A critical evaluation of alternative methods and paradigms for conducting mediation analysis in operations management research

Mediation as a theory testing approach has witnessed considerable adoption among Operations Management (OM) researchers. Although mediation-testing methods have evolved tremendously in the past decade, their dissemination in the OM field has not seen parallel growth. These advanced techniques facilitate the testing of existing and complex hypotheses in a more precise manner. With the intent of critically evaluating existing and alternative methods for conducting mediation analysis needed to support sophisticated empirical research, this paper first reviews OM studies that tested for mediation in the past eleven years (2002–2012) from top-tier OM journals. Four commonly used mediation approaches were identified. Based on principles of good theory building, type of mediation model, and properties of empirical data, we evaluate the existing methodologies and make recommendations on how to improve the rigor of OM mediation testing. Using published OM studies in top journals as examples, we then illustrate the relevance and advantages of these recommendations, as well as their ease of use. Furthermore, we empirically show that more robust and insightful results can be achieved by adopting these techniques, which in turn have the promise of leading to better theory building and testing in the field of operations management.     

Contingency research in operations management practices

As operations management (OM) best practices have become mature, research on practices has begun to shift its interest from the justification of the value of those practices to the understanding of the contextual conditions under which they are effective—OM practice contingency research (OM PCR). This article sets out to examine and critique the current state of OM PCR. We review OM PCR studies through the lens of the major theoretical view on contingencies, contingency theory, along a number of relevant dimensions: contingency variables, performance variables, measurement, research design and employed form of fit. In this process, we put forward a number of tasks that need to be accomplished in order to move OM PCR forward and develop more solid conceptual foundations in which to anchor rigorous research in this area. Finally, we reflect on the theoretical arguments that underlie OM PCR (which are based on the contingency approach) and identify its limitations in fully explaining the currently observed patterns of use of OM practices and associated performance outcomes. As a result, we propose that in order to increase our understanding of these patterns, OM scholars need to study in more depth the process of selection of OM best practices by organizations. Accordingly, we put forward a framework to underpin such research integrating contingency theory and other theoretical perspectives.     

网上银行业务发展初探

文章就网上银行的特点,我国网上银行业务发展状况、存在问题及解决措施进行了初步探讨。     

A classification and evaluation of research in operations management

It is important that the first issue of a new journal devoted to research in a given subject area examine the general nature of research in the field at present, and indicate what type of research might be beneficially undertaken in the field in the future. It is also desirable for a new journal to consider the ways in which it will judge the general quality of its articles in the aggregate, relative to established journals in similar disciplines. That is, what criteria can and should be used, say five years hence to determine if the journal is a strong one? It is the purpose of this paper to consider these distinct, but interrelated questions. This will be done by classifying some recent OM research, commenting on what appear to be broad areas where more work might be done, and then suggesting some measures we might want to think about for evaluating papers published by the JOM in the future.     

Toward a rapprochement between the two basic paradigms of educational research

Whereas the natural-science approach has promoted the application of the hypothetico-deductive paradigm, the humanistic approach has encouraged educational researchers to employ the interpretive/symbolic paradigm. These two paradigms are contrasting in their ontology, epistomology, human model and methodology. After comparing the perspectives of the above two approaches to educational research, some justifications have been offered for the utilization of symbolic/interpretive paradigm by emphasizing the need for naturalistic observations, qualitative data, semiotical analysis and intuitive inferences for gaining a better understanding of the teaching-learning process as also the social reality in which it takes place. Although the unification of the two approaches seems antithetical, still there are many empirical instances of the fusion between the two in the areas of perception, learning, remembering, creativity and classroom behaviour. The advantages in the integration of the two paradigms may be seen in the light of the changing conceptions of the world and models of man. For enriching educational research, we need both analytical and synthetic orientations, micro and macro data, statistical and clinical predictions, deductive and inductive inferences, as well as theoretic objectivity and practical valuations. The unification is expected to pave the way for more precision, objectivity as also synthesis in understanding different educational phenomena.     

The service sector: Challenges and imperatives for research in operations management

The United States has undergone a transformation from an industrial society to the first postindustrial society. Consequently, the service sector has outstripped manufacturing in its contribution to the GNP and in employment. This paper discusses the challenges and imperatives for research in service operations management (SOM). Service operations have unique characteristics that must be considered in developing research strategies. Recent attempts at evolving a general theory of service organizations are reviewed, and it is suggested that these conceptual models provide a unifying framework for the study of SOM. Research in SOM requires a broad perspective that includes the customer and the interactions with other functional areas. It requires an integration of conventional production concepts with behavioral and marketing considerations.     

Using partial least squares in operations management research: A practical guideline and summary of past research

The partial least squares (PLS) approach to structural equation modeling (SEM) has been widely adopted in business research fields such as information systems, consumer behavior, and marketing. The use of PLS in the field of operations management is also growing. However, questions still exist among some operations management researchers regarding whether and how PLS should be used. To address these questions, our study provides a practical guideline for using PLS and uses examples from the operations management literature to demonstrate how the specific points in this guideline can be applied. In addition, our study reviews and summarizes the use of PLS in the recent operations management literature according to our guideline. The main contribution of this study is to present a practical guideline for evaluating and using PLS that is tailored to the operations management field.     

A history of research in service operations: What's the big idea?

The purpose of this paper is to trace the history of research in service operations. After discussing the role of services in national economies and the importance of research in service operations, we discuss major trends in service operations research. For simplicity of exposition, this discussion is organized in terms of big ideas that have proved to be influential in setting the research agenda in service operations. In the final section, we identify high-potential research areas where research needs are particularly urgent in the near future.     

The relative importance of journals used in operations management research A citation analysis

Journal rankings are important for a variety of reasons, most importantly as the basis of academic tenure and promotion decisions. A common approach in other fields is the citations methodology which is used in this study to determine the relative importance of various operations management (OM) journals. The citations analysis noted the frequency that all other journals are cited in Decision Sciences, Journal of Operations Management, and Management Science during the period 1992 to 1994. Rankings are provided based on total citations, citations per article, and citations per words published. The study shows that the journals with the most importance to OM research are Management Science, Decisions Sciences and Operations Research. Other journals important to OM research are the Harvard Business Review, Journal of Operations Management, and IIE Transactions.     

适应之后的变通——顶好公司的适应之道：传统公司在早期的探索

美国的顶好公司（Foremost）是世界著名的乳制品加工和销售企业。公司的目标是：成为食品行业跨国经营的大公司，并向消费者提供富于营养的乳制品。为此，公司很早就向海外发展。     

Coordination in operations: A taxonomy

This paper proposes a taxonomy of coordination study in operations. Its point of departure is the assumption that coordination study in operations always involves a “system” which can be a mathematical model, a software system, a business process or a game. A system is the unit of analysis in the taxonomy. In the taxonomy, systems are first divided into three categories depending on the type of coordination - coordination within operations, cross-functional coordination and inter-organizational coordination. Systems are further divided depending on how people in the organization behave, i.e., the perspective of organization. We propose three alternative perspectives of organization - single-person perspective, team perspective, and nexus-of-contract perspective of organization. Through a series of examples, we describe nine subcategories of systems.     

Personnel and paradigms: four perspectives on the future

This article critically examines the emergent ‘consensus’ functionalist image of personnel management in the 1990s, contrasting it with potential images derived from other paradigmatic perspectives. The utility of the ‘consensus’ image in reinforcing personnel practitioners’ threatened power base is also discussed.