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  Subjects -> BUSINESS AND ECONOMICS (Total: 3126 journals)
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    - BUSINESS AND ECONOMICS (1157 journals)
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BUSINESS AND ECONOMICS (1157 journals)                  1 2 3 4 5 6 | Last

Showing 1 - 200 of 1566 Journals sorted alphabetically
4OR: A Quarterly Journal of Operations Research     Hybrid Journal   (Followers: 9)
Abacus     Hybrid Journal   (Followers: 12)
Accounting Forum     Hybrid Journal   (Followers: 25)
Acta Amazonica     Open Access   (Followers: 4)
Acta Commercii     Open Access   (Followers: 3)
Acta Oeconomica     Full-text available via subscription   (Followers: 2)
Acta Scientiarum. Human and Social Sciences     Open Access   (Followers: 5)
Acta Universitatis Danubius. Œconomica     Open Access   (Followers: 2)
Acta Universitatis Nicolai Copernici Zarządzanie     Open Access   (Followers: 3)
AD-minister     Open Access   (Followers: 2)
ADR Bulletin     Open Access   (Followers: 5)
Advances in Developing Human Resources     Hybrid Journal   (Followers: 21)
Advances in Economics and Business     Open Access   (Followers: 11)
AfricaGrowth Agenda     Full-text available via subscription   (Followers: 1)
African Affairs     Hybrid Journal   (Followers: 59)
African Development Review     Hybrid Journal   (Followers: 34)
African Journal of Business and Economic Research     Full-text available via subscription   (Followers: 1)
African Journal of Business Ethics     Open Access   (Followers: 6)
African Review of Economics and Finance     Open Access   (Followers: 3)
Afro-Asian Journal of Finance and Accounting     Hybrid Journal   (Followers: 7)
Afyon Kocatepe Üniversitesi İktisadi ve İdari Bilimler Fakültesi Dergisi     Open Access   (Followers: 3)
Agronomy     Open Access   (Followers: 11)
Akademika : Journal of Southeast Asia Social Sciences and Humanities     Open Access   (Followers: 4)
Alphanumeric Journal : The Journal of Operations Research, Statistics, Econometrics and Management Information Systems     Open Access   (Followers: 4)
American Economic Journal : Applied Economics     Full-text available via subscription   (Followers: 151)
American Journal of Business     Hybrid Journal   (Followers: 15)
American Journal of Business and Management     Open Access   (Followers: 53)
American Journal of Business Education     Open Access   (Followers: 10)
American Journal of Economics and Business Administration     Open Access   (Followers: 26)
American Journal of Economics and Sociology     Hybrid Journal   (Followers: 28)
American Journal of Evaluation     Hybrid Journal   (Followers: 13)
American Journal of Finance and Accounting     Hybrid Journal   (Followers: 19)
American Journal of Health Economics     Full-text available via subscription   (Followers: 12)
American Journal of Industrial and Business Management     Open Access   (Followers: 23)
American Journal of Medical Quality     Hybrid Journal   (Followers: 7)
American Law and Economics Review     Hybrid Journal   (Followers: 25)
ANALES de la Universidad Central del Ecuador     Open Access   (Followers: 2)
Annales de l'Institut Henri Poincare (C) Non Linear Analysis     Full-text available via subscription   (Followers: 1)
Annals in Social Responsibility     Full-text available via subscription  
Annals of Finance     Hybrid Journal   (Followers: 28)
Annals of Operations Research     Hybrid Journal   (Followers: 8)
Annual Review of Economics     Full-text available via subscription   (Followers: 30)
Applied Developmental Science     Hybrid Journal   (Followers: 3)
Applied Economics     Hybrid Journal   (Followers: 48)
Applied Economics Letters     Hybrid Journal   (Followers: 29)
Applied Economics Quarterly     Full-text available via subscription   (Followers: 10)
Applied Financial Economics     Hybrid Journal   (Followers: 23)
Applied Mathematical Finance     Hybrid Journal   (Followers: 7)
Applied Stochastic Models in Business and Industry     Hybrid Journal   (Followers: 5)
