Search results for "Operation"

showing 10 items of 2969 documents

Ebola: an open letter to European governments.

2014

After months of inaction and neglect from the international community, the Ebola epidemic in west Africa has now spiralled utterly out of control. Today, the virus is a threat not only to the countries where the outbreak has overwhelmed the capacity of national health systems, but also to the entire world. We urge our governments to mobilise all possible resources to assist west Africa in controlling this horrific epidemic. Based on our expertise in public health and emergency response, we believe the following measures would be particularly eff ective. First, with regards to human resources, given the huge need for trained health-care professionals in west Africa, we urge European governme…

Economic growthmedicine.medical_specialtymedia_common.quotation_subjectInternational CooperationNeglect03 medical and health sciences0302 clinical medicineEnvironmental protectionparasitic diseasesMedicineHumans030212 general & internal medicineHuman resourcesEpidemic controlmedia_commonNational health0303 health sciences030306 microbiologybusiness.industryPublic health1. No povertyInternational communityGeneral MedicineHemorrhagic Fever EbolaHazard3. Good healthEuropeEmergency responseGovernmentbusinessLancet (London, England)
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Un modèle de concurrence spatiale comportant deux variables de décision des firmes (prix et localisation)

1991

La concurrence spatiale a été analysée en premier lieu par HOTELLING en 1929. Elle a, depuis lors, donné naissance à de nombreuses publicationsspécialement dans le cadre de la localisation. Le but de cette recherche est un approfondissement du modèle de THISSE, FUJITA, OGAWA de 1988. Les auteurs recherchent la localisation d'équilibre de firmes vendant des biens à un continuum de consommateurs uniformément distribués le long d'une droite. Ils ont posé des conditions mathématiques nécessaires à l'existence de la solution au problème de maximisation de l'utilité du consommateur sous contrainte de budget. Nous avons justifié économiquement ces conditions. Ce modèle permet, selon les auteurs, d…

Economic theoryControl theoryEconomicsStatistics[ SHS.ECO ] Humanities and Social Sciences/Economies and financesOperations research[SHS.ECO] Humanities and Social Sciences/Economics and Finance[SHS.ECO]Humanities and Social Sciences/Economics and FinanceOperational researchRecherche opérationnelleAutomatique
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Quesnay, balance and growth

1991

On sait que Quesnay a détecté plusieurs sources de perturbation de l’équilibre du Tableau, chacune étant génératrice d ’évolution du produit. Les principales sont la répartition des dépenses entre les produits agricoles (de la classe "productive") et les produits manufacturés (de la classe "stérile"), les différentes modalités d ’imposition et les restrictions à la liberté commerciale. Pour simplifier notre propos, nous nous limiterons à l’examen de lapremière source, traduite sous forme d ’une variation des propensions à consommer les deux produits. Nous présenterons d ’abord les éléments du problème en rappelant comment il se pose en termes des différentes versions du Tableau. Puis nous t…

Economic theoryControl theoryEconomics[ SHS.ECO ] Humanities and Social Sciences/Economies and finances[SHS.ECO]Humanities and Social Sciences/Economics and Finance[SHS.ECO] Humanities and Social Sciences/Economics and FinanceOperational researchRecherche opérationnelleAutomatique
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The curvilinear effect of manufacturing outsourcing and captive-offshoring on firms' innovation: The role of temporal endurance

2019

Abstract This paper aims to contribute to the open debate in the literature on the effect of global sourcing strategies on firm performance by studying the consequences of manufacturing outsourcing and captive-offshoring for the innovation capability of the firm. We grounded our hypotheses based on the outsourcing and offshoring literature and by narrowing our focus to the effects of persisting in their adoption over time. We tested our hypotheses using data from a sample of 368 manufacturing companies listed on NASDAQ stock market. The paper provides theoretical explanations and empirical findings for the inverted U-shaped influence of keeping doing captive-offshoring on new product develo…

Economics and EconometricEconomics and Econometrics0211 other engineering and technologiesSample (statistics)02 engineering and technologyManagement Science and Operations ResearchTemporal enduranceCorporationIndustrial and Manufacturing EngineeringCaptive-offshoringOutsourcing0502 economics and businessBusiness Management and Accounting (all)External knowledge acquisitionAdaptation (computer science)Industrial organization021103 operations researchOffshoringbusiness.industry05 social sciencesSettore ING-IND/35 - Ingegneria Economico-GestionaleGeneral Business Management and AccountingOutsourcingLinear relationshipNew product developmentNew product developmentStock marketbusiness050203 business & managementInternational Journal of Production Economics
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Resisting the extortion racket: an empirical analysis

2018

While the contributions on the organized crime and Mafia environments are many, there is a lack of empirical evidence on the firm’s decision to resist to extortion. Our case study is based on Addiopizzo, an NGO that, from 2004, invites firms to refuse requests from the local Mafia and to join a public list of “non-payers”. The research is based on a dataset obtained linking the current administrative archives maintained by the chambers of commerce and the list updated by the NGO. The objective of this paper is twofold: first, to gather sound data on the characteristics of the Addiopizzo joiners; second to model the probability to join Addiopizzo by a two-level logistic regression model. We …

Economics and EconometricEconomics and EconometricsEngineeringOperations researchmedia_common.quotation_subjectPopulation01 natural sciencesHuman capitalOrganized crime010104 statistics & probabilityMultilevel regression modelsExtortion; Multilevel regression models; Organized crime; Social mobilization; Business and International Management; Economics and Econometrics; LawRacketeering0502 economics and businessmedia_common.cataloged_instanceOrganised crime050207 economics0101 mathematicsBusiness and International ManagementSettore SECS-P/01 - Economia PoliticaeducationEmpirical evidencemedia_commoneducation.field_of_studyDiscrete choiceExtortionbusiness.industry05 social sciencesMultilevel regression modelExtortionSocial mobilizationDemographic economicsPsychological resiliencebusinessLawEuropean Journal of Law and Economics
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Cooperation among competitors: A comparison of cost-sharing mechanisms

2016

Abstract In this paper, we investigate the consequences of using outcome-based versus ex ante-based cost-sharing mechanisms in terms of competing firms' profitability and total welfare. We consider two firms making a joint expenditure, which can positively affect firms' demand and/or unit operating costs, while competing in the final market by setting either price or quantity. We compare two outcome-based cost-sharing mechanisms, i.e., Quantity Proportional (QP) and Total Margin proportional (TM), with the more competitive Fixed Share (FS) mechanism where cost-sharing is set up on an ex ante basis. We show that outcome-based mechanisms, and even a fully collusive behavior induced by the opt…

Economics and Econometrics0211 other engineering and technologiesCost-sharing mechanism02 engineering and technologyManagement Science and Operations ResearchOutcome (game theory)Industrial and Manufacturing EngineeringCompetition (economics)Microeconomics0502 economics and businessEconomicsGame theory.Industrial organization021103 operations researchCompetitionEx-ante05 social sciencesCompetitor analysisEconomic surplusSettore ING-IND/35 - Ingegneria Economico-GestionaleCooperation; Competition; Cost-sharing mechanisms; Decision making; Game theory.General Business Management and AccountingCooperationCost sharingProfitability indexDecision makingGame theory050203 business & managementInternational Journal of Production Economics
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Performance assessment of water companies: A metafrontier approach accounting for quality of service and group heterogeneities

2021

Abstract The assessment of water companies’ efficiency, productivity and quality of service is part of the process to set water tariffs and therefore, is relevant for regulators and customers. However, the water industry involves several heterogeneous water companies. Following a pioneering approach, this study estimates productivity change and its drivers considering the non-homogeneous nature of the water companies and incorporating quality of service variables as undesirable outputs. In doing so, the metafrontier Malmquist Luenberger productivity index was estimated for a sample of English and Welsh water and sewerage companies (WaSCs) and water only companies (WoCs) over the years 2001–…

Economics and Econometrics021103 operations researchIndex (economics)business.industryProcess (engineering)Strategy and ManagementQuality of service05 social sciencesGeography Planning and Development0211 other engineering and technologiesSample (statistics)02 engineering and technologyWater industryManagement Science and Operations ResearchTechnical progress0502 economics and businessSewerage050207 economicsStatistics Probability and UncertaintybusinessProductivityIndustrial organizationSocio-Economic Planning Sciences
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Exploring the relationship between Information and Communication Technologies (ICT) and academic performance: A multilevel analysis for Spain

2021

Abstract With the world becoming increasingly digitalized, determining the relationship between the use of Information and Communication Technologies (ICT) and educational outcomes takes on special relevance for guiding educational policy decisions in a reasoned way. The objective of this research is to explore the relationship between different types of ICT use at school and at home, students' attitudes towards ICT, and academic performance, as well as to see if these associations differ according to the level of performance of the students. For this purpose, we apply multilevel regression models and quantile regression models with data from the Programme for International Student assessme…

Economics and Econometrics021103 operations researchStrategy and Managementmedia_common.quotation_subject05 social sciencesGeography Planning and DevelopmentMultilevel model0211 other engineering and technologiesPublic policy02 engineering and technologyManagement Science and Operations ResearchSocial relationQuantile regressionEntertainmentInformation and Communications Technology0502 economics and businessComputingMilieux_COMPUTERSANDEDUCATIONMathematics educationRelevance (information retrieval)050207 economicsStatistics Probability and UncertaintyPsychologyFunction (engineering)media_commonSocio-Economic Planning Sciences
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A multiple criteria decision model for analyzing and choosing among different development patterns for the Helsinki cargo harbor

1999

Abstract This paper describes a real application of a multicriteria approach to choosing among different options for developing the Helsinki harbor. In addition to the environmental impact assessment procedure, an analysis of the alternatives using the SMAA-method (Stochastic Multiobjective Acceptability Analysis) is carried out. The method applied here has been developed for situations in which the use of decision-makers’ preference information is not possible. Instead, the problem is described by typical weight vectors leading to each solution, taking into account the evident uncertainty embedded in the criteria values.

Economics and EconometricsDecision support systemOperations researchComputer scienceStrategy and Managementmedicine.medical_treatmentGeography Planning and DevelopmentEvidential reasoning approachDecision treeManagement Science and Operations ResearchPreferencemedicineStatistics Probability and UncertaintyDecision modelDecision analysis cycleDecision analysisOptimal decision
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Searching for new paradigms in a globalized world: Business ethics as a management strategy

2008

The process of globalization is an undeniable reality of today's world. Yet, paradoxically, the cornerstone of this phenomenon, economic performance, varies widely across the world whatever indicator (for example, GDP/habitant, competitiveness) we choose to use to compare countries. Increasingly, studies tend to explain this apparently paradoxical situation with reference to the issue of corruption and ethics. In essence, corruption is perceived to be an important impediment to the economic development of a country (or area). Many studies of corruption are focused at the national level. The aim of this conceptual paper is to explore the role of the firm (as opposed to national states or int…

Economics and EconometricsEconomic growthHF5001-6182Process (engineering)Corruptionstakeholder theorymedia_common.quotation_subjectcorruptionCornerstonecooperationethicsGlobalizationPolitical economyPhenomenonstrategic managementEconomicsBusiness Management and Accounting (miscellaneous)BusinessStrategic managementBusiness ethicsStakeholder theoryglobalizationmedia_commonJournal of Business Economics and Management
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