Proactivity dynamics framework

Reference paper:

Grant, A. M., & Ashford, S. J. (2008). The dynamics of proactivity at work. Research in organizational behavior, 28(1), 3–34.

Voice behavior in work groups

Reference paper:

LePine, J. A., & Van Dyne, L. (1998). Predicting Voice Behavior in Work Groups. Journal of Applied Psychology, 83(6), 853–868.