Arab Economic and Business Journal     Open Access   (Followers: 3)
Archives of Business Research     Open Access   (Followers: 5)
Arena Journal     Full-text available via subscription   (Followers: 1)
Argomenti. Rivista di economia, cultura e ricerca sociale     Open Access   (Followers: 2)
ASEAN Economic Bulletin     Full-text available via subscription   (Followers: 5)
Asia Pacific Business Review     Hybrid Journal   (Followers: 5)
Asia Pacific Journal of Human Resources     Hybrid Journal   (Followers: 313)
Asia Pacific Viewpoint     Hybrid Journal   (Followers: 1)
Asia-Pacific Journal of Business Administration     Hybrid Journal   (Followers: 3)
Asia-Pacific Journal of Operational Research     Hybrid Journal   (Followers: 3)
Asia-Pacific Management and Business Application     Open Access  
Asian Business Review     Open Access   (Followers: 2)
Asian Case Research Journal     Hybrid Journal   (Followers: 1)
Asian Development Review     Open Access   (Followers: 14)
Asian Economic Journal     Hybrid Journal   (Followers: 8)
Asian Economic Papers     Hybrid Journal   (Followers: 7)
Asian Economic Policy Review     Hybrid Journal   (Followers: 4)
Asian Journal of Accounting and Governance     Open Access   (Followers: 4)
Asian Journal of Business Ethics     Hybrid Journal   (Followers: 7)
Asian Journal of Social Sciences and Management Studies     Open Access   (Followers: 7)
Asian Journal of Sustainability and Social Responsibility     Open Access   (Followers: 1)
Asian Journal of Technology Innovation     Hybrid Journal   (Followers: 8)
Asian-pacific Economic Literature     Hybrid Journal   (Followers: 5)
AStA Wirtschafts- und Sozialstatistisches Archiv     Hybrid Journal   (Followers: 5)
Atlantic Economic Journal     Hybrid Journal   (Followers: 15)
Australasian Journal of Regional Studies, The     Full-text available via subscription   (Followers: 2)
Australian Cottongrower, The     Full-text available via subscription   (Followers: 1)
Australian Economic Papers     Hybrid Journal   (Followers: 28)
Australian Economic Review     Hybrid Journal   (Followers: 6)
Australian Journal of Maritime and Ocean Affairs     Hybrid Journal   (Followers: 10)
Balkan Region Conference on Engineering and Business Education     Open Access   (Followers: 1)
Baltic Journal of Real Estate Economics and Construction Management     Open Access   (Followers: 1)
Banks in Insurance Report     Hybrid Journal   (Followers: 1)
BBR - Brazilian Business Review     Open Access   (Followers: 4)
Benchmarking : An International Journal     Hybrid Journal   (Followers: 11)
Benefit : Jurnal Manajemen dan Bisnis     Open Access  
BER : Consumer Confidence Survey     Full-text available via subscription   (Followers: 4)
BER : Economic Prospects : An Executive Summary     Full-text available via subscription  
BER : Economic Prospects : Full Survey     Full-text available via subscription   (Followers: 2)
BER : Intermediate Goods Industries Survey     Full-text available via subscription   (Followers: 1)
BER : Manufacturing Survey : Full Survey     Full-text available via subscription   (Followers: 2)
BER : Motor Trade Survey     Full-text available via subscription   (Followers: 1)
BER : Retail Sector Survey     Full-text available via subscription   (Followers: 2)
BER : Retail Survey : Full Survey     Full-text available via subscription   (Followers: 2)
BER : Survey of Business Conditions in Building and Construction : An Executive Summary     Full-text available via subscription   (Followers: 4)
BER : Survey of Business Conditions in Manufacturing : An Executive Summary     Full-text available via subscription   (Followers: 3)
BER : Survey of Business Conditions in Retail : An Executive Summary     Full-text available via subscription   (Followers: 3)
BER : Trends : Full Survey     Full-text available via subscription   (Followers: 2)
BER : Wholesale Sector Survey     Full-text available via subscription   (Followers: 1)
Berkeley Business Law Journal     Free   (Followers: 10)
Bio-based and Applied Economics     Open Access   (Followers: 1)
Biodegradation     Hybrid Journal   (Followers: 1)
Biology Direct     Open Access   (Followers: 7)
Black Enterprise     Full-text available via subscription  
Board & Administrator for Administrators only     Hybrid Journal  
Border Crossing : Transnational Working Papers     Open Access   (Followers: 2)
Briefings in Real Estate Finance     Hybrid Journal   (Followers: 5)
British Journal of Industrial Relations     Hybrid Journal   (Followers: 35)
Brookings Papers on Economic Activity     Open Access   (Followers: 48)
Brookings Trade Forum     Full-text available via subscription   (Followers: 3)
BRQ Business Research Quarterly     Open Access   (Followers: 2)
Building Sustainable Legacies : The New Frontier Of Societal Value Co-Creation     Full-text available via subscription   (Followers: 1)
Bulletin of Economic Research     Hybrid Journal   (Followers: 17)
Bulletin of Geography. Socio-economic Series     Open Access   (Followers: 7)
Bulletin of Indonesian Economic Studies     Hybrid Journal   (Followers: 3)
Bulletin of the Dnipropetrovsk University. Series : Management of Innovations     Open Access   (Followers: 1)
Business & Entrepreneurship Journal     Open Access   (Followers: 18)
Business & Information Systems Engineering     Hybrid Journal   (Followers: 5)
Business & Society     Hybrid Journal   (Followers: 9)
Business : Theory and Practice / Verslas : Teorija ir Praktika     Open Access   (Followers: 1)
Business and Economic Research     Open Access   (Followers: 6)
Business and Management Horizons     Open Access   (Followers: 12)
Business and Management Research     Open Access   (Followers: 17)
Business and Management Studies     Open Access   (Followers: 9)
Business and Politics     Hybrid Journal   (Followers: 6)
Business and Professional Communication Quarterly     Hybrid Journal   (Followers: 7)
Business and Society Review     Hybrid Journal   (Followers: 5)
Business Economics     Hybrid Journal   (Followers: 6)
Business Ethics: A European Review     Hybrid Journal   (Followers: 16)
Business Horizons     Hybrid Journal   (Followers: 9)
Business Information Review     Hybrid Journal   (Followers: 14)
Business Management and Strategy     Open Access   (Followers: 43)
Business Research     Hybrid Journal   (Followers: 2)
Business Strategy and the Environment     Hybrid Journal   (Followers: 13)
Business Strategy Review     Hybrid Journal   (Followers: 7)
Business Strategy Series     Hybrid Journal   (Followers: 6)
Business Systems & Economics     Open Access   (Followers: 2)
Business Systems Research Journal     Open Access   (Followers: 5)
Business, Management and Education     Open Access   (Followers: 18)
Business, Peace and Sustainable Development     Full-text available via subscription   (Followers: 3)
Bustan     Hybrid Journal   (Followers: 1)
Cadernos EBAPE.BR     Open Access   (Followers: 1)
Cambridge Journal of Economics     Hybrid Journal   (Followers: 58)
Cambridge Journal of Regions, Economy and Society     Hybrid Journal   (Followers: 11)
Canadian Journal of Administrative Sciences / Revue Canadienne des Sciences de l Administration     Hybrid Journal   (Followers: 1)
Canadian Journal of Economics/Revue Canadienne d`Economique     Hybrid Journal   (Followers: 28)
Canadian journal of nonprofit and social economy research     Open Access   (Followers: 2)
Capitalism and Society     Hybrid Journal   (Followers: 2)
Capitalism Nature Socialism     Hybrid Journal   (Followers: 12)
Case Studies in Business and Management     Open Access   (Followers: 9)
CBU International Conference Proceedings     Open Access   (Followers: 1)
Central European Business Review     Open Access   (Followers: 1)
Central European Journal of Operations Research     Hybrid Journal   (Followers: 5)
Central European Journal of Public Policy     Open Access   (Followers: 2)
CESifo Economic Studies     Hybrid Journal   (Followers: 16)
Chain Reaction     Full-text available via subscription  
Challenge     Full-text available via subscription   (Followers: 4)
China & World Economy     Hybrid Journal   (Followers: 15)
China : An International Journal     Full-text available via subscription   (Followers: 16)
China Economic Journal: The Official Journal of the China Center for Economic Research (CCER) at Peking University     Hybrid Journal   (Followers: 10)
China Economic Review     Hybrid Journal   (Followers: 9)
China Finance Review International     Hybrid Journal   (Followers: 5)
China Nonprofit Review     Hybrid Journal   (Followers: 3)
China perspectives     Open Access   (Followers: 11)
Chinese Economy     Full-text available via subscription  
Ciência & Saúde Coletiva     Open Access   (Followers: 2)
CLIO América     Open Access   (Followers: 1)
Cliometrica     Hybrid Journal   (Followers: 3)
COEPTUM     Open Access  
Community Development Journal     Hybrid Journal   (Followers: 24)
Compensation & Benefits Review     Hybrid Journal   (Followers: 7)
Competition & Change     Hybrid Journal   (Followers: 10)
Competitive Intelligence Review     Hybrid Journal   (Followers: 2)
Competitiveness Review : An International Business Journal incorporating Journal of Global Competitiveness     Hybrid Journal   (Followers: 6)
Computational Economics     Hybrid Journal   (Followers: 9)
Computational Mathematics and Modeling     Hybrid Journal   (Followers: 8)
Computer Law & Security Review     Hybrid Journal   (Followers: 16)
Computers & Operations Research     Hybrid Journal   (Followers: 10)
Construction Innovation: Information, Process, Management     Hybrid Journal   (Followers: 14)
Contemporary Wales     Full-text available via subscription   (Followers: 3)
Contextus - Revista Contemporânea de Economia e Gestão     Open Access   (Followers: 1)
Contributions to Political Economy     Hybrid Journal   (Followers: 5)
Corporate Communications An International Journal     Hybrid Journal   (Followers: 6)
Corporate Philanthropy Report     Hybrid Journal   (Followers: 2)
Corporate Reputation Review     Hybrid Journal   (Followers: 4)
Creative and Knowledge Society     Open Access   (Followers: 10)
Creative Industries Journal     Hybrid Journal   (Followers: 9)
CRIS - Bulletin of the Centre for Research and Interdisciplinary Study     Open Access   (Followers: 1)
Crossing the Border : International Journal of Interdisciplinary Studies     Open Access   (Followers: 4)
Cuadernos de Administración (Universidad del Valle)     Open Access   (Followers: 2)
Cuadernos de Economía     Open Access   (Followers: 2)
Cuadernos de Economia - Latin American Journal of Economics     Open Access   (Followers: 2)
Cuadernos de Estudios Empresariales     Open Access   (Followers: 2)
Current Opinion in Creativity, Innovation and Entrepreneurship     Open Access   (Followers: 9)
De Economist     Hybrid Journal   (Followers: 12)
Decision Analysis     Full-text available via subscription   (Followers: 8)
Decision Sciences     Hybrid Journal   (Followers: 16)
Decision Support Systems     Hybrid Journal   (Followers: 16)
Defence and Peace Economics     Hybrid Journal   (Followers: 17)
der markt     Hybrid Journal   (Followers: 1)
Desenvolvimento em Questão     Open Access  

        1 2 3 4 5 6 | Last

Journal Cover Central European Journal of Operations Research
  [SJR: 0.837]   [H-I: 17]   [5 followers]  Follow
   Hybrid Journal Hybrid journal (It can contain Open Access articles)
   ISSN (Print) 1613-9178 - ISSN (Online) 1435-246X
   Published by Springer-Verlag Homepage  [2352 journals]
  • Editorial
    • Authors: Janez Povh; Lidija Zadnik Stirn; Janez Žerovnik
      Pages: 521 - 523
      PubDate: 2017-09-01
      DOI: 10.1007/s10100-017-0476-9
      Issue No: Vol. 25, No. 3 (2017)
  • Newsvendor problem under complete uncertainty: a case of innovative
    • Authors: Helena Gaspars-Wieloch
      Pages: 561 - 585
      Abstract: Abstract The paper presents a new scenario-based decision rule for the classical version of the newsvendor problem (NP) under complete uncertainty (i.e. uncertainty with unknown probabilities). So far, NP has been analyzed under uncertainty with known probabilities or under uncertainty with partial information (probabilities known incompletely). The novel approach is designed for the sale of new, innovative products, where it is quite complicated to define probabilities or even probability-like quantities, because there are no data available for forecasting the upcoming demand via statistical analysis. The new procedure described in the contribution is based on a hybrid of Hurwicz and Bayes decision rules. It takes into account the decision maker’s attitude towards risk (measured by coefficients of optimism and pessimism) and the dispersion (asymmetry, range, frequency of extremes values) of payoffs connected with particular order quantities. It does not require any information about the probability distribution.
      PubDate: 2017-09-01
      DOI: 10.1007/s10100-016-0458-3
      Issue No: Vol. 25, No. 3 (2017)
  • Economic model predictive inventory routing and control
    • Authors: Athanassios Nikolakopoulos; Ioannis Ganas
      Pages: 587 - 609
      Abstract: Abstract The paper proposes an economic model predictive control (EMPC) strategy for the inventory routing problem under demand uncertainty. The strategy is illustrated using an application on industrial gas distribution systems, where the product is transported to customers in small tanks and the inventory levels at the customers’ sites are monitored and controlled by the supplier following a vendor managed inventory approach. The objective is to produce balanced decisions for the joint routing and the inventory control problem over the planning horizon with respect to the decision maker’s perspective against stock-out risk. The proposed EMPC strategy makes use of a mixed integer mathematical programming optimization model that describes the deterministic inventory routing problem with simultaneous pickups and deliveries over a specific planning horizon. A time series decomposition forecasting model is used for predicting future demand and an exact linearization of the quadratic term of the objective function guarantees optimality of the solutions. The proposed methodology is illustrated using two examples featuring a single distribution centre, and three customers with simple and complex demand profiles. It is shown that EMPC offers a useful tool for producing balanced decisions between transportation and inventory costs and tracking of the safety inventory levels.
      PubDate: 2017-09-01
      DOI: 10.1007/s10100-017-0472-0
      Issue No: Vol. 25, No. 3 (2017)
  • A qualitative multi-criteria modelling approach to the assessment of
           electric energy production technologies in Slovenia
    • Authors: Marko Bohanec; Nejc Trdin; Branko Kontić
      Pages: 611 - 625
      Abstract: Abstract A methodological approach to the strategic evaluation of electric energy production technologies in Slovenia is presented. The aim of this work is to make a transparent and reproducible identification of reliable, rational, and environmentally sound production of electric energy in Slovenia by 2050. The approach is based on a qualitative multi-criteria modelling method DEX and consists of three stages: (1) assessment of individual technologies for electricity production, (2) assessment of mixtures of technologies and (3) evaluation of scenarios of shutting-down existing old power plants and constructing the new ones until 2050. Technology alternatives include both conventional and renewable energy sources: coal fired, gas fired, biomass fired, oil fired, nuclear, hydro, wind, and photovoltaic. The results indicate that only mixtures of nuclear, hydro, and gas fired technologies can meet expected energy needs in a sufficiently reliable and rational way.
      PubDate: 2017-09-01
      DOI: 10.1007/s10100-016-0457-4
      Issue No: Vol. 25, No. 3 (2017)
  • Approximating incompletely defined utility functions of qualitative
           multi-criteria modeling method DEX
    