The effect of unethical behavior on trust in a buyer–supplier relationship: The mediating role of psychological contract violation

Research on trust in buyer–supplier relationships has tended to focus on the performance outcomes of a trusting relationship, as well as the processes that serve to build trust. Largely absent from the buyer–supplier literature is an in-depth examination of activities that break down trust, and the resulting effect on supplier trust in the buyer. The authors propose and test a model that evaluates psychological contract violations between a buyer and a supplier as a mediating variable of the effect of unethical activities on trust within a partnership. Survey data was collected from 110 tier one suppliers of major corporations in the state of Ohio. Our results show how a supplier's perception of a violation of the psychological contract either partially mediates or fully mediates the relationship between the buyers unethical activity and the suppliers trust in that buyer. We discuss how suppliers may demonstrate bounded ethicality when they overlook perceived unethical behaviors by the buyer.     

Formal control and social control in domestic and international buyer–supplier relationships

Focusing on long-term buyer–supplier relationships, this article addresses two questions: (1) What are the antecedents that lead to the adoption of formal control, social control, or both? (2) What is the nature of the relationship between formal control and social control - are they substitutes or complements? We develop a model to investigate the impact of the length of cooperation and institutionalization on the use of control mechanisms. Further, we argue that in China, formal control and social control may be substitutes in domestic buyer–supplier relationships, but they may be complements in international relationships. Survey data collected nationwide with executives in 380 domestic and 200 international buyer–supplier relationships in China are used to test our hypotheses.     

How does justice matter in achieving buyer–supplier relationship performance?

This study presents an analysis exploring how four types of justice (distributive, procedural, interpersonal, and informational) influence dyadic relationship performance in the buyer–supplier context. Underpinned by loose coupling theory, we build a mediating framework in which we propose that a high level of justice (or fairness) as mutually perceived by both parties drives buyer–supplier relationship performance through bolstered coupling links in mutual knowledge sharing, continuous commitment, and relationship investment. Our survey of 216 paired manufacturers (suppliers) and distributors (buyers) in China generally supports this argument, leading to a conclusion that justice is not a direct determinant of buyer–supplier performance but a critical conduit that nourishes mid-range coupling behaviors, which in turn promotes a successful relationship. Based on findings from this study, firms are encouraged to endorse all four kinds of justice in managing supply chain relationships. However, when constrained by resources, the recommendation for managers is to focus on achieving a high level of perceptual convergence on procedural justice and informational justice with the exchange partner, because mutual perceptions of procedural and informational justice have the strongest effects on coupling behaviors and buyer–supplier relationship performance.     

Shaping buyer–supplier relationships in manufacturing contexts: Design and test of a contingency model

Although the idea that buyer–supplier partnerships can yield considerable benefits to firms is largely diffused among researchers and practitioners, the approach adopted in this paper is that no “one best way” exists in buyer–supplier relationships, but rather a “best way” for each specific exchange context. Hence, this paper proposes a contingency model for shaping and managing buyer–supplier relationships in manufacturing contexts. In order to test the model, an empirical study was performed on a sample of 45 buyer–supplier relationships within the Italian white goods industry. A three-dimensional performance indicator was computed to compare supplier performance achieved within relations matching the model's suggestions with those set differently. The results strongly suggest that suppliers involved in relationships set accordingly to the contingency model are likely to enjoy superior performance.     

Monitoring in service triads consisting of buyers, subcontractors and end customers

Organisations increasingly outsource service delivery to specialist subcontractors. These buyers, their subcontractors and their end customers operate in a triadic service relationship. In these triads, the buyer lacks direct control over service delivery and completely depends on the subcontractor for its performance towards its end customers. Subcontractors are confronted with two principals (buyer and end customer) who may have conflicting objectives.Although traditionally focusing on dyadic buyer–seller relationships rather than triads, Agency Theory provides valuable suggestions on the type of contract to be used and the type of monitoring to be employed. We adopt Agency Theory as a theoretical lens to look at the buyer–subcontractor–end customer triad and develop propositions on the design of contractual arrangements and monitoring activities. We use the results of two cases of service triads to provide some initial validation for these propositions.     

