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The purpose of this paper is to monitor the environmental efficiency of suppliers in the presence of undesirable output and dual-role factors with static and dynamic aspects. Meanwhile, it also aims to explain the main reason for the low efficiency of suppliers.

The authors propose a modified data model considering undesirable output and dual-role factors. The study integrates the modified data envelopment analysis model into the distance function of the Malmquist–Luenberger index. Moreover, this study uses the global benchmark technology to formulate a two-stage model. To verify the validity of this model, a model application is conducted on an automotive spare components company in China.

The results identify the unique status of dual-role factors based on the global optimality of the model and then categorize inefficient suppliers in an individual evaluation cycle. In addition, each supplier is projected on a frontier curve after obtaining the improved data. Furthermore, through the status plot of M-L and its components, this paper concludes that efficiency scale change is the main reason for the gap in ecological performance between different suppliers.

The proposed model considers both undesirable output and dual-role factors; however, variables with different features, such as imprecise, fuzzy and qualitative characteristics, can be embedded into the presented two-stage model.

Evaluating green suppliers through multiple consecutive evaluation cycles will aid a company in effectively managing its key suppliers. Furthermore, the evaluation provides policy guidance for further improvement of suppliers.

The purpose of this paper is to empirically assess the complementary impact of JIT, TQM and green supply chain practices on environmental performance.

Data from a sample of 225 US manufacturing managers are analyzed using a PLS-SEM methodology.

JIT and TQM are directly and positively associated with green supply chain management practices. JIT, TQM and green supply chain practices are complementary in that combined they provide a greater impact on environmental performance than if implemented individually.

The sample is limited to US manufacturing managers, with a low response rate.

Successful implementations of JIT and TQM improvement programs support the implementation of green supply chain management practices leading to improved environmental performance.

The combination of JIT, TQM and green manufacturing practices improves the environment by eliminating all forms of waste and providing customers with eco-friendly products and services.

This study is one of the first to empirically assess the complementary impact of JIT, TQM and green supply chain practices within the context of environmental sustainability.

The purpose of this paper is to develop and empirically assess a comprehensive operations and supply chain management (SCM) model. The theorized model incorporates supply chain market orientation, Just-in-Time (JIT) and Total Quality Management (TQM) as antecedents and agile production (AP) and green SCM (GSCM) practices as consequences.

Data from a sample of 136 US manufacturing managers were collected via an on-line survey firm. A partial least squares structural equation modeling is used to assess the efficacy of the theorized model.

Generally, market orientation supports the implementation of JIT and TQM, JIT and TQM support implementation of SCM, SCM supports implementation of AP and green supply chain management practices (GSCMP) and AP and GSCMP positively impact organizational performance.

The model tested reflects the synergy created though the implementation of management improvement programs that support the six strategic imperatives of customer focus, efficiency, effectiveness, integration with supply chain partners, responsiveness, and environmental sustainability and the effects of those programs on the marketing and financial performance of manufacturing organizations.

The theorized model and results provide practicing managers with a blueprint for the systematic implementation of the improvement programs.

A comprehensive operations and SCM model is proposed and empirically assessed. The results of this investigation support the proposition that market orientation, JIT, TQM, SCM, AP and GSCMPs combine to positively affect organizational performance. The central role of the SCM construct is emphasized.

IN this issue we conclude our symposium on Modern Library Planning, and although it is not as complete as we could wish, it has certainly proved to be one of the most interesting subjects we have been able to deal with in recent years. We regret that lack of space has prevented us from including some interesting details about new libraries, and that we have laid ourselves open to the criticism of over‐crowding. We hope, however, that we shall be able, from time to time, to add further material as the occasion warrants. We had hoped to obtain a description of the Central Library Extension of the Hull Public Libraries, but this has, unfortunately, proved impossible. Lancashire County Library, too, is constructing four new branch libraries, an account of which we should have liked to include. Plymouth may be mentioned as still another library of which the material was not ready in time for our symposium. Also, we are sorry to have had to omit some of the illustrations which librarians have been kind enough to offer us for reproduction. In spite of these omissions, however, we have been able to gather together much that is new and interesting in modern planning, and one of the points that is well worth notice is the willingness of librarians to experiment in new ideas, even if conservatively.

