The role of power and trust in spreading sustainability initiatives across supply networks: A case study in the bio-chemical industry

This paper investigates how sustainability spreads across supply networks. Adopting an Industrial Marketing & Purchasing (IMP) Interaction Approach (Håkansson, 1982), we seek to understand sustainability spread as a change process that affects different supply network actors and the impact of power and trust on the spreading process. The paper reports on an in-depth case study of the development of a sustainability initiative in the bio-chemical industry, based on data collection with multiple supply network actors across several tiers, providing unique and rich insights into understanding sustainability spread in a supply network and the perceptions of multiple supply network actors on the role of power and trust on the spreading process. Data collection comprised 20 semi-structured interviews spanning eight supply network actors, supported by secondary data such as archival records. The case study indicates that both coercive and non-coercive power as well as trust, significantly impact the actors' engagement in sustainability initiatives and its wider spread in supply networks. The paper contributes to the literature on sustainable supply chain management and IMP research on sustainability spread and, in particular, provides insights on the impact of power and trust on the process of sustainability spread across dyadic relationships into the wider supply network.     

Towards a typology of collusive industrial networks: Dark and shadow networks

The prevailing understanding of collusive B2B networks is primarily based on the theories of industrial economists and organizational criminologists. ‘Successful’ collusive industrial networks (such as price-fixing cartels) have been seen to endure due to formal managerial structures of coordination and control. In this paper, we seek to transcend and challenge the understanding of these illegal forms of co-opetition by drawing on evidence from an in-depth examination of four price-fixing cartels that were facilitated chiefly by marketers. Our contribution introduces the notion of ‘shadow networks’ (networks where although attempts are made to ensure secrecy, multilateral modes of network structure dominate akin to ‘normal’ managerial endeavours such as joint ventures) and ‘dark networks’ (networks which appear more opaque and secretive through the adoption of bilateral modes of network structure and limited bureaucracy) to illustrate the types of collusive network forms that may exist. In addition, this allows us to build a deeper understanding of collusive network forms and related inter-firm interaction for an industrial marketing audience. We provide implications for marketing practice, theory, and policy. Specifically, we outline how organizations and the marketing function can perform self-administered antitrust audits in order to help avoid breaches of antitrust. Further, we consider the importance of the two forms of collusive inter-firm networks uncovered where marketers have attempted to render these secret from antitrust agencies, introducing a relatively new line of inquiry to the industrial marketing literature.     

Design of the optimal feeding policy in an assembly system

This paper describes an innovative and integrated approach to component management optimization within a production/assembly system. In a mixed-models assembly process the handling of parts and components for each work station represents a substantial variable that can greatly affect job duration and efficiency. This paper is strictly related to Assembly to Order/Manufacturing to Order (ATO and MTO) systems, where lead time has to be very short and flexibility is at its maximum level. In Assembly to Order (ATO) or Make to Order (MTO) systems, the production is increasingly getting more customized in response to the demand, thanks to the progresses reached in both manufacturing and information technologies. It is becoming increasingly possible to assemble or make products specifically in response to the requests of either end customers or retailers. As a consequence of such customization, the design of the whole system must take into direct account several elements: parts warehouses location, feeding policies and feeding systems. In some cases the collection of parts and components required picking activities, in other the movement of entire units load.In several instances experts have analyzed the problems about material centralization/decentralization, storage policies and assembly feeding problem in different and independent ways, while the problem needs an integrated approach. While many researches regarding components allocation problems in ATO and MTO systems, did not consider feeding policies, material picking, packing activities and vehicles optimization, this paper cover focuses on filling such gap using an integrated framework that considers both aspects of the problem: the centralization/decentralization of components in order to minimize the total storage costs and the right feeding policies.Feeding problems in assembly lines are some of the most important aspects to consider during the analysis and design of an assembly system, to allow the maximization of efficiency and flexibility. To reach such goals, a multi-factorial analysis has been carried out during this experiment and will validate the introduced framework. An industrial application of the introduced framework is illustrated to explain its real significant production implication.     

The impact of network configurations on value constellations in business markets — The case of an innovation network

A growing body of scholars are advocating a better understanding of how value is created in business networks, rather than merely in business relationships or at the level of single actors. Among such networks, innovation networks, i.e. the configurations of strategic entrepreneurial nets aimed at improving the effectiveness of innovation performance, have come under scrutiny in the business marketing literature. However, research that explicitly connects value considerations with innovation network configurations is still in its infancy, with empirical evidence being notably scarce. This study is aimed at identifying if and how network configurations affect value constellation aspects in business networks, in terms of value recipients and value outcomes. We interviewed key informants representing 46 high-technology entrepreneurial firms co-located in an innovation network (Daresbury Science and Technology Park — UK). Our study identifies that different network configurations can co-exist in the same overall network; these, nevertheless, are not alternative independent structures, but rather they interact with each other through actors spanning their boundaries. Our study thus provides an understanding of network configurations relating to specific value consequences, but also provides evidence relating to the interactions between different configurations. By doing this, we establish a bridge between a business marketing and a strategy perspective on value in networks. Important managerial implications and implications for policy makers also emerge from our study.     