Supplier–supplier relationships in buyer–supplier–supplier triads: Implications for supplier performance

A growing number of studies and evidence from industries suggest that, besides managing the relationship with its suppliers, a buyer needs to proactively manage the relationships between those suppliers. In a buyer–supplier–supplier relationship triad, the buyer, as the contracting entity, influences the suppliers’ behaviors and the relationship between them. By considering the relationships in such a triad, we are able to gain a richer and more realistic perspective of buyer–supplier relationships. In this study, our goal is to examine supplier–supplier relationships in buyer–supplier–supplier triads, focusing on how such relationships impact the supplier performance. We frame the supplier–supplier relationship as co-opetition—one in which competing suppliers work together to meet the buyer's requirements. We investigate the role of the buyer on such relationships, and how the buyer and co-opetitive supplier–supplier relationships affect supplier performance. We find mixed empirical support for our hypotheses. However, we are able to demonstrate the dynamics of supplier–supplier co-opetition in the buyer–supplier–supplier triad. We point out the need for further studies in this area.     

The interaction effect of relational norms and agent cooperativeness on opportunism in buyer–supplier relationships

In this study, we examined the effect of relational norms and agent cooperativeness on opportunism in buyer–supplier relationships. Drawing from the theoretical grounding of transaction cost economics, personality trait theory, and contingency theory, we proposed three distinct perspectives on opportunism mitigation in buyer–supplier relationships: (1) organizationalist, (2) individualist, and (3) interactionist, where relational norms, agent cooperativeness, and the interaction between them, respectively, serve as the key predictors in these three perspectives. The results of replicated experiments indicated that relational norms and agent cooperativeness interact with each other in mitigating opportunism and that the interactionist perspective yielded the highest explained variance in opportunism. This suggests that the interactionist perspective, a multi-level theoretical lens encompassing the dynamic interplay between organization-level and individual-level factors, was a more complete model in explaining opportunism than either the organizationalist or individualist perspectives. The consensus which emerged from post-experimental interviews of purchasing professionals is that agent personalities play an important role in buyer–supplier relationships. Some purchasing professionals had observed that uncooperative agents or personnel turnover in the boundary-spanning functions can substantially undermine even established relational exchanges. These qualitative findings are in line with our theoretical arguments and experimental outcomes.     

Supplier–supplier relationships in the buyer–supplier triad: Building theories from eight case studies

Many researchers have studied how the buying company manages its relationship with suppliers (i.e. buyer–supplier relationship). Extending this genre of study, researchers have recently shown interest in investigating how the buying company manages relationships between the suppliers (i.e. supplier–supplier relationship). In other words, just as the relationship with the suppliers does, the relationships between suppliers have strategic implications for the buyer. We present in this study eight cases that describe supplier–supplier relationship dynamics. Using theory building through case studies, we identify five archetypes of supplier–supplier relationships. Each type of relationship is a unique configuration of the relational characteristics. We also present working propositions that associate the antecedent conditions that lead to these archetypes and eventual performance implications.     

Supplier relationship-specific investments and the role of safeguards for supplier innovation sharing

The vast majority of the supplier innovation literature has focused on how buying firms can effectively “pull” innovations from their suppliers. Yet, we know remarkably little about the factors that contribute to a supplier voluntarily “pushing” innovations to its customers. The present study addresses this research gap in the context of industrial buyer–supplier relationships and with a specific focus on relationship-specific investments. Drawing on theory from the relationship-marketing literature and on transaction cost theory, we devise and test a proposed theoretical model that links the level of a supplier's relationship-specific investments to its sharing of innovative ideas regarding products and processes with customers. The model also considers the role of contract length, relationship age, and buyer–supplier cooperation as possible safeguards. The empirical results suggest that a supplier's relationship-specific investments encourage a supplier to suggest ideas of process innovations but to refrain from suggestions about product innovations. The latter effect, however, can be attenuated by appropriate formal and informal safeguards.     

Supplier satisfaction: Conceptual basics and explorative findings

In the past, supplier satisfaction has not been a major topic of interest within purchasing and industrial management from either a practitioner or an academic point of view. Yet, successfully managing buyer–supplier relationships is difficult without taking the supplier's satisfaction into account. Consequently, analysing supplier satisfaction should take into account interaction processes within buyer–supplier relationships (e.g., exchange of information) as well as the atmosphere within these relationships (e.g., power dependence). This paper aims to explore the construct of supplier satisfaction as a factor of buyer–supplier relationship quality. Supplier satisfaction is defined as a supplier's feeling of fairness with regard to buyer's incentives and supplier's contributions within an industrial buyer–seller relationship. Supplier satisfaction as a complex construct is operationalised through an index, and its determinants are measured using a survey.     

