Despite the enhanced significance of leadership in the effectual transformation of universities towards sustainability, literature on the role and practices of sustainable leadership (SL) in higher education institutions (HEIs) remains scarce. To address this gap, this study investigated the direct effect of SL on teachers' green learning outcomes (green cognitive, social, self-growth, and satisfaction with university green experiences) in Chinese HEIs, guided by stakeholder theory. Green knowledge sharing was examined as a mediator between SL and green learning outcomes. The direct impact of teachers' green learning outcomes on green innovation (green speed and quality) and green organisational performance (customer green satisfaction, green curriculum development, green responsiveness, green research productivity, and green research ranking) were also analysed. This study also investigated whether green innovation fosters green performance in Chinese HEIs. A quantitative and cross-sectional research method was employed to analyse the data (N = 393). Partial least squares structural equation modelling (PLS-SEM) was applied to execute hypothetical relationships. The results showed that SL directly and positively affected green learning outcomes; however, green knowledge sharing enacted direct-only non-mediation between SL and green learning outcomes. Additionally, green learning outcomes endorsed a direct and positive relationship between green innovation and organisational performance. Similarly, a direct and positive association was found between green innovation and green organisational performance. This study focused on abandoned research, that is, the direct effect of SL on teachers' green learning outcomes in HEIs, revealing that teachers' green knowledge sharing, learning outcomes, and innovation are vital to their green organisational learning and performance. This study examined the direct effects of SL on teachers’ green learning outcomes in HEIs, which is unique to the sector. Further, the investigation of green knowledge sharing between SL and green learning outcomes is a novel contribution. Similarly, the combination of green learning outcomes, green innovation, and green performance in HEIs is original.
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