Modeling defaults of companies in multi-stage supply chain networks

The interest in supply chain networks and their analysis as complex systems is rapidly growing. The physical approach to the topic draws on the concept of heterogenous interacting agents. The interaction among agents is considered as a repeated process of orders and production. The dynamics of production in the supply chain network which we observe is nonlinear due to the random failures in processes of orders and production. We introduce an agent-based model of a supply chain network which represents in more detail the real economic environment in which firms operate. We focus on the influence of local processes on the global economic behavior of the system and study how the proposed modifications change the general properties of the model. We observe collective bankruptcies of firms, which lead to self-emerging network structures. Our results give insight into the dynamics of default processes in supply chain networks, which have important implications both for risk managers and policy makers. Based on the simulations we show that agent-based modeling is a powerful tool for optimization of supply chain networks.     

A simple technique for the optimization of lay-out and location for chemical plant safety

A computer program to optimize the use of land and ensure safe operation of plant. A logical process flow is maintained, while the position of plant items is optimized using a hill-climbing technique. A number of quantitative techniques exist for the measurement of hazard values for comparison of process routes in chemical plant design and operation. Such numerical values can also be used as a basis in lay-out considerations. There is a need for a simple technique, which allows for the optimization of separation distances between plant by determining the minimum requirement for safe operation. This requirement determines the cost of land and that of piping and control lines. It is then possible to carry out economic comparisons between using separation distances and the installation of mobile and fixed prevention and protection systems. An optimization technique based on a modified hill-climbing method is described.     

现代制造系统环境下的质量信息技术

企业为了确保在激烈的市场竞争中取胜，必须运用信息技术、计算机技术等先进技术提高企业质量管理的水平，增强质量保证和质量控制的有效性。现代制造技术系统CIMS的质量保证系统是在网络数据库的支持下，从产品设计、开发，到售后服务全生命周期中对质量有关的数据进行有效的采集、处理、评价和决策，对质量管理、质量保证、质量控制活动进行有效的管理，实现企业质量管理的整体优化．以达到全面满足顾客要求，提高市场竞争能力的目的。     

The mixed blessing of a deregulatory endpoint for the public switched telephone network

Receiving authority to dismantle the wireline public switched telephone network (PSTN) will deliver a mixture of financial benefits and costs to incumbent carriers and also jeopardize longstanding legislative and regulatory goals seeking ubiquitous, affordable and fully interconnected networks. Even if incumbent carriers continue to provide basic telephone services via wireless facilities, they will benefit from substantial relaxation of common carriage duties, no longer having to serve as the carrier of last resort and having the opportunity to decide whether and where to provide service. On the other hand, incumbent carriers may have underestimated the substantial financial and marketplace advantages they also will likely lose in the deregulatory process. Legislators and policy makers also may have underestimated the impact of no longer having the ability to impose common carrier mandates that require carriers to interconnect so that end users have complete access to network services regardless of location.This paper will identify the potential problems resulting from prospective decisions by National Regulatory Authorities (NRAs), such as the United States Federal Communications Commission (FCC), to grant authority for telecommunications service providers to discontinue PSTN services. The paper also will consider whether in the absence of common carrier duties, private carriers providing telephone services, including Voice over the Internet Protocol (VoIP), voluntarily will agree to interconnect their networks. The paper will examine three recent carrier interconnection issues with an eye toward assessing whether a largely unregulated marketplace will create incentives for carriers to interconnect networks so that consumers will have ubiquitous access to PSTN replacement and other broadband services.The paper concludes that private carrier interconnection models and information service regulatory oversight may not solve all disputes, or promote universal service public policy goals. Recent Internet interconnection and television program carriage disputes involving major players such as Comcast, Level 3, Fox, Cablevision and Google point to the possibility of increasingly contentious negotiations that could result in balkanized telecommunications networks with at least temporary blockages to desired content and services by some consumers.     