The dark side of buyer-supplier relationships: A social capital perspective

The literature on supply chain management (SCM) has consistently promoted the “bright side” of collaborative buyer-supplier relationships (BSRs). Based on the social capital argument, SCM scholars have investigated how a buyer can gain access to and leverage resources through its collaborative BSRs. Our study extends this research stream by considering the “dark side” of social capital in BSRs. It evaluates how social capital in its cognitive, relational, and structural forms contributes to or impedes value creation within BSRs. Both primary survey measures and secondary objective measures have been used in data analysis. The results show the presence of both the bright side, confirming the existing literature, and the dark side, extending the literature. There is an inverted curvilinear relationship between social capital and performance: Either too little or too much social capital can hurt performance. This study confirms that building social capital in a collaborative BSR positively affects buyer performance, but that if taken to an extreme it can reduce the buyer's ability to be objective and make effective decisions as well as increase the supplier's opportunistic behavior. Our study also examines how a buyer can delay the emergence of the dark side. It opens up new research avenues in the collaborative BSR context and suggests directions for future research and practice.     

Building long-term orientation in buyer–supplier relationships: The moderating role of culture

This research investigates buyer–supplier relationships in international markets. Research and practice have shown that buyer–supplier relationships benefit when partners to the relationship exhibit a long-term orientation. The extant literature suggests that a buyer's trust of a supplier and the supplier's performance affect the buyer's long-term orientation toward the relationship. We propose that the relative effects of trust and performance on long-term orientation are moderated by culture – specifically the individualism/collectivism dimension. Hypotheses are tested on data from two individualist and two collectivist cultures, using responses from over 600 purchasing professionals in the United States, Anglophone Canada, Francophone Canada and Mexico. Taken together, empirical findings suggest that cultural differences warrant consideration in developing successful purchasing strategies.     

Assessing the contingent effects of collaboration on agility performance in buyer–supplier relationships

Several studies in the buyer–supplier relationship literature have addressed the impact of collaboration on agility performance. While some studies have concluded that collaboration leads to beneficial effects, others have questioned the positive effects of collaboration on relationship performance. Drawing on contingency theory and transaction cost economics (TCE), we seek to better understand the linkage among collaboration, trust and agility performance in a buyer–supplier relationship. Further, we study the contingent influence of requirements certainty and supplier asset specificity, two key TCE constructs in buyer–supplier relationships, on the collaboration–agility performance relationship. We show that while trust mediates the impact of collaboration on agility performance, the indirect effect of collaboration on agility performance via trust is significant only beyond a threshold level of collaboration. The theoretical implication of this result is that the performance relationship is non-linear, a result that has not been recognized in current literature. The practical implication is that organizations need to establish a certain level of collaboration before its positive impact can be realized. In addition, we show that the impact of collaboration on agility performance in buyer–supplier sourcing relationships can be positive, negative or neutral depending on the levels of trust, supplier asset specificity and requirements certainty, emphasizing the need to develop contingency theories.     

The effects of volume consolidation on buyer–supplier relationships: A study of Chinese firms

Volume consolidation is a major consequence of supply base reduction. This study explores the relationships between volume consolidation and supply chain outcomes such as buyer coordination costs, supplier performance, buyer environment learning ability, and buyer learning from the supplier. This study also examines the effects of these supply chain outcomes on buyer satisfaction. Based on results derived from an empirical study of 398 Chinese manufacturing companies, it is found that volume consolidation enhances supplier performance, buyer learning from the supplier, and its environment learning ability. It is also determined that coordination costs negatively affect supplier performance and buyer satisfaction. Environment learning ability does not affect buyer satisfaction, while supplier performance and buyer learning from the supplier positively affect buyer satisfaction. As such, the effects of volume consolidation are not limited to enhanced supply chain performance, but also to organizational learning in the supply chain.     

Re-examining the link between fairness and commitment in buyer-supplier relationships

By re-examining the link between fairness and commitment in supply chain relationships, this study elaborates on the existing theory that views fairness only as an antecedent. It proposes that commitment can also precede perceived fairness, thus redefining the link between the concepts as bidirectional in buyer–supplier relationships. The study examines both the buyer and supplier perspectives. Based on interviews at 24 technology industry firms in Finland, this empirical study demonstrates that buyer commitment has a positive impact on how suppliers perceive distributive fairness in the relationship. In turn, this effect is reciprocated by the suppliers through a commitment in the form of relationship-specific investments and continuous improvements that are perceived as fair by the buyer. As a managerial implication the study emphasizes the importance of fairness evaluation to the relationship parties.     

