Daily emotional labor can impair psychological well-being, especially when emotions have to be displayed that are not truly felt. To explain these deleterious effects of emotional labor, scholars have theorized that emotional labor can put high demands on self-control and diminishes limited regulatory resources. On the basis of this notion, we examined 2 moderators of the daily emotional labor process, namely day-specific sleep quality and individual self-control capacity. In particular, in 2 diary studies (NTOTAL = 171), we tested whether sleep quality moderates the influence of emotional dissonance (the perceived discrepancy between felt and required emotions) on daily psychological well-being (ego depletion, need for recovery, and work engagement). In addition, we examined 3-way interactions of self-control capacity, sleep quality, and emotional dissonance on indicators of day-specific psychological well-being (Study 2). Our results indicate that the negative relations of day-specific emotional dissonance to all day-specific indicators of well-being are attenuated as a function of increasing day-specific sleep quality and that self-control capacity moderates this interaction. Specifically, compared with low self-control capacity, the day-specific interaction of emotional dissonance and sleep quality was more pronounced when trait self-control was high. For those with low trait self-control, day-specific sleep quality did not attenuate the negative relations of emotional dissonance to day-specific well-being. Implications for research on emotional labor and for intervention programs are discussed.

Previous research has provided strong evidence for affective commitment as a direct predictor of employees' psychological well-being and as a resource that buffers the adverse effects of self-control demands as a stressor. However, the mechanisms that underlie the beneficial effects of affective commitment have not been examined yet. Drawing on the self-determination theory, we propose day-specific flow experiences as the mechanism that underlies the beneficial effects of affective commitment, because flow experiences as peaks of intrinsic motivation constitute manifestations of autonomous regulation. In a diary study covering 10 working days with N = 90 employees, we examine day-specific flow experiences as a mediator of the beneficial effects of interindividual affective commitment and a buffering moderator of the adverse day-specific effects of self-control demands on indicators of well-being (ego depletion, need for recovery, work engagement, and subjective vitality). Our results provide strong support for our predictions that day-specific flow experiences a) mediate the beneficial effects of affective commitment on employees' day-specific well-being and b) moderate (buffer) the adverse day-specific effects of self-control demands on well-being. That is, on days with high levels of flow experiences, employees were better able to cope with self-control demands whereas self-control demands translated into impaired well-being when employees experienced lower levels of day-specific flow experiences. We then discuss our findings and suggest practical implications. (PsycINFO Database Record

In the present article, we investigate psychological detachment as a moderator of the positive relationship of self-control demands (SCDs) and indicators of psychological strain. Based on the propositions that a) SCDs are a source of work stress, which draws on and depletes limited regulatory resources, and b) psychological detachment facilitates the recovery of that resource, we expected that psychological detachment attenuates the positive relationships between SCDs and psychological strain (ego depletion, need for recovery, emotional exhaustion and depersonalization). We tested our prediction in two different studies with hierarchical moderated regression analyses. Results of the first study (N= 445) provided strong support for our prediction that psychological detachment buffers the adverse impact of SCDs on strain. In the second study (N=426), we replicated our initial findings and tested the theoretical assertion that psychological detachment is more effective in buffering those stressors that deplete limited regulatory resources (SCDs) in contrast to stressors (job ambiguity), which are considered to cause strain through other mechanisms. Contrastive comparisons of the differential interaction patterns of psychological detachment with stressors that induce self-control efforts and job ambiguity, supported our prediction that psychological detachment is more effective in attenuating the adverse effects of SCDs on psychological strain.

The positive relationship between servant leadership and employees' psychological health: A multi-method approach ** Servant leadership is thought to encourage socially responsible and moral behaviors. In the present article, we test the positive relationship between servant leadership and employees' psychological health. We argue that servant leadership is positively related to employees' health because servant leaders shape employees' needs and create work environments that fulfill these needs. We examine the proposed relationship of servant leadership (a) competing for variance with different well-known stressors, (b) in multiple samples, (c) at the within-and between-person level, and (d) in relation to long-and short-term indicators of strain. On the basis of this multi-method approach we seek to demonstrate that our results are invariant across different methodological conditions. In Study 1 (N=443), we simultaneously tested the between-person level relationships of servant leadership and job ambiguity to emotional exhaustion and depersonalization as the core symptoms of burnout. In Study 2 (N=75), we simultaneously tested the relationships of person-level servant leadership and day-level emotional dissonance to day-level ego depletion and need for recovery as outcomes. The results of both studies demonstrate that servant leadership is negatively related to strain and accounts for unique variance in short-and long-term indicators of strain over and above that explained by well-known job-stressors. Accordingly, servant leadership can be regarded as an important determinant of employees' psychological health.

Recent research has focused on the day-specific adverse effects of stressors at work. Thus, in the present study, we examine the relationships between day-specific work-related self-control demands (SCDs) as a stressor and day-specific indicators of psychological well-being (ego depletion, need for recovery, and work engagement). On the basis of the limited strength model of self-control, we predict that SCDs deplete limited regulatory resources and impair psychological well-being. Furthermore, we propose affective commitment as a buffering moderator of this relationship. Consistent with the broaden and build theory of positive emotions and the selfdetermination theory, we suggest that affective commitment satisfies employees basic psychological needs and provides positive emotions, which, in turn, help restore limited regulatory resources. Thus, affective commitment should buffer the negative relationships between dayspecific SCDs and day-specific psychological well-being. To examine our hypotheses, we conducted a diary study with N = 60 employees over 10 working days and used multi-level models to test our predictions. Our results demonstrated that day-specific SCDs indeed impaired indicators of psychological well-being. Furthermore, affective commitment buffered these adverse relationships; thus, on days with high SCDs, highly committed employees reported higher levels of psychological well-being than did less committed employees.