Power and interdependence in buyer supplier relationships: A purchasing portfolio approach

Power and interdependence are generally considered to be important concepts for understanding buyer-supplier relationships. Yet, empirical research on power and interdependence in buyer-supplier relationships is still limited. Power and interdependence issues also play an important role in Kraljic's portfolio approach, which is increasingly used by purchasing practitioners for managing different supplier relations and developing appropriate purchasing strategies. In this paper, the concepts of power and interdependence have been quantified for each quadrant of the Kraljic portfolio matrix, using data from a comprehensive survey among Dutch purchasing professionals. Several hypotheses have been tested and the findings largely confirm the theoretical expectations. The observed supplier dominance in the strategic quadrant of the Kraljic matrix is a notable finding, which indicates that even satisfactory partnerships are dominated by the supplier. Therefore, the presumed power symmetry of buyer-supplier relationships in the strategic quadrant seems no longer valid.     

The impact of interfirm relationships on investment: Evidence from the Polish dairy sector

Financial constraints and credit market imperfections are a major constraint on investment, growth and poverty reduction in transition and developing countries. This paper analyses the impact on investments of financial assistance programs as part of interfirm relationships. Our empirical evidence is based on a two-stage survey methodology. Qualitative evidence on dairy companies’ assistance programs was gathered in the first stage through in-depth interviews at the level of the dairy companies. Quantitative data on 290 milk producing rural households in Poland was collected through a random survey in the second stage. The empirical analysis shows that dairy companies have played an important role in financial assistance, in particular for dairy-specific investments. In addition, they had an important indirect impact on farm activities and investments through feed supply and loan guarantee programs.     

Examining sustainability performance in the supply chain: The case of the Greek dairy sector

This paper evaluates the sustainability performance of the Greek dairy chain and the performance of its individual members by using key indicators in relation to efficiency, flexibility, responsiveness and product quality. We assessed the importance of these indicators based on the relevant perceptions of key members of this chain. A structured questionnaire was developed where nineteen sustainability-related issues were examined. Two hundred and fifty three members of the Greek dairy supply chain responded including breeders, manufacturers, wholesalers, retailers and catering companies. Our findings illustrate the immediate need for improvement in many key sustainability performance indicators. They also show the critical role of large dairy manufacturers who are the “sustainability performance champions” in this chain and are the driving force for the implementation of many sustainability initiatives.     

Coordination in inter-network co-opetitition: Evidence from the tourism sector

In this paper, we investigate whether and to what extent formal governance forms such as contracts are a necessary condition to manage coopetitive interactions among networks. We situate our analysis within the tourism sector where we gain insights from an in-depth exemplar case of co-opetition among nearby Italian tourism destinations conjointly developing and marketing an event, the Pink Night Festival. We suggest that coordination mechanisms with varying degrees of formality seem to play a crucial role to manage coopetitive interactions. Subsequently, we identify eight key drivers of formalization of coordination mechanisms in inter-network co-opetitition: 1) leadership; 2) brokerage and pivotal attitude; 3) power asymmetry; 4) focus on strategic thinking; 5) maturity of network management approach; 6) maturity and distance of the marketing approach; 7) past experience working together; 8) cultural, functional and organizational similarities. Last, we develop a conceptual framework highlighting that each stage of the evolution of an inter-network coopetitive relationship has key features in terms of the underlying coordination mechanisms.     

