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Title: Should Companies Jointly Promote their Complementary Products when they Compete in other Product Categories?
Authors: Karray, Salma
Sigue, Simon-Pierre
Keywords: Joint promotions; Game theory; Marketing-OR interface
Issue Date: Dec-2016
Publisher: ScienceDirect
Citation: Salma Karray, Simon P. Sigue, Should companies jointly promote their complementary products when they compete in other product categories?, European Journal of Operational Research, Volume 255, Issue 2, 1 December 2016, Pages 620-630.
Abstract: Joint promotions, whereby companies pool marketing resources to promote their brands, are increasingly used to reduce marketing costs and develop common business opportunities, but formal knowledge about how they should be effectively implemented remains sparse. This paper investigates whether firms should jointly promote their complementary products when they also offer substitute products in another category. It also studies whether companies should partner with allies that can or cannot leverage on joint promotion to create spillover in their product portfolios. Our main findings are as follows. A company’s decision to enter or not to enter into a joint promotion depends on the presence and nature (positive or negative) of promotion spillover in its own product portfolio and the effect of joint promotion on each complementary product demand. Particularly, in the absence of spillover effect, joint promotion may not be mutually beneficial if its direct effects on the two complementary products are asymmetric. On the other hand, depending on its direct effects on the complementary products, joint promotion could be a profit-enhancing activity for the two firms even when it negatively affects the demand of their substitute products by intensifying price competition. Finally, we discuss the implications of branding strategies on the effectiveness of joint promotion. The results in this paper are useful for firms offering products in different categories where joint promotional spillover can occur.
ISSN: 0377-2217
Appears in Collections:Faculty Publications

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