Wedded bliss or tainted love? Stock market reactions to the introduction of cobranded products

Zixia Cao, Alina Sorescu
Marketing Science,Vol. 32, Issue 6, Pages: 939-959.

We examine whether cobrandingthe practice of using two established brand names on the same productincreases the market value of parent firms. Using data from the consumer packaged goods industry, we document that the average stock market reaction to the announcement of cobranded new products is approximately+ 1.0%. We hypothesize that this reaction is significantly higher than it would have been if these same products were single branded, and we find evidence consistent with this hypothesis. We also examine …
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