基于无线局域网标准的天然气长输管道通信系统的整合

通信系统在天然气长输管道的生产运营中起着至关重要的作用。目前陕西省天然气股份有限公司通信网由公司总部、西安、延安、杨凌分公司及22个输气场站等多个不同的独立建设的系统构成,各自独立建网形成了一个个“信息孤岛”。采用基于无线局域网标准的VOIP系统整合陕西省天然气股份有限公司通信网,一方面可使闲置的带宽得到充分利用．另一方面也能有效降低系统内部通信费用,有效消除通信障碍,提高工作效率和企业管理水平。     

Development of a Network-location-model for the Economic Optimization of Local Heating Systems in Urban Chile

Cogeneration of heat and electricity is an important pillar of energy and climate policy. To plan the production and distribution system of combined heat and power (CHP) systems for residential heating, suitable methods for decision support are needed. For a comprehensive feasibility analysis, the integration of the location and capacity planning of the power plants, the choice of customers, and the network planning of the heating network into one optimization model are necessary. Thus, we develop an optimization model for electricity generation and heat supply. This mixed integer linear program (MILP) is based on graph theory for network flow problems. We apply the network location model for the optimization of district heating systems in the City of Osorno in Chile, which exhibits the “checkerboard layout” typically found in many South American cities. The network location model can support the strategic planning of investments in renewable energy projects because it permits the analysis of changing energy prices, calculation of break-even prices for heat and electricity, and estimation of greenhouse gas emission savings.     

Design charts for two-phase flashing flow in emergency pressure relief systems

The design charts of this paper apply to the high velocity flow of a boiling liquid and its vapor during two-phase emergency pressure relief events. These charts are used to size relief system components to handle a given minimum relief flow requirement. This flow requirement is determined by computer simulation programs such as that described in [1], or by special-case models [2, 3, 4]. Though intended for use in sizing pressure relief systems, the charts are applicable to high-velocity flashing flow problems.     

Community response grids: E-government, social networks, and effective emergency management

This paper explores the concept of developing community response grids (CRGs) for community emergency response and the policy implications of such a system. CRGs make use of the Internet and mobile communication devices, allowing residents and responders to share information, communicate, and coordinate activities in response to a major disaster. This paper explores the viability of using mobile communication technologies and the Web, including e-government, to develop response systems that would aid communities before, during, and after a major disaster, providing channels for contacting residents and responders, uploading information, distributing information, coordinating the responses of social networks, and facilitating resident-to-resident assistance. Drawing upon research from computer science, information studies, public policy, emergency management, and several other disciplines, the paper elaborates on the concept of and need for CRGs, examines related current efforts that can inform the development of CRGs, discusses how research about community networks can be used to instill trust and social capital in CRGs, and examines the issues of public policy, telecommunications, and e-government related to such a system.     

基于WOA-LSTM的窄带通信网网络时延预测算法

为了给窄带通信网的链路选择及协议的智能切换提供实时参考,设计了 一种基于鲸鱼优化算法(WOA)和长短期记忆神经网络(LSTM)的窄带通信网网络时延预测算法.首先对实测数据样本进行标准化处理,以LSTM神经网络算法的均方根误差函数的倒数作为适应度函数;其次采用鲸鱼优化算法对LSTM神经网络的学习率、隐含层神经元个数进行优...     

Supply network dynamics as a source of new business

Supply networks where operational control extends well over organizational boundaries have emerged in industries producing relatively complex and customized products with tight profit margins. Products like ships, automobiles and telecommunication systems incorporate complex design and engineering skills that are produced through a tier-structured, multi-level supply networks. Efficiency in these networks has stemmed from specialization and cost efficiency in individual value adding operations. This paper demonstrates how supplier networks have evolved and how the inherent dynamics of these networks generate constantly new business opportunities for fast moving companies with a clear focus on operational efficiency. We use action research methodology on cases from the shipbuilding and constructions industry to document some of the dynamic features of supply networks. This insight is then applied to the electronics manufacturing services business to explain the fundamentals of successful operations in this highly competitive business with ever narrowing margins. In this dynamic market of contract manufacturing companies with constant focus on the reduction of production lead times by incorporating value added operations either physically or logically to maintain and recreate profitable business. To succeed in doing this, issues related to industrial parks, local tacit knowledge and reverse/repair logistics must be managed in cross-organizational manner. We conclude that there is an ever-changing limit to the expansion of supplier networks through specialization and cost efficiency, and that at one point contracting and integrating parts of the supply network will create operationally outperforming business models that further boost the inherent dynamics of supply networks.     

Network board continuity and effectiveness of open innovation in Swedish strategic small-firm networks

Increasing adoption of open innovation as an alternative route to research and development necessitates the development of new ways to organize innovation, as well as reassessment of existing ways. Much like traditional corporations that subscribe to the closed innovation paradigm, novel organizational arrangements targeting open innovation, such as small-firm networks, employ boards to effectively manage joint research-and-development activities. These boards are similar yet different from traditional corporate boards; as such, they may have different requirements for proper functioning. We use 5-year longitudinal data on 53 Swedish strategic small-firm networks to investigate how the boards should be organized to help improve the innovative status of network participants. We expand the set of tools available for effective organization of the boards' operations and emphasize the effects of network board continuity (rates of renewal) on network members' innovative performance. We argue that the relationship is curvilinear (U-shaped) and demonstrate that it is more pronounced in larger networks.     