外国经济学家谈电力体制改革

介绍国外经济学家谈电力体制改革的有关论述,重点介绍了政府政策取向的经济学原理。     

Supplier integration in new product development: Computer mediated communication,knowledge exchange and buyer performance

In new product development (NPD), the buyer–supplier relationship is changing. Suppliers are becoming an integral part of the design team. This study investigates the effectiveness of computer-mediated and face-to-face communication channels on knowledge exchange between buyer and supplier firms, and ultimately buyer NPD and market performance. Open innovation literature and media richness theory are used to develop hypotheses which are then empirically tested using data collected from 157 R&D project managers from U.S. manufacturing firms. To date, empirical studies on the link between supplier integration and buyer performance show conflicting results. Structural equation modeling found a significant positive link between knowledge exchange and NPD performance, measured both in terms of effectiveness and efficiency, and a significant positive link between effective and efficient NPD and market performance. A surprising finding is that contrary to media richness theory, email can perform like face-to-face communication transmitting rich information and having a positive relationship to knowledge exchange between buyer and supplier. It was also found that with face-to-face communication, knowledge exchange fully mediates the relationship with effective NPD while with email communication knowledge exchange fully mediates the relationship with efficient NPD. Video conferencing was found to have no significant effect on knowledge exchange and the effect of web-based tools was significant and negative. The implications of these findings in theory and practice are discussed.     

The impact of OEM supplier initiatives on buyer competence development: The moderating roles of collaborative relationship and competitive environment

This paper explains the impact of original equipment manufacturing (OEM) supplier initiatives, which are proactive and deliberate behaviors, on buyer competence development. It argues that these adaptive and proactive behaviors in the outsourcing relationship have a significant impact on buyers’ competence development. The sample population consisted of 800 OEM suppliers in Taiwan. SPSS was used to examine the causal relationships among the variables. The empirical results indicate that OEM supplier initiatives have a positive effect on buyer competence development. In addition, two of three collaborative relationship variables—information sharing and long-term collaboration—foster the relationship between OEM supplier initiatives and buyer competence development. However, the moderating role of competitive environment has a negative effect on this relationship.     

Relationship-specific investments,social capital,and performance: The case of Korean exporter/foreign buyer relations

Relationship-specific investments are addressed as crucial factors for the successful management of the exporter–foreign buyer relationships. It is hypothesized that relationship-specific investments have a positive impact on social capital components such as trust and commitment, which in turn contribute to the relationship and business performance satisfaction between partners. On the basis of our analysis of the relationships between Korean exporters and their foreign buyers, the validity of the roles of relationship-specific investments and social capital are clearly demonstrated. The results provide us with a meaningful implication to the successful management of inter-firm relationships.     

Assessing performance of utilizing organizational modularity to manage supply chains: Evidence in the US manufacturing sector

Recent competition and customization have motivated manufacturers to institute modular organizations to manage supply chains. Proclaimed as a paradigm shift, organizational modularity manifests agility and flexibility to diversify product offerings, utilize production capacity, and allocate network capital and assets. Whereas studies have conceptualized the impacts of modular organizations, large-scale research that examines modularity's impacts on performance are lacking. The study assesses the impacts of organizational modularity in the US manufacturing sector. A set of hypotheses proposes that higher level of modularity is associated with higher efficiency and profitability. I found modularity to negatively affect product specialization and positively impact capacity utilization, ROI and ROA. The findings help to determine the robustness of utilizing the modularity for complex supply chain coordination.     

Cartel sustainability in retail markets: Evidence from a health service sector

This paper studies the role of cost asymmetries and product differentiation on cartel sustainability by drawing data from a failed retail cartel. Unlike the extensive theoretical literature, little empirical evidence exists on these relationships. First, we analyze cartel compliance and find that players are more likely to comply when cost is symmetric and own cost is high. Next, based on a structural model and counterfactual experiments, we show that a cartel price that satisfies all cartel members does not exist. This result indicates an inherent difficulty of sustaining collusion in retail markets with heterogeneous players. We also show that firm heterogeneities, especially product differentiation rather than cost asymmetries, hinder collusion more. Finally, we derive the level of patience (or the discount factor) required for cartel sustainability when firms split profits based on the Shapley value.     

