increasing academic interest is the relationship between brand equity
and brand strategies and stock market information and performance.
Another important topic is the accounting implications of branding.
Stock Market Reactions
Several researchers have studied how the stock market reacts to the
brand equity and marketing activities for companies and products.
Brand Equity—In a classic study, David Aaker and Robert Jacobson
examined the association between yearly stock return and yearly
brand changes for 34 companies during the years 1989 to 1992. They
also compared the accompanying changes in current-term return on
investment (ROI). They found that stock market return was positively
related to changes in ROI. Firms that experienced the largest gains in
brand equity saw their stock return average 30 percent. Conversely,
those ‘rms with the largest losses in brand equity saw stock return
average a negative 10 percent. The researchers concluded that
investors can and do learn about changes in brand equity by learning
about a company’s plans and programs.
Using data for ‘rms in the computer industry in the 1990s, Aaker and
Jacobson found that changes in brand attitude were associated
contemporaneously with stock return and led accounting ‘nancial
performance. They also found ‘ve factors (new products, product
problems, competitor actions, changes in top management, and legal
actions) that were associated with signi’cant changes in brand
attitudes. Madden, Fehle, and Fournier found that strong brands not
only delivered greater returns to stockholders versus a relevant market
benchmark, they did so with less risk.
Marketing Activities—Adopting an event study methodology, Lane and
Jacobson were able to show that stock market participants’ responses
to brand extension announcements, consistent with the tradeos
inherent in brand leveraging, depend interactively and
nonmonotonically on brand attitude and familiarity. In another event
study of 58 ‘rms that changed their names in the 1980s, Horsky and
Swyngedouw found that for most of the ‘rms, name changes were
associated with improved performance; the greatest improvement
tended to occur in ‘rms that produced industrial goods and whose
performance prior to the change was relatively poor. The researchers
interpreted the act of a name change as a signal that other measures
to improve performance will be seriously and successfully undertaken.
A mixed branding strategy (where a ‘rm used corporate names for
some products and individual names for others) was associated with
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