Our purpose in this research was to investigate the role of passion (Vallerand et al., 2003) for a given activity in the quality of interpersonal relationships experienced within the context of that activity in 4 studies. Study 1 demonstrated that a harmonious passion was positively associated with the quality of interpersonal relationships within the context of the passionate activity, whereas an obsessive passion was unrelated to it. Furthermore, in line with the broaden-and-build theory (Fredrickson, 2001), results also showed that positive emotions experienced at work fully mediated the relation between harmonious passion and quality of interpersonal relationships. Obsessive passion was not associated with positive emotions. Study 2 replicated the results from Study 1 while controlling for trait extraversion. Also, in Study 2, we examined the negative mediating role of negative emotions between obsessive passion and quality of interpersonal relationships. Finally, Studies 3 and 4 replicated the results of Study 2 with prospective designs and with objective ratings of interpersonal relationships quality. Implications for the dualistic model of passion and the broaden-and-build theory are discussed.

Passion has long been mentioned in the field of work. This chapter introduces the book by discussing the relevance of studying passion at work. A short history of the passion construct at large is followed by how the passion construct has been understood and studied in organizational research. Following a presentation of the definition of the passion construct, this introductory chapter ends by briefly summarizing the perspective of each chapter, thereby outlining the contribution of each one.

Purpose – The present research aimed to conceptually position passion for work as a predictor of HWI, as well as to assess the short and long-term influence of passion for work on workers' satisfaction, depression and turnover intentions. In addition, the paper tests whether the effects of passion for work were independent from those of work motivation. Design/methodology/approach – Hypotheses were tested in two field studies in work settings. The first study (n=2,393) was cross-sectional while the second study (n=335) used a prospective design. Findings – Harmonious passion was positively related to positive individual outcomes – higher work satisfaction, lower depression – and organizational outcomes – lower turnover intentions. Negative consequences – depression and turnover intentions – were positively related to obsessive passion. Furthermore, passion for work was found to be a distinct concept from work motivation as the above findings held even when controlling for work motivation. Research limitations/implications – Applications are limited to teachers. Only self-reported measures were used. Originality/value – The present research contributes significantly to the organizational and passion literature by showing that HWI may lead to either positive or negative outcomes depending on HWI's underlying motivational force, namely harmonious or obsessive passion. In addition, the present findings yield the first empirical evidence that passion and motivation are distinct but related concepts. In sum, findings from both studies provide valuable insights into the dynamics of passionate workers who are heavily invested in their work.

Performance-based financing (PBF) is a common health system reform approach in low and middle income countries at present. Although increasing evidence on the effectiveness of PBF and knowledge of principles of good design are available, research is still lacking in regards to other aspects. Among these are a yet limited understanding of the complex role of health worker motivation in PBF and of potential side effects, for instance on intrinsic motivation. Our article aims to support meaningful future research by advancing the theoretical discussion around health worker motivation and PBF. We argue that an in-depth understanding of the motivational mechanisms and consequences of PBF at health worker level are of high practical relevance and should be at the heart of the PBF research agenda, and that predominant unidimensional conceptualizations of health worker motivation and descriptive rather than explanatory research approaches are insufficient to fully understand whether, how, and why PBF schemes alter health workers' motivational structures, mindsets, affect, and behavior. We introduce and apply Self-Determination Theory to the context of PBF as a valuable theoretical framework for future empirical exploration. From this, we conclude that PBF interventions are unlikely to have a generally adverse effect on intrinsic motivation as feared by parts of the PBF community. Rather, we posit that PBF can have positive and negative effects on both intrinsic and extrinsic motivation, to varying degrees depending on the specific design, implementation, and results of a particular intervention and on health workers' perceptions and evaluations of it.

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