TY - GEN AU - Martínez-Díaz, Ana AU - Mañas-Rodríguez, Miguel A. AU - Díaz-Fúnez, Pedro A. AU - Aguilar Parra, José Manuel PY - 2021 SN - 1660-4601 UR - http://hdl.handle.net/10835/12088 AB - The assumption of new challenges and services to provide, and the evolution of new technologies in public administration, give employees an important perception of ambiguity when carrying out their work. Role ambiguity has been conceptualized as one... LA - en PB - MDPI KW - role ambiguity KW - leader support KW - engagement KW - extra-role performance behaviors KW - moderate mediation model KW - positive psychology TI - Leading the Challenge: Leader Support Modifies the Effect of Role Ambiguity on Engagement and Extra-Role Behaviors in Public Employees ER -