1,721,137 research outputs found
Designing the reverse supply chain: The impact of the product residual value
Full text linkPurposeThe purpose of this paper is to explore the impact of the product residual value (PRV) and the loss of value over time of returned products in the reverse supply chain configuration. It also examines whether or not the distinction of Fisher's functional and innovative products holds for the reverse supply chain.Design/methodology/approachIn order to identify the relevance of the Fisher model, the model needs to be recast in terms of PRV, which, in this context, is considered the independent variable in the reverse logistics arena. Products defined as innovative in Fisher's taxonomy correspond to disposed products with high residual value, whereas functional products correspond to disposed products with low residual value. Furthermore, the PRV and the speed at which returned products lose their value are considered in order to determine the configuration of the reverse supply chain that allows for recapturing most of the PRV. These notions have then been tested by analyzing two reverse supply chains with a case study research methodology.FindingsThe findings show that low PRV is associated with second‐class recovery options (recycling and energy recovery) and that high PRV is associated with first‐class recovery options (reconditioning and remarketing). When the recovery option is recycling, time is not relevant, the primary objective is cost reduction (efficiency), the chain is centralized, and actors and phases of the reverse chain are determined by the specificity of the recycling process. When the recovery option is reconditioning, time is primarily relevant, tradeoffs between costs and time efficiency are necessary, the chain presents a centralized structure, and the presence of other types of actors and phases influences the structure of the reverse supply chain.Research limitations/implicationsThe focus is restricted to the industry of electrical and electronic products.Practical implicationsBased on the outcome of the study, managers are able to determine the basic prerequisites for the design of their reverse supply chains.Originality/valuePrevious literature suggests that when the PRV is high, early product differentiation is necessary, and the chain is therefore decentralized. The paper demonstrates that this is not confirmed in the case of low returned volumes and high reconditioning quality standards.</jats:sec
Designing the reverse network for WEEE in Denmark
Full text linkIn the challenging implementation of the European Directive on Waste of Electrical and Electronic Equipment (WEEE), the different fractions of waste at the individual collection stations must be assigned to the collective schemes which perform the waste treatment for the producers of the products. An approach is developed which provides an assignment which is efficient and fair for all the involved actors, e.g. the producers, the municipalities, and the collective schemes. We present an optimization-based decision support tool, which was developed for the coordinating government institution in Denmark, and numerical results for the current configuration
Collaborative purchasing of complex technologies in healthcare: Implications for alignment strategies
No full textPurpose – The purpose of this paper is to investigate how buyers and the vendors pursue alignment
in collaborative purchasing (CP) of complex medical technologies.
Design/methodology/approach – Through a literature review in CP, the paper identify factors for
shareholder alignment (i.e. aligning the needs of the buyers within the purchasing group) and customer
alignment (i.e. aligning buyers’ needs with the vendors offering strategies) and investigate how they
manifest in the case of CP of complex technology in the Danish National Healthcare System.
Findings – Shareholder alignment requires appropriate management of the relationships, expertise
and guidance in simplifying procedures and effective management of the purchasing group. Customer
alignment is facilitated by buyers’ understating of the vendor’s design options, which are moderated
by the vendor’s design strategies.
Research limitations/implications – The findings and generalizations from a single case study are
limited to the complexity of the purchased technology and the specific cultural context. However the
paper represents the first explorative study that poses the attention on the relevance of shareholder
and customer alignment in CP.
Practical implications – The study can offer hospitals, vendors, governmental and regional
institutions a better understanding about the alignment mechanisms for successful implementation of
CP and how to avoid pitfalls.
Originality/value – Literature on CP is scarce as there are virtually no contributions that debate
the key elements and tradeoffs that need to be considered for strategic alignment. The study addresses
this gap.
Keywords Healthcare, Collaborative purchasing, Service operations management,
Technology sourcing
Paper type Case stud
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
La rinnovata fisionomia del lavoro di pubblica utilità tra funzione trattamentale e vocazione riparatoria
No full textAppropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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