Evolution and challenges of dairy supply chains: Evidence from supermarkets,industries and consumers in Ethiopia

In developing countries the demand for products of animal origin is expected to grow rapidly in the coming years. Using data collected from 200 urban households this study examines the evolution of the dairy market in Ethiopia. In particular, this study suggests that although the Ethiopian dairy market remains extremely thin and volatile, the commercialization of processed dairy products through supermarkets is expanding and is expected to keep doing so in the foreseeable future. Increasing urbanization and corresponding changes in consumer preferences, behaviour and purchasing power are the identified causes for the rise of supermarket-processor dairy chains. This study shows also that emerging dairy chains provide new market opportunities to Ethiopian farmers, but the existence of retail-industrial monopolies and monopsonies jeopardize farmers’ economic benefits to a great extent. The study concludes with some implications for policy and further research.     

Parallel sourcing and supplier performance in the Japanese automobile industry

Japanese auto makers are reported to enjoy high supplier performance through long-term relationships, specific investments, and sole sourcing. Quality management consultants in the U.S. have been strongly advocating adoption of these practices. But economic and management theorists would predict that the combination of a high level of relationship-specific investments and sole sourcing will lead to problems with supplier performance. In fact the Japanese auto makers use a hybrid form of organization we term parallel sourcing. We present a transaction costs model that shows how parallel sourcing provides incentives for supplier performance associated with multiple sourcing while preserving claimed benefits of sole sourcing.     

Universal service subsidies and cost overstatement: Evidence from the U.S. telecommunications sector

Utility subsidies are often defended as promoting universal service. However, specific support formulas may be poorly targeted and/or designed. The U.S. high-cost loop support (HCLS) program (formerly referred to as the Universal Service Fund (USF)), has been a key component of the FCC's USF program. With proposed initiatives for universal access to broadband, it is useful to critically evaluate how the HCLS creates a moral hazard problem. This study finds that companies receiving HCLS subsidies have an incentive to report high costs to the FCC in order to qualify for still higher support payments. Using data from 1136 rural telecom firms in 50 states (1992-2002), this study shows that some companies respond to current incentives by overstating costs (or incurring higher costs) as they approach the subsidy cutoff points. Compared to the no-subsidy group, companies at the point of greatest subsidy jump appear to overstate costs more due to larger marginal benefits. Such perverse incentives need to be recognized in future universal service initiatives.     

Identifying use and non-use values of animal welfare: Evidence from Swedish dairy agriculture

In this study, we sought to identify the use and non-use values that underlie farmers’ decision making with respect to animal welfare, based on in-depth interviews with 50 dairy farmers in Sweden. We identified use values related to: being able to continue the business, earning a living from the business, not being tied to the farm (i.e. having time available for other things), product quality, and work environment. We also identified non-use values related to avoidance of suffering, being able to further improve the welfare of dairy cows, the dairy farmer feeling good him/herself, ethical considerations, a feeling of doing the right thing, and animals eating properly (i.e. functioning as dairy cows should). Understanding the values underlying dairy farmers’ decision making with respect to animal welfare is an important step in understanding why these farmers work with animal welfare. The results are useful in improving communications from authorities and farm advisors to farmers, as a strategy to gain better acceptance for improved animal welfare standards; in designing product certification schemes in the food industry; and in communicating to the public the values influencing production of dairy products.     

Economic growth,telecommunications development and productivity growth of the telecommunications sector: Evidence around the world

This paper studies the relationships between economic growth, telecommunications development and productivity growth of the telecommunications sector in different countries and regions of the world. In particular, this study assesses the impact of mobile telecommunications on economic growth and telecommunications productivity. The results indicate that there is a bidirectional relationship between real gross domestic product (GDP) and telecommunications development (as measured by teledensity) for European and high-income countries. However, when the impact of mobile telecommunications development on economic growth is measured separately, the bi-directional relationship is no longer restricted to European and high-income countries. This study also finds that countries in the upper-middle income group have achieved a higher average total factor productivity (TFP) growth than other countries. Countries with competition and privatization in telecommunications have achieved a higher TFP growth than those without competition and privatization. The diffusion of mobile telecommunications services is found to be a significant factor that has improved the TFP growth of the telecommunications sector in Central and Eastern Europe (CEE).     

