Purpose Literature proposes that implementing supplier assessment and supplier collaboration simultaneously may lead to better sustainable performance. The purpose of this paper is to empirically examine the proposition by considering the contingent effects of two contextual factors, the environmental dynamism and the stakeholder pressure on sustainability. Design/methodology/approach Four configurations of governance mechanisms are identified according to the different levels of implementing supplier assessment and supplier collaboration. The performances of the four configurations are compared against the levels of environmental dynamism and stakeholder pressure. The empirical data from the sixth round of International Manufacturing Strategy Survey (IMSS) are used. Findings This paper found that the governance configuration with the highest level of implementing both governance mechanisms leads to the best performance. The synergistic effect that supplier assessment and collaboration complement each other to achieve better performance is verified. However, the synergistic effect holds robust only when the environmental dynamism and stakeholder pressure are high. The synergistic effect vanishes in the social and environmental performance when the environmental dynamism is low. The effect also vanishes in the environmental performance when the stakeholder pressure is low. No synergistic effect was found in business performance. Originality/value This paper reveals the complementarity between supplier assessment and supplier collaboration when they are implemented at a reasonably high level. It also reveals the importance of the fit of governance mechanisms under different external contexts. The results contribute to reconciling the disputes about the effectiveness of governing supplier relationship to achieve the sustainability along a supply chain.

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Purpose The importance of supplier integration (SI) in improving firms’ performance has been previously identified but the effects of SI are complicated, as the relationship between supplier and buyer is full of uncertainty. The purpose of this paper is to re-examine the effects of SI on operations performance from a relational view. Design/methodology/approach Two strategies of integrating suppliers are theoretically presented: information sharing and joint decision making. Hypotheses are then developed on when SI influences operations performance, using product complexity and competitive intensity as moderating factors. The hypotheses are tested using a global survey data set, made up of 763 manufacturing firms from 22 countries. Findings The results indicate a positive relationship between SI and operations performance and that the moderating roles of product complexity and competition intensity are significant, but product complexity does not have significant moderation effects on the relationships between joint decision making and product quality/cost reduction. Research limitations/implications The moderators of product complexity and competitive intensity are not comprehensive. Future study into how and under what circumstances SI has the greatest effect will be of benefit. Originality/value This study makes theoretical contributions by exploring the strategies of SI through a relational view, and examining the effects of SI through the moderating roles of product complexity and competition intensity.

PurposeThere are many studies on the impact of supply chain integration (SCI) on performance. However, the definitions, the measurements, the sample sizes, and scope of both SCI and the performance vary significantly from research to research. Conclusions are not consistent either. Researchers still believe that little is known about the impact of SCI on performance and call for more empirical research. The purpose of this paper is to investigate the impact on quality practices and quality performance of upstream integration with suppliers and downstream integration with customers.Design/methodology/approachThe research is based on the empirical data from a large international survey of over 600 manufacturing companies from 20 countries. An intensive literature review was conducted on the definition and scope of SCI as well as its relationship with quality practice and performances. In total, five hypotheses were formulated and a conceptual model was proposed. Structural equation modeling (SEM) was used to test the hypotheses reflecting and interrelationship among the four variables.FindingsThe research reveals that downstream integration with customers influences both the quality management practice and the quality performance of the company, while upstream integration with suppliers only influences the quality practice but not the quality performance.Originality/valueThis research is different to previous research in three aspects. First, SCI covers both the upstream integration with suppliers and downstream integration with customers. Second, integration measurement covers both material integration and information integration. Third, it considers both quality management practices and quality performance.