Title page for ETD etd-06182002-133039

Type of Document Master's Thesis
Author Pearsall, Nels A.
URN etd-06182002-133039
Title Use of Event Studies to Estimate Brand Value: A Comparison of Methodologies
Degree Master of Arts
Department Economics
Advisory Committee
Advisor Name Title
Waud, Roger N. Committee Chair
Lutton, Thomas J. Committee Member
Theroux, Richard Committee Member
  • Intellectual Property
  • Product Tampering
  • Damages
  • Event Study
  • Market Analysis
Date of Defense 2002-05-22
Availability unrestricted
Stock market event studies are often used to estimate the impact of an unanticipated event on stock returns of a company. Traditionally, these analyses focus on developing estimates of abnormal returns attributed to the event or some measure of post-event loss in shareholder value. In 1989 Mark Mitchell used an event study to estimate the impact of the 1982 Tylenol poisonings on Johnson & Johnson’s share returns. Mark Mitchell was able to demonstrate that (1) Johnson & Johnson share returns were significantly impacted by the poisonings, and (2) such an impact translated, at least in part, to a depreciation of brand name capital.

This study sets forth the basic framework of Mark Mitchell’s 1989 analysis and wherever appropriate, provides possible alternatives to his methodologies. Using several alternative approaches including, but not necessarily limited to, consideration of the incremental values associated with the Tylenol brand name, cost to develop the brand, alternative market factors, and changes in income streams I compare changes in brand value to brand name capital depreciation estimated by Mitchell. In some instances the aforementioned approaches are used in conjunction with aspects of Mitchell’s methodology. The results tend to provide more accurate estimates of the loss in brand value possibly associated with the 1982 poisonings.

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