Exploiting existing resources or exploring new ones is an old dilemma. As exploitation consists in “the refinement and extension of existing competences, technologies and paradigms” (March, 1991, p. 85) and exploration means “experimentation with new alternatives” (March, 1991, p. 85),...

Taking value as the socio-economic analogue of biological or cultural fitness, in this paper I start a study of the interaction between individual-level and group-level explanatory mechanisms by looking for what kind of intra-group relationships obtains given the nature of inter-group...