Search results
1 – 10 of 78Kant Rao and William L. Grenoble
Increasing traffic congestion in many parts of the world threatensto disrupt the reliable transport performance required for effectiveimplementation of just‐in‐time logistics. An…
Abstract
Increasing traffic congestion in many parts of the world threatens to disrupt the reliable transport performance required for effective implementation of just‐in‐time logistics. An analytical framework for examining the effects of congestion on logistics performance is presented and mitigating options are suggested. The increasing problem of congestion is discussed and a general model is proposed with which its effects on time‐sensitive logistics networks might be analysed. Utilising this model and supporting data from a Chicago‐area transport study, a numerical example calculating the “costs of congestion” for one component is developed and presented. Finally, some extensions of the base framework are proposed and discussed. These include using joint probability theory to examine the effects of multiple components and multiple suppliers and examining the expected benefits of some mitigating actions such as pooled deliveries and consolidation.
Details
Keywords
Michael A. Haughton, William L. Grenoble, Evelyn A. Thomchick and Richard R. Young
Any firm participating in external (or inter‐firm) benchmarking anticipates at least two benefits: useful statistics on how it performs relative to the other participating firms;…
Abstract
Any firm participating in external (or inter‐firm) benchmarking anticipates at least two benefits: useful statistics on how it performs relative to the other participating firms; and guidance in identifying promising performance improvement actions. Using data from a five‐year benchmarking program for firms engaged in import operations, this research illustrates how these benefits might be assured. A major recommendation of the research is that, along with formal analysis of quantitative data, the structure of ongoing inter‐firm benchmarking programs must facilitate the firms’ receipt of information that enhances the realization of these benefits. This is likely to improve such programs along the dimensions of data gathering efficiency, data quality, and hence the usefulness of benchmarking to participating firms.
Details
Keywords
Anthony Wachs, Jean‐Robert Clermont and Ahmad Khalifeh
A finite volume method is applied to numerical simulations of steady isothermal and non‐isothermal flows of fluids obeying different constitutive equations: Newtonian, purely…
Abstract
A finite volume method is applied to numerical simulations of steady isothermal and non‐isothermal flows of fluids obeying different constitutive equations: Newtonian, purely viscous with shear‐thinning properties (Carreau law) and viscoelastic Upper Convected Maxwell differential model whose temperature dependence is described by a William‐Landel‐Ferry equation. The flow situations concern various abrupt axisymmetric contractions from 2:1 to 16:1. Such flow geometries are involved in polymer processing operations. The governing equations are discretized on a staggered grid with an upwind scheme for the convective‐type terms and are solved by a decoupled algorithm, stabilized by a pseudo‐transient stress term and an elastic viscous stress splitting technique. The numerical results highlight the influence of temperature on the flow situations, and also the complex behaviour of the materials under non‐isothermal conditions.
Details
Keywords
Aarhus Kommunes Biblioteker (Teknisk Bibliotek), Ingerslevs Plads 7, Aarhus, Denmark. Representative: V. NEDERGAARD PEDERSEN (Librarian).
Charlotte Lecuyer, Mathieu Béal, Sonia Capelli and William Sabadie
Co-operative managers must invest appropriately to strengthen member relationships, such as by initiating corporate social responsibility (CSR) actions or providing members with…
Abstract
Purpose
Co-operative managers must invest appropriately to strengthen member relationships, such as by initiating corporate social responsibility (CSR) actions or providing members with more relational benefits. This paper aims to investigate how members’ motives (collectivistic vs individualistic) might influence the effectiveness of these investments in terms of enhancing members’ trust and loyalty intentions.
Design/methodology/approach
This research combines an exploratory approach, based on six focus groups, with a confirmatory approach based on a field study and two scenario-based experiments.
Findings
Members tend to regard the two motives in contest and infer a “more CSR versus more benefits” arbitration effort by co-operatives, such that they appear to prioritize one motive over the other. Members with individualistic motives principally support co-operatives’ arbitration toward relational benefits, so the positive effects of CSR initiatives on their trust and loyalty intentions are weaker (Study 1). Both CSR and relational benefits can be more or less efficient, depending on members’ motives (Study 2).
Research limitations/implications
Reflecting their contrasting motives, members infer arbitration by co-operative managers, reflected in their “more CSR versus more benefits” belief. This insight and the related implications for trust and loyalty intentions have not been addressed in prior research.
Practical implications
Managers can avoid the negative consequences of “more CSR versus more benefits” inferences by ensuring a good fit between their investments and their members’ prevailing motives. If members have more collectivistic (cf. individualistic) motives, CSR initiatives (cf. relational benefits) enhance their trust and loyalty intentions more effectively.