Innovation network trajectories and changes in resource bundles

This paper reports on an investigation into how changes in network resource bundles influence the success of innovation networks and how they change trajectories over time. Innovation networks are complex adaptive systems, and this paper uses a fuzzy set theory simulation methodological approach to capture complexity. The findings indicate that the interdependencies between knowledge variables and financial resources are the greatest contributor to high performing innovation networks, whereas the loss of social capital and its interdependency with the environment are the largest contributors to declines in innovation network performance. The paper suggests a more nuanced role for social capital within innovation networks and, importantly, highlights the sequencing of knowledge contributions, which take low performing innovation networks to high performing innovation networks.     

An integrated production–distribution model for the dynamic location and allocation problem with safety stock optimization

The design and management of a multi-stage production–distribution system is one of the most critical problems in logistics and in facility management. Companies need to be able to evaluate and design different configurations for their logistic networks as quickly as possible. This means coordinating the entire supply chain effectively in order to minimize costs and simultaneously optimize facilities location, the allocation of customer demand to production/distribution centers, the inbound and outbound transportation activities, the product flows between production and/or warehousing facilities, the reverse logistics activities, etc.Full optimization of supply chain is achieved by integrating strategic, tactical, and operational decision-making in terms of the design, management, and control of activities. The cost-based and mixed-integer programming model presented in this study has been developed to support management in making the following decisions: the number of facilities (e.g. warehousing systems, distribution centers), the choice of their locations and the assignment of customer demand to them, and also incorporate tactical decisions regarding inventory control, production rates, and service-level determination in a stochastic environment. This paper presents an original model for the dynamic location–allocation problem with control of customer service level and safety stock optimization. An experimental analysis identifies the most critical factors affecting the logistics cost, and to finish, an industrial application is illustrated demonstrating the effectiveness of the proposed optimization approach.     

An activities-based approach to network management: An explorative study

Over the last few decades, the industrial marketing literature and the business network literature have promoted a holistic approach to marketing and provided a framework for understanding interorganizational networks. However, our understanding of how interorganizational networks govern themselves when developing innovations is still limited. Most network management literature does not focus on the activities employed by network actors and/or does not recognize that there may be different modes of network management. This study explores how, why and in which combination network management activities are employed in a network and in doing so proposes a new conceptualization of network management. Using primary and secondary data pertaining to eleven innovation projects, this study reveals how network management consists of combinations of (rather than individual) management activities undertaken to manage a network. This study identifies three distinct modes of network management: basically coordinated, control-oriented and reward-oriented. Moreover, this study proposes that network actors try to match the management mode to their prevailing mental model as well as the type of network (e.g. in terms of project innovativeness).     

Catching Fire: Institutional Interdependencies in Union‐Facilitated Knowledge Diffusion

I find that school union representatives’ ‘boundary spanning’ communications throughout the school district predict the diffusion of knowledge between schools. Hence, my data reveal school union representatives as critical conduits for improvement‐related knowledge transfer and innovation. Yet, I also find that these external networks interact strongly with the level of workforce participation characterizing each school: The effects of external networks on internal knowledge diffusion are considerably stronger in more participative schools compared to less participative schools. This research contributes to industrial relations scholarship by demonstrating how union‐related institutions can foster unique social structures that directly strengthen innovation‐related capabilities, as well as how the efficacy of these networks depends on managerial norms at different areas of the organization. This study is also of timely practical relevance at a time when labour unions are increasingly painted as obstacles to, rather than potential facilitators of, improvement and innovation.     

Making sense of network dynamics through network pictures: A longitudinal case study

There have been a number of attempts to describe and analyse networks and company positions in them and to help companies to manage or change their “network position” [ [H?kansson & Snehota, 1995] and [Ford et al., 2003]]. But most of these have confined their attention to a particular point in time or have looked at network evolution over a restricted time period, such as Lundgren (1995) [Lundgren, A. (1995) Technological Innovation and Network Evolution. Routledge, London and New York.] and Andersson (1996) [Andersson, Per (1996), The emergence and change of Pharmacia Biotech 1959-1995. The power of the slow flow and the drama of great events, doctoral thesis, Stockholm School of Economics, Stockholm.]. This paper is based on the idea that insights into the dynamics and evolution of networks and companies may be found by taking a longer term perspective. It uses historical documents and correspondence to examine the evolution of a network and of a single company within it over a period of close to a century. The paper highlights the fact that networks and networking are not modern inventions, but are intrinsic to the nature of business activity. The case study also provides illustration of a number of network phenomena, such as network position, networking and the paradoxes that are endemic in networks. Finally, the paper concludes with some lessons that may be drawn from the case for successful management in a network.