PT - JOURNAL ARTICLE AU - Jennifer Taylor AU - Rachel Kennedy AU - Colin McDonald AU - Laurent Larguinat AU - Yassine El Ouarzazi AU - Nassim Haddad TI - Is the Multi-Platform Whole More Powerful Than Its Separate Parts? AID - 10.2501/JAR-53-2-200-211 DP - 2013 Jun 01 TA - Journal of Advertising Research PG - 200--211 VI - 53 IP - 2 4099 - http://www.journalofadvertisingresearch.com/content/53/2/200.short 4100 - http://www.journalofadvertisingresearch.com/content/53/2/200.full SO - J Advert Res2013 Jun 01; 53 AB - Cross-media campaigns are becoming a norm, yet there is a lack of knowledge on how they impact sales. This paper documents the sales response to cross-media campaigns and finds that, when online advertising is added to a television campaign, the extra reach achieved is primarily duplicated. Regularly a single television exposure stimulates sales among those exposed, with online advertising demonstrating a similar yet less consistent response. We do not find evidence of a synergy in sales impact, where the sum effect of exposure to both television and online is greater than the parts. We highlight challenges with such single-source research.