Over the past few decades, the number of flexible workers has increased, a situation that has captured researchers’ attention. Traditionally, temporary workers were portrayed as being disadvantaged compared to permanent workers. But in the new era, temporary workers cannot be treated as a homogeneous group. This study distinguishes between four types of temporaries based on their contract preference and employability level. Furthermore, it compares them with a permanent group. Whether these groups differ on job insecurity and health-related outcomes in a sample of 383 Spanish employees was tested. Differences in well-being and life satisfaction were found, and the hypotheses were supported. The results point out that the temporary workforce is diverse. Therefore, in order to attain a better understanding of the experiences and situations of these workers, it is preferable not to consider them as one homogeneous group.

Purpose – This paper aims to offer a typology of temporary workers, based on their motives for accepting their work arrangement, which includes voluntary, involuntary and stepping-stone motives, and relate this typology to various individual and work-related variables. Design/methodology/approach – Latent class analysis of 645 European workers was used to construct a typology of temporary workers. Variation of individual and work-related variables between types of temporary workers was analyzed using ANOVA. Findings – The analyses suggest that there are three types of workers: involuntary temporary workers highlight the involuntary motive and the stepping-stone motive; the stepping-stone type stresses the stepping-stone motive only, and the non-involuntary group disagrees with all three motives. Moreover, the groups differed significantly on important work-related variables such as occupational position, tenure, employability, and work-involvement. However, differences in individual variables were limited. Research limitations/implications – The research puts forward a more complex typology of temporary workers than is usually suggested. Moreover, the study shows a non-involuntary group for which temporary employment can become a trap, and hence these workers should be targeted by future policy and interventions. Originality/value – The research offers a typology of temporary workers, which is founded on motivation theory, and existing research on motives for accepting temporary employment.

A supportive upward voice environment is critical in nuclear power plants in order to provide energy in a sustainable manner. In high–reliability organizations, front–line employees’ suggestions and concerns enable the early identification of potential problems that might have catastrophic consequences (e.g., a nuclear accident). Despite this, previous research has mostly focused on person–centered antecedents of upward voice and, to a lesser extent, the influence of the supervisor–subordinate relationship, while neglecting the importance of the organizational context. This study responds to the aforementioned research lacuna. It examined the relationship between participative decision making and upward voice, and the mediating role of trust in leadership in this relationship. Moreover, it further extends previous research by examining the role of safety climate, which is expected to moderate both the direct and the indirect effect of participative decision making on upward voice. The sample was composed of 495 workers from two nuclear power plants from the same organization. Findings supported the hypothesized moderated mediation model: the indirect effect of participative decision making (PDM) on upward voice via trust in leadership was contingent upon the level of the safety climate. The indirect effect became weaker as the safety climate increased. These findings support the relevance of the organizational context.