Emotional exhaustion and innovation at work are two major topics of interest to
organization researchers, employees and employers. However, working conditions that foster
innovation may also heighten employees’ emotional exhaustion. By conducting a two-wave,
longitudinal online study among the German working population (N=320), we analyzed the
longitudinal impact of qualitative overload, unreasonable tasks, social support from a
supervisor, and task variety on emotional exhaustion and innovation based on the
categorization approach from the job demands-resources model research. Longitudinal
structural equation modeling revealed that unreasonable tasks predicted emotional
exhaustion (γ=0.111, p<0.01) and that task variety
predicted individual innovation (γ=0.126, p<0.01) over
time. Social support from a supervisor and qualitative overload, however, did not have any
longitudinal influence on either emotional exhaustion or individual innovation. Rather
unexpectedly, and in contrast to our hypotheses, no diverging effects from working
conditions on emotional exhaustion or innovation could be found. The results demonstrate
that the presence of unreasonable tasks impairs employees’ psychological well-being and
that a high task variety at work leads to innovation. Implications for practice and future
studies are discussed.