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Purpose The marketing mix has been extensively criticised by scholars and practitioners, which has led marketing scholars to redefine the original 4P concept, expand the 4Ps with additional Ps and develop new concepts to replace the marketing mix. However, there is very limited empirical testing assessing the effectiveness of the original marketing mix (4Ps). Design/methodology/approach This research applies a field experiment to assess whether the application of a full marketing mix (4P) is more effective than a promotion only campaign (1P) when aiming to increase fruit and vegetable (FV) intake of 6–13-year-old Finnish children. A total of 15 schools were randomly assigned to 4P, 1P and control settings. Data was collected from schoolchildren using the Day in the Life Questionnaire. Findings A repeated measures analysis involving 1,076 children demonstrated that a full application of the marketing mix (4P) is more effective than a promotion only (1P) campaign in increasing FV intake within children. Originality/value To the best of the authors’ knowledge, this study is the first empirical test of the effectiveness of the commercial marketing mix against a promotion only strategy in social marketing.
Lahtinen et al. (Mon,) studied this question.