Sleiman Haidar, Sarah N.2019-03-182019-03-182019-05-01http://hdl.handle.net/2097/39455In the constantly changing world of work, employees are expected to be proactive by taking initiative and being self-starting, future focused, and change oriented. Consequently, research around proactivity has grown exponentially over the last two decades. However, the relationship with employee well-being has been widely neglected. This research addressed this gap by investigating the dynamics between employee proactivity and subjective well-being, while taking work-related flow into account. With the use of a diary method, this study provided support that proactivity is not necessarily a burden on psychological well-being. Instead, proactivity in its dispositional and behavioral form of task crafting, was found to have a direct impact on optimal work experiences and well-being outcomes such as subjective vitality and positive affect. Acknowledging the complexity of the relationships, this study also tested mediated and moderated paths and provided several theoretical and practical contributions.en-US© the author. This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).http://rightsstatements.org/vocab/InC/1.0/Psychological well-beingProactivity at workTask craftingFlow at workProactive personalityWork and employee well-beingDissertation