Strategic purchasing and supplier partnerships—The role of a third party organization

This study explored how a credible third party facilitated the development of supplier partnerships. By identifying qualified potential suppliers, serving as a surrogate for legitimacy for supplier firms and providing a market place for the potential partners to meet, the third party organization provided key compensating mechanisms to reduce the power and social distance and overall transaction costs associated with collaborating to effect supplier relationships between the parties. The study contributes to the supply and purchasing literature by integrating the role of third parties into research on buyer–supplier relationships that have so far been viewed predominantly as dyads and by demonstrating how third parties may actually influence relationships between buyers and suppliers. Our findings also provide firms with some guidelines on building successful buyer–supplier partnerships.     

Social capital as a facilitator of successful buyer-supplier performance management

Performance management in supply chains is an increasingly important, rapidly developing but challenging area. It may benefit from sufficient levels of social capital, such as frequent interactions between buyers and suppliers. However, social capital has not yet been studied as a facilitator of performance management. To bridge this knowledge gap, we examine buyer-supplier performance management and social relationship characteristics as perceived by suppliers. We analyze empirical data gathered through a survey of 482 suppliers by employing PLS-SEM and PLS-MGA. The findings elaborate on the role of cognitive, relational, and structural capital in performance management activities within a buyer-supplier relationship. Moreover, the results demonstrate how a supplier's positive perception, in the form of preferred customer status, can be facilitated through performance management activities. The findings reveal that there is a difference in the role of structural and relational capital between key and non-key supplier groups in performance management activities. We conclude that successful performance management in buyer-supplier relationships requires more than simply a system for sharing information. The mature use of performance measurement is also essential, with cognitive capital being especially beneficial in this endeavor.     

Monitoring process quality in off-shore outsourcing: A model and findings from multi-country survey

We investigate how recent advances in information technology and telecommunications have led to real-time monitoring of processes at the site of the provider by a buyer located across the globe. We construct a game-theoretic model of the dynamics of the buyer–supplier interaction in the presence of moral hazard and incomplete contracting. We derive the Minimum Quality Threshold (MQT) below which the provider's output will certainly be inspected. Our findings show that the buyer can pick a level of monitoring and thereby force the provider to exceed the quality level of the MQT in output quality and avoid costly and wasteful inspection. Finally, our model explains why the production of processes that are complex and more prone to errors are actually monitored less by the buyers. We furnish the results of a comprehensive, multi-year, multi-country survey of the efficacy of monitoring in off-shore outsourcing projects and demonstrate strong empirical support for the findings of the model.     

Buyer–supplier relationship's influence on traceability implementation in the vegetable industry

The increasing importance of food safety has made traceability a crucial issue in the agri-business industry. In this article, we have analysed the factors that shape buyer–supplier relationships, and how they influence the traceability of raw materials. In order to do so, first, we have reviewed the literature to develop an analytical framework. Next, we have carried out four case studies on vegetable firms with the purpose of uncovering the variables that characterise buyer–supplier relationships, and their influence on traceability in this sector. Finally, we have compared the observed links with the conceptual framework derived from the literature in order to build an improved model.     

Exploration of congruence in perceptions of buyer–supplier attraction: A dyadic multiple case study

In long-term complex buyer–supplier relationships, many exchanges are non-contractual, a factor that emphasizes the social dimension of the relationship. Previous studies have shown that attraction is a fundamental aspect of the social dimension and a main driver in non-contractual exchanges. Although attraction is a determinant of a relationship, many studies have examined the relationship only from the buyer's or supplier's perspective. Our study extends this research stream by considering the dyadic aspect of attraction and poses the following questions: Does the success of a relationship require that both parties perceive it to be attractive? How important is it to understand how the company looks in the eyes of the other party? In this paper, we explore the dyadic aspect of buyer–supplier attraction by analyzing six cases, two buyer firms and six supplier firms and by conducting a total of 43 interviews. By using cross-case analyses, we develop a set of proposals for explaining how congruence in perceptions of attraction affects relationship success.