THERE was a rather remarkable statement made at the Royal Institute of British Architects by Mr. Berwick Sayers last month. He affirmed that so far as the recorded issues of the reference libraries in the municipal libraries of London were concerned, only 8,880 books were consulted daily. This, as the statistical account of twenty‐nine public libraries, shows an average of a fraction over 302 books daily. To some this may seem not an inadequate issue, if all the books recorded are books which the student and the searcher for information have used. The point of the meeting at which the remark was made was that the reference libraries of London should do more in co‐operation with industry, and it was argued by the representatives of ASLIB who took part in the conference that our London reference libraries should be strengthened in the science and technology departments, even at the expense of the lending libraries. The experience of the public librarian seemed to be that few people lived in London near their work; and that they had command of the special libraries in London in a way that provincial industrialists had not, and therefore they did not make any use that mattered of London reference libraries. The Chambers of Commerce in the various boroughs of London consist of small traders as a rule whose main purpose is “to keep down the rates,” and who have very little connection with industry on the scale in the minds of the ASLIB representatives. In short, the chief function of the London public libraries is mainly that of home reading. Ultimately the solution of the reference problem may be the establishment of one or two great regional reference libraries supported by the co‐operation of the boroughs. Co‐operation, however, is in its initial stages yet, and it will probably be some time before such an ideal, if it be an ideal, is achieved.

The aim is to contribute significantly to the first wave of empirical investigations related to the impact of green supply chain management (GSCM) practices on performance. The paper also aims to theorize and empirically assess a comprehensive GSCM practices and performance model. The model incorporates green supply chain practices that link manufacturers with supply chain partners (both suppliers and customers) to support environmental sustainability throughout the supply chain.

Data collected from 159 manufacturing managers were analyzed using a structural equation modeling methodology. Manufacturing managers provide data reflecting the degree to which their organizations work with suppliers and customers to improve environmental sustainability of the supply chain.

Generally, the adoption of GSCM practices by manufacturing organizations leads to improved environmental performance and economic performance, which, in turn, positively impact operational performance. Operational performance enhances organizational performance.

As a first wave empirical investigation of the impact of GSCM practices on performance, the study is by necessity exploratory.

Practitioners are provided with a framework for assessing the synergistic impact of GSCM practices on performance. Internal environmental management and green information systems are identified as necessary precursors to the implementation of green purchasing, cooperation with customers, eco‐design, and investment recovery.

A comprehensive GSCM practices performance model is proposed and empirically assessed. The results of this investigation support the proposition that GSCM practices are both environmentally necessary and good business. A structured two‐wave approach to the implementation of GSCM practices is recommended.

The purpose of this paper is to contribute significantly to the first wave of empirical investigations related to the impact of green supply chain management practices on environmental and organizational performance from a manufacturer's perspective within a supply chain context.

An environmental collaboration and monitoring performance model is theorized and assessed following a structural equation methodology. Data were collected from 159 manufacturing managers through an on‐line survey.

Environmental collaboration and monitoring practices among supply chain partners are found to lead to improved environmental performance and organizational performance.

As a first wave investigation of the impact of green supply chain management practices on performance, the study is somewhat exploratory.

Practitioners are provided with a framework for assessing the impact of environmental collaboration and monitoring practices among supply chain partners on environmental performance and organizational performance. The study provides evidence that green supply chain practices lead to improved environmental and organizational performance.

The results also have important societal implications. While green supply chain management practices enhance the economic sustainability of the firm, they also positively impact society through improvements to the overall environment.

The results of this investigation support the proposition that implementation of environmental collaboration and monitoring practices by supply chain partners are both environmentally necessary and good business. The paper provides manufacturing managers with a structured approach to improving both environmental and organizational performance through environmental collaboration and monitoring with customers and suppliers.

To explain the processes involved in rewriting one’s way of understanding phenomenon.

A model for characterizing cognitive conceptions of learning and unlearning is described through a historical, current, and forward thinking approach to understanding content. Ideas for the reorganization of information are proposed alongside application-oriented means of implementing learn over theory in classrooms.

For cognitive development to ensue, we must capitalize on students’ existing knowledge and ways of knowing the world through chance plus selection, piggy-backing, affective boosting/field facilitation, imitation, learning support systems, bias, LC learning, use of spare mental capacity, and the need for coherent self-concept.

Through effective facilitation of their learning, students can hone their skills, recognize their efforts toward their successes, write and rewrite their existing schematic frameworks, develop and maintain positive self-concepts, and advance their systems for understanding their worlds and how to progress to subsequent levels of attainment independently.