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Research summary: Limited attention has been paid to the crucial role of individuals' motivation and social interactions in capability development. Building on literature in social psychology and behavioral economics that links heterogeneity in individual social motives to social interactions, we explain how the variation, selection, and retention processes underlying a group's deliberate capability development are affected by the composition of the group in terms of individuals' social motives in interplay with the organizational-level motivational levers designed by managers. Our multilevel theoretical model suggests that individual-level heterogeneity leads to the development of capabilities along different paths. For practice, this implies that, according to the composition of the group in terms of social motives, capabilities are more or less technically and evolutionary adequate and a source of business process performance. Managerial summary:We propose that when a group of employees engages in developing one of the firm's capabilities, capability development will follow a different path according to what motivates most of the employees composing the group. We identify and discuss three paths. Two of these paths (convergence and congruence) can help improve business process performance in a stable environment, the third one (open-ended) in a dynamic environment. Our work invites managers to not only think in terms of more or less capability development, but also in terms of capability development path(s): the path(s) in which groups in the firm are currently engaged and the one(s) that are desirable given the firm's objectives and the nature of the environment(s) the firm faces in deploying its business processes.

International audience; There is a growing body of evidence that many entrepreneurs seem to enter and persist in entrepreneurship despite earning low risk-adjusted returns. This has lead to attempts to provide explanations--using both standard economic theory and behavioral economics--for why certain individuals may be attracted to such an apparently unprofitable activity. Drawing on research in behavioral economics, in the sections that follow, we review three sets of possible interpretations for understanding the empirical facts related to the entry into, and persistence in, entrepreneurship. Differences in risk aversion provide a plausible and intuitive interpretation of entrepreneurial activity. In addition, a growing literature has begun to highlight the potential importance of overconfidence in driving entrepreneurial outcomes. Such a mechanism may appear at face value to work like a lower level of risk aversion, but there are clear conceptual differences--in particular, overconfidence likely arises from behavioral biases and misperceptions of probability distributions. Finally, nonpecuniary taste-based factors may be important in motivating both the decisions to enter into and to persist in entrepreneurship.

International audience; Notwithstanding their many environmental, economic and social advantages, renewable energy technologies (RE) account for a small fraction of the world's primary energy supply. One possible cause for this limited diffusion is that private investments in the RE sector, although potentially appealing, remain insufficient. The lack of adequate financing is also a clear indication that our understanding of the process by which investors fund RE ventures is still incomplete. This paper aims to fill in this gap and to shed new light on RE investment decisions. Building upon behavioral finance and institutional theory, we posit that, in addition to a rational evaluation of the economics of the investment opportunities, various non-financial factors affect the decision to invest in renewables. We analyze the investment decisions of a large sample of investors, with the objective to identify the main determinants of their choices. Our results shed new light on the role of institutional and behavioral factors in determining the share of renewable energy technologies in energy portfolios, and have important implications for both investors and policy makers: they suggest that RE technologies still suffer from a series of biased perceptions and preconceptions that favor status quo energy production models over innovative alternatives.