The relationship between supplier management and firm's operational performance: A multi-dimensional perspective

This paper presents an empirical study on the multidimensional relationships between supplier management practices and firm operational performance. Specifically, we focus on three supplier management practices, namely strategic long-term relationship, supplier assessment, and logistics integration, and test their effects on four operations performance measures, namely quality, delivery, flexibility, and cost. We use data collected from 232 manufacturing firms in Australia to conduct the study. Ten hypotheses were tested simultaneously using Structural Equation Modeling (SEM) technique. The results show that different supplier management practices have different unique effects on different operations performance measures. Supplier assessment has a positive relationship with quality performance. Both strategic long-term relationship and logistics integration have positive relationships with delivery, flexibility, and cost performance. From a theoretical perspective, this study demonstrates the relative contributions of different kinds of resources (i.e., supplier management practices in our case) to different performance measures. Our research findings provide practical insights for managers to understand the effectiveness, as well as the limitations, of different supplier management practices in enhancing different operations performance measures of firms.     

Organizational ownership,competitive intensity,and firm performance: an empirical study of the Indian manufacturing sector

Emerging countries are using privatization as a key strategy in their drive to become free market economies. Although these ownership changes are rapidly gaining prominence, the academic literature has been equivocal about the performance benefits of private vs. state ownership. The lack of clarity in findings can be largely traced to the underspecification of the models that prior studies have examined. Specifically, prior studies have mostly ignored the central role of competitive rivalry. This paper proposes a model that centers around the interactive, inseparable effects of ownership and competitive rivalry on firm performance. Results of the empirical examination set in India show that competitive intensity moderates the relationship between ownership and performance. Copyright © 2001 John Wiley & Sons, Ltd.     

Economy size and performance: An efficiency analysis in the telecommunications sector

The existing empirical evidence on the relationship between economy size and performance has been inconclusive. This paper employs stochastic frontier analysis to estimate economic measures of efficiency for the telecommunications sectors of 139 economies and examine their relationship with economy size. Simultaneously, it controls for the effects of competition in telecommunications, privatization of state-owned providers, independent regulators, and the quality of political institutions on sector performance. The findings suggest that economy size has a positive but decreasing impact on sector performance. Small economies have an incentive to grow to improve sector performance, though larger size is not a sufficient condition for efficiency. Sector policy and the quality of polity may contribute significantly to sector performance.     

External knowledge search,innovative performance and productivity in the Korean ICT sector

In recent years, Korea’s Information and Communication Technology (ICT) industry has grown rapidly. The prosperity of the ICT industry has brought growing recognition that rising productivity and innovative performance have made major contributions to ensuring competitive advantage in international markets. In this context, recent studies stress the importance of external knowledge for improving both innovative performance and productivity. This paper empirically investigates the effects of firms’ external knowledge search behavior on their productivity as well as their innovative performance in the Korean ICT manufacturing sector. Based on firm-level data from the Science and Technology Policy Institute (STEPI), this study indicates that incremental innovation and productivity are both related to external knowledge search.     

Determinants of Contract Duration: Further Evidence from Coal-Fired Power Plants

Transactions cost theory predicts that the availability of alternatives is one of the determinants of contract duration. Over the last 20 years, the coal market has seen many regulatory changes that have generally increased the number of alternatives in the process of procuring coal. In this paper data from long-term coal contracts for electricity generation signed before 1999 are used to estimate the effect of increasing alternatives on contract duration. Empirical results tend to match transactions cost theory that increased alternatives reduces contract duration. Part of this work was done while Dr. Lange was at the U.S. Environmental Protection Agency (EPA). The opinions expressed in this paper are those of the authors and do not necessarily reflect that of the U.S. EPA.