Purpose This study aims to assess the impact of an established market orientation on the implementation of green supply chain practices and environmental performance. Design/methodology/approach Data collected from 225 manufacturing managers are analyzed using a partial least squares structural equation modeling methodology. Findings Findings indicate that market orientation both directly and indirectly (through green supply chain management practices) impacts environmental performance. Research limitations/implications The study focuses on the impact of a market orientation on environmental sustainability within the manufacturing sector, thereby limiting generalization to other sectors. Practical implications Manufacturing practitioners are provided with information emphasizing the importance of implementing and maintaining a strong market orientation as a precursor to establishing an environmental sustainability strategy. Social implications The results have important societal implications, in that a marketing approach that leads to the more rapid adoption of environmental sustainability programs within the manufacturing sector is identified. Originality/value This is believed to be the first empirical investigation of the relationship between market orientation and environmental sustainability.

Purpose The purpose of this paper is to empirically assess the combined impact of the ethical environment, organizational trust and workplace optimism on individual performance. Design/methodology/approach A structural model is theorized and data from 250 individuals working for private organizations were analyzed using partial-least-squares structural equation modeling. Findings Both the ethical environment and organizational trust positively impact workplace optimism. Of the ethical environment, organizational trust and workplace optimism, only workplace optimism directly impacts individual performance. The impact of the ethical environment and organizational trust on individual performance is indirect through workplace optimism. Research limitations/implications To the authors’ knowledge, this is the first empirical study to assess the combined impact of the ethical environment, organizational trust and workplace optimism on individual performance. It is important to conduct similar studies to verify these findings. Practical implications An ethical environment and organizational trust foster high levels of workplace optimism that in turn lead to improved employee performance. Originality/value The important role that workplace optimism plays within the ethical climate of organizations is theorized and assessed. This is the first empirical assessment of the mediational role of workplace optimism on the established relationships between ethical environment and individual performance, and organizational trust and individual performance.