leary, Dan
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Publication Type
Journal article
Editor
Supervisor
Publication Year
2011
Journal
International Journal of Accounting Information Systems
Book
Publication Volume
12
Publication Issue
2
Publication Begin page
Publication End page
Publication Number of pages
Collections
Abstract
Event studies are based on the theoretical framework of efficient capital markets and the notion that security prices include all information available to the market. As a result, announcements made by firms provide to market participants information that can be impounded into the market price. This paper investigates the use of event studies in information systems and accounting information systems research using a three-pronged approach. First, this paper provides a comprehensive survey of research that uses event study methodologies, where the events are announcements made by firms about issues related to information systems, e.g., announcements of the adoption of enterprise resource planning systems and of the effect of security breaches in firms' information systems. Second, this paper summarizes event study methodologies used in prior research, along with some of the key parameters and concerns associated with their implementation. Third, this paper provides remarks on key event study modeling issues, and it offers recommendations to researchers.