The Effects of Problem Structure and Team Diversity on Brainstorming Effectiveness

Svenja Sommer and Stylianos Kavadias
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Svenja Sommer: GREGH - Groupement de Recherche et d'Etudes en Gestion à HEC - HEC Paris - Ecole des Hautes Etudes Commerciales - CNRS - Centre National de la Recherche Scientifique
Stylianos Kavadias: college of management - Georgia Institute of Technology [Atlanta]

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Abstract: Since Osborn's Applied Imagination book in 1953 (Osborn, A. F. 1953. Applied Imagination: Principles and Procedures of Creative Thinking. Charles Scribner's Sons, New York), the effectiveness of brainstorming has been widely debated. While some researchers and practitioners consider it the standard idea generation and problem-solving method in organizations, part of the social science literature has argued in favor of nominal groups, i.e., the same number of individuals generating solutions in isolation. In this paper, we revisit this debate, and we explore the implications that the underlying problem structure and the team diversity have on the quality of the best solution as obtained by the different group configurations. We build on the normative search literature of new product development, and we show that no group configuration dominates. Therefore, nominal groups perform better in specialized problems, even when the factors that affect the solution quality exhibit complex interactions (problem complexity). In cross-functional problems, the brainstorming group exploits the competence diversity of its participants to attain better solutions. However, their advantage vanishes for extremely complex problems.

Keywords: brainstorming process; new product development team; ideation; complexity (search for similar items in EconPapers)
Date: 2009
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Citations: View citations in EconPapers (26)

Published in Management Science, 2009, Vol.55, n°12, pp.1899-1913. ⟨10.1287/mnsc.1090.1079⟩

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Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:hal-00491685

DOI: 10.1287/mnsc.1090.1079

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