Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Securities Law
Lessons From Single-Company Event Studies: The Importance Of Controlling For Company-Specific Events, Scott D. Hakala
Lessons From Single-Company Event Studies: The Importance Of Controlling For Company-Specific Events, Scott D. Hakala
Scott D Hakala
Single-company event studies are commonly employed in applied practice, such as in analyzing market efficiency, reliance, and damages in securities litigation. However, the presence of significant company-specific events among the observations used to estimate the market model results in significantly biased, overstated standard errors (a well-known omitted variables problem) and less reliable coefficient estimates in such studies. This is a frequently over-looked or neglected issue that renders the statistical inferences in single-company event studies employing using more traditional event study techniques biased and often unreliable. This paper demonstrates through simulation and actual examples that, even allowing for errors in implementation, …
Current Economic Issues In Securities Litigation, Scott D. Hakala
Current Economic Issues In Securities Litigation, Scott D. Hakala
Scott D Hakala
This paper discusses the economic framework for determining economic loss in securities litigation and the then current case law. This includes discussions regarding assessing materiality and reliance, the use of event study analyses to identify loss causationg and the interaction of legal and economic principles.