Originality/value
This research builds on previous work on members’ relationships within co-operatives and on members’ motives. Results find that the effectiveness of co-operatives’ investments to strengthen members’ loyalty intentions depends on members’ prior motives.
Details
Keywords
This chapter presents a critical analysis of the wealth current practices of multinational firms as wealth predators; and relevant references from the theory of multinational…
Abstract
This chapter presents a critical analysis of the wealth current practices of multinational firms as wealth predators; and relevant references from the theory of multinational corporations and globalization from a Marxist perspective. The Marxist approach has also contributed to a theory of the self-expansion of capital (internationalization of the circuits of capital) on a global scale, within an analysis of the differentiation and of inequality.
Details
Keywords
The purpose of this article is to describe the rationale behind and analyze the results of a strategy in regards to changing conditions and market share dominance. For more than…
Abstract
Purpose
The purpose of this article is to describe the rationale behind and analyze the results of a strategy in regards to changing conditions and market share dominance. For more than 20 years, with the growth in available product varieties, product and brand proliferation have become increasingly evident in many consumer markets.
Design/methodology/approach
This article examines how three L’Oréal mass market businesses, i.e. L’Oréal Paris, Lascad and Gemey-Maybelline-Garnier (GMG), managed proliferation activities between 1988 and 2012 on their domestic market. Data were extracted from the information resources, inc. (IRI) Census and Sample Databases (retail panel data), and information was collected from internal sources and semi-structured interviews with top executives. Brand performance was assessed using panel data structure analysis, as recommended by IRI and Nielsen. Some data, as they remain confidential, were not included in the paper.
Findings
The study reveals that when opportunities are lacking, demand is declining, and competition is fierce – the situation that marks most mature markets – a proliferation strategy actually can yield diminishing results and reduced brand dominance.
Research limitations/implications
Offering broader lines appears to generate confusion and to be counterproductive in relation to theoretical assumptions. Additional research on proliferation strategies is needed, particularly in declining market conditions, which implies diminished demand and market saturation due to increased competition and isomorphic practices.
Practical implications
When deciding to extend product lines, managers should take into account competition and more qualitative factors than those included in the models developed by and for store brands. The respective positioning and marketing strategy (i.e. challenger and leader) of the brands involved have also to be considered.
Originality/value
Prior research on proliferation strategies has relied on strong assumptions such as increase in demand and unsaturated markets. Through these case studies, this article shows that making the shelf space denser affects brand dominance, particularly when market conditions change. These results challenge current thinking as, in facing internal and external contingencies, managers might think which scenario is most favorable for maintaining a dominant position: changing the structure of the market by reducing (i.e. concentration) or increasing the number of brands/products in the market.
Details
Keywords
Adel Chine, Amine Ammar and J.R. Clermont
The purpose of this paper is to compute flow effects of the transition from adherence-to-slip in two-dimensional flows, for a polymer melt obeying a memory-integral viscoelastic…
Abstract
Purpose
The purpose of this paper is to compute flow effects of the transition from adherence-to-slip in two-dimensional flows, for a polymer melt obeying a memory-integral viscoelastic equation, in isothermal and non-isothermal cases.
Design/methodology/approach
Temperature dependence is expressed by Arrhenius and William-Landel-Ferry models. A coupling approach is defined. For the dynamic equations, the Stream-Tube Method (STM) is used with finite differences in a mapped rectangular domain of the real domain, where streamlines are parallel and straight. STM avoids particle-tracking problems and allows simple formulae to evaluate stresses resulting from the constitutive equation. For the temperature field, a finite-element method is carried out to solve the energy equation in the real domain.
Findings
The approach avoids numerical problems arising with classical formulations and proves to be robust and efficient. Large elasticity levels are attained without convergence and refinement difficulties that may arise close to the “stick-slip” transition section. The method highlights the role of temperature conditions and reveals interesting differences for the ducts considered.
Practical implications
The results of the study are of interest for polymer processing where slip at the wall can be encountered, in relation with the physical properties of the materials.
Originality/value
The paper presents a simple approach that limits considerably numerical problems coming from stick-slip boundary conditions and avoids particle-tracking. Results are obtained at flow rates encountered in industrial conditions.
Details
Keywords
It has often been said that a great part of the strength of Aslib lies in the fact that it brings together those whose experience has been gained in many widely differing fields…
Abstract
It has often been said that a great part of the strength of Aslib lies in the fact that it brings together those whose experience has been gained in many widely differing fields but who have a common interest in the means by which information may be collected and disseminated to the greatest advantage. Lists of its members have, therefore, a more than ordinary value since they present, in miniature, a cross‐section of institutions and individuals who share this special interest.