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Rethinking Leadership Influence: The Moderating Role of Transformational Leadership in the Relationships Among Perceived Organizational Support, Psychological Mechanisms, and Extra-Role Behavior in Thailand’s Luxury Hotel Sector

Author

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  • Kraiwut Nuchpramool

    (Graduate Institute of Tourism Management, National Kaohsiung University of Hospitality and Tourism, Kaohsiung 812301, Taiwan)

  • Robert Li-Wei Hsu

    (Department of Hospitality and M.I.C.E Marketing Management, National Kaohsiung University of Hospitality and Tourism, Kaohsiung 812301, Taiwan)

  • Shang-Pao Yeh

    (Department of Hospitality and M.I.C.E Marketing Management, National Kaohsiung University of Hospitality and Tourism, Kaohsiung 812301, Taiwan)

Abstract

Perceived organizational support (POS) is critical for fostering discretionary service behaviors, particularly in demanding contexts such as luxury hospitality. This study examines how POS influences extra-role behavior (ERB) among frontline hotel employees by testing the mediating roles of job embeddedness (JEM), leader–member exchange (LMX), and work engagement (WEN), along with the moderating role of transformational leadership (TFL). Drawing on Conservation of Resources (COR) theory, survey data were collected from 170 full-time employees in five-star luxury hotels in Bangkok, Thailand, and analyzed using PLS-SEM. The results indicate that POS significantly predicts JEM, LMX, and WEN, and that each of these mechanisms, in turn, positively affects ERB. Moderation analysis further shows that TFL weakens the JEM–ERB link but strengthens the LMX–ERB relationship, while its interaction with WEN is nonsignificant. These findings suggest that structural mechanisms (POS and JEM) and relational quality (LMX) exert stronger effects than affective engagement in shaping discretionary service contributions. The study supports COR theory by showing that resources such as POS, JEM, and LMX foster discretionary service behavior. However, these effects are context-dependent, with transformational leadership serving as a boundary condition that may either enhance or diminish the translation of resources into extra-role contributions.

Suggested Citation

  • Kraiwut Nuchpramool & Robert Li-Wei Hsu & Shang-Pao Yeh, 2025. "Rethinking Leadership Influence: The Moderating Role of Transformational Leadership in the Relationships Among Perceived Organizational Support, Psychological Mechanisms, and Extra-Role Behavior in Thailand’s Luxury Hotel Sector," Sustainability, MDPI, vol. 17(20), pages 1-27, October.
    • Handle: RePEc:gam:jsusta:v:17:y:2025:i:20:p:9179-:d:1772780
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    References listed on IDEAS

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