Graduate School of Business of Algeria

www.hbs.edu/
Algiers, Algeria

Harvard Business School is the graduate business school of Harvard University in Boston, Massachusetts, United States. The school offers a large full-time MBA program, doctoral programs, HBX and many executive education programs. It owns Harvard Business School Publishing, which publishes business books, leadership articles, online management tools for corporate learning, case studies, and the monthly Harvard Business Review. Wikipedia.

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Bargaoui H.,University of Tunis | Belkahla Driss O.,Graduate School of Business of Algeria | Ghedira K.,University of Tunis
Computers and Industrial Engineering | Year: 2017

The Permutation Flowshop Scheduling Problem (PFSP) is among the most investigated scheduling problems in the fields of Operational Research (OR) and management science. During the last six decades, it has gained much attention and interest thanks to its applicability in a variety of domains such as industrial engineering and economics. Recently, the PFSP with multi-factory environment has been proposed in shop scheduling sphere. Since the problem is known to be NP-hard, exact algorithms can be extremely costly, computationally speaking. Chemical Reaction Optimization (CRO) is lastly proposed by Lam and Li (2010) to optimize hard combinatorial problems. Due to its ability to escape from local optima, CRO has demonstrated excellent performance in solving a variety of scheduling problems, such as flexible job-shop scheduling, grid scheduling, network scheduling etc. In such a paper, we address the Distributed Permutation Flowshop Scheduling Problem (DPFSP) with an artificial chemical reaction metaheuristic which objective is to minimize the maximum completion time. In the proposed CRO, the effective NEH heuristic is adapted to generate the initial population of molecules. Furthermore, a well-designed One-Point (OP) crossover and an effective greedy strategy are embedded in the CRO algorithm in order to ameliorate the solution quality. Moreover, the influence of the parameter setting on the CRO algorithm is being investigated on the base of the Taguchi method. To validate the performance of the proposed algorithm, intensive experiments are carried out on 720 large instances which are extended from the well known Taillard benchmark. The results prove the efficiency of the proposed algorithm in comparison with some powerful algorithms. It is also seen that more than 200 best-known solutions are improved. © 2017 Elsevier Ltd


Simmons G.,University of Ulster | Thomas B.,University of South Wales | Truong Y.,Graduate School of Business of Algeria
European Journal of Marketing | Year: 2010

Purpose: Given the emergent nature of i-branding as an academic field of study and a lack of applied research output, the aim of this paper is to explain how businesses manage i-branding to create brand equity. Design/methodology/approach: Within a case-study approach, seven cases were developed from an initial sample of 20 food businesses. Additionally, utilising secondary data, the analysis of findings introduces relevant case examples from other industrial sectors. Findings: Specific internet tools and their application are discussed within opportunities to create brand equity for products classified by experience, credence and search characteristics. An understanding of target customers will be critical in underpinning the selection and deployment of relevant i-branding tools. Tools facilitating interactivity - machine and personal - are particularly significant. Research limitations/implications: Future research positioned within classification of goods constructs could provide further contributions that recognise potential moderating effects of product/service characteristics on the development of brand equity online. Future studies could also employ the i-branding conceptual framework to test its validity and develop it further as a means of explaining how i-branding can be managed to create brand equity. Originality/value: While previous research has focused on specific aspects of i-branding, this paper utilises a conceptual framework to explain how diverse i-branding tools combine to create brand equity. The literature review integrates fragmented literature around a conceptual framework to produce a more coherent understanding of extant thinking. The location of this study within a classification of goods context proved critical to explaining how i-branding can be managed. © Emerald Group Publishing Limited.


Nouri H.E.,University of Tunis | Belkahla Driss O.,Graduate School of Business of Algeria | Ghedira K.,University of Tunis
Computers and Industrial Engineering | Year: 2016

In real manufacturing environments, the control of some elements in systems based on robotic cells, such as transport robots has some difficulties when planning operations dynamically. The Flexible Job Shop scheduling Problem with Transportation times and Many Robots (FJSPT-MR) is a generalization of the classical Job Shop scheduling Problem (JSP) where a set of jobs have to be processed on a set of alternative machines and additionally have to be transported between them by several transport robots. Hence, the FJSPT-MR is more computationally difficult than the JSP presenting two NP-hard problems simultaneously: the flexible job shop scheduling problem and the robot routing problem. This paper proposes hybrid metaheuristics based on clustered holonic multiagent model for the FJSPT-MR. Firstly, a scheduler agent applies a Neighborhood-based Genetic Algorithm (NGA) for a global exploration of the search space. Secondly, a set of cluster agents uses a tabu search technique to guide the research in promising regions. Computational results are presented using three sets of benchmark literature instances. New upper bounds are found, showing the effectiveness of the presented approach. © 2016 Elsevier Ltd.


Li Y.,Shenzhen University | Li J.,Graduate School of Business of Algeria | Qiu Q.,Shenzhen University | Xu Y.,Hunan Energy Conservation Center
Applied Energy | Year: 2010

A state-owned glass production enterprise introduces the strategic investor to carry on the assets reorganization, including the purchase of two float glass production lines with subsequent technology transformations and the construction of a new float glass production line with domestic leading technology. The fuel consumption structure has changed from coal-burning to natural gas or fuel oil. The following auditing procedures were followed according to Chinese national standards. These procedures include constituting an ordinance on energy management, strengthening the energy measurement and data statistical system, and improving production lines as well as energy-saving measures. Production scale expanded approximately twice during the period of audit. Comprehensive energy consumption was 2.58 ton coal equivalent (tce) at aqual in heat value (AHV refers to energy consumed to generate each kW h of electric power, each m3 of oxygen, nitrogen, hydrogen, or each kg of steam. The term of AHV provides a unification measurement criterion for fossil fuels consumed before the energy transformation.) account per 10,000 Yuan output value, and 2.17 tce at heat value equivalent (HVE) account. Comprehensive energy consumption per unit of product was 15.35 kg coal equivalent (kce) per weight box. The percentage of energy cost among total cost reduced from 51.19% in 2007 to 46.48% in 2008. Consequently, the comprehensive energy conversion level holds a leading position among peers in China. © 2010 Elsevier Ltd. All rights reserved.


Carbone V.,ESCP Europe | Carbone V.,Graduate School of Business of Algeria | Moatti V.,Graduate School of Business of Algeria
International Journal of Logistics Research and Applications | Year: 2011

Business leaders worldwide are proclaiming their interest in increasingly ambitious environmental initiatives. However, external observers, particularly not-for-profit organisations, are criticising the trend of many companies towards green communication or posturing rather than action, termed 'green-washing'. Our purpose is to establish a link between companies' green strategic intent and their concrete initiatives in the supply-chain area. Drawing from the institutional theory, we expect that green supply-chain practices are following different patterns and transforming across time, according to different institutional contexts. We point out here that green-washing represents a primarily needed step towards further concrete actions and results. We expect that different institutional contexts lead to different types of green supply-chain behaviours. Analysis of data from a large-scale survey of 600 international companies using Multiple Correspondence Analysis and logistic regression provided clear evidence that firms are following different patterns when they implement a green strategy to their supply chain. © 2011 Taylor & Francis.


Lei P.,Graduate School of Business of Algeria | Jolibert A.,Pierre Mendès-France University
BMC Health Services Research | Year: 2012

Abstract. Background: Previous research has addressed the relationship between customer satisfaction, perceived quality and customer loyalty intentions in consumer markets. In this study, we test and compare three theoretical models of the quality-satisfaction-loyalty relationship in the Chinese healthcare system. Methods. This research focuses on hospital patients as participants in the process of healthcare procurement. Empirical data were obtained from six Chinese public hospitals in Shanghai. A total of 630 questionnaires were collected in two studies. Study 1 tested the research instruments, and Study 2 tested the three models. Confirmatory factor analysis was used to assess the scales' construct validity by testing convergent and discriminant validity. A structural equation model (SEM) specified the distinctions between each construct. A comparison of the three theoretical models was conducted via AMOS analysis. Results: The results of the SEM demonstrate that quality and satisfaction are distinct concepts and that the first model (satisfaction mediates quality and loyalty) is the most appropriate one in the context of the Chinese healthcare environment. Conclusions: In this study, we test and compare three theoretical models of the quality-satisfaction- loyalty relationship in the Chinese healthcare system. Findings show that perceived quality improvement does not lead directly to customer loyalty. The strategy of using quality improvement to maintain patient loyalty depends on the level of patient satisfaction. This implies that the measurement of patient experiences should include topics of importance for patients' satisfaction with health care services. © 2012 Lei and Jolibert; licensee BioMed Central Ltd.


Minato N.,Keio University | Morimoto R.,Graduate School of Business of Algeria
Journal of Air Transport Management | Year: 2011

The thin and fluctuated market generally characterizing air transport to remote islands involves greater business risks for airlines. But air transport often plays an important role in the life and economy of such islands. This paper applies portfolio theory to explore how it can reduce business risks to air transport in this context. The concept of Tourism β is introduced to represent the risk associated with each island market relative to overall tourist demand in the region looking as at 31 airports on remote islands in Japan. The results showed that a well-diversified portfolio of multiple remote islands could reduce the score commercial risks for carriers. © 2010 Elsevier Ltd.


Mokhtari F.,Graduate School of Business of Algeria
Mathematical Methods in the Applied Sciences | Year: 2013

In this paper, we prove existence and regularity of weak solutions for a class of nonlinear anisotropic parabolic problems in RN with locally integrable data. Our approach is based on the anisotropic Sobolev inequality, a smoothness, and compactness results. Copyright © 2012 John Wiley & Sons, Ltd. Copyright © 2012 John Wiley & Sons, Ltd.


Youssef S.B.,Graduate School of Business of Algeria
Environmental Modeling and Assessment | Year: 2011

The impact of the investment in absorptive capacity on transboundary pollution is studied by considering two countries, each of them regulating a firm. Firms can invest in inventive research and in absorptive research to lower their pollution intensity. The absorptive research enables a firm to capture part of the inventive research made by the other one. We show that by means of adequate emission taxes, original and absorptive research and development (R&D) subsidies, regulators can reach the non-cooperative social optimum. Interestingly, we show that the investment in absorptive research enables non-cooperating regulators to better internalize transboundary pollution. The higher is the learning parameter of absorption, the greater is the proportion of transboundary pollution internalized. Therefore, it is recommended for the international community to make the patent laws more flexible and enabling learning from the research made by others more interesting. Moreover, the investment in absorptive R&D may lead to multiple equilibria necessitating non-cooperating countries to coordinate on an equilibrium, which constitutes an incentive for them to cooperate. © 2010 Springer Science+Business Media B.V.


Mokhtari F.,Graduate School of Business of Algeria
Mathematical Methods in the Applied Sciences | Year: 2011

In this work, we prove the existence of weak solution for a class of anisotropic parabolic problems with Orlicz data. Our approach is based on the anisotropic Sobolev inequality, a smoothness, and compactness results. © 2011 John Wiley & Sons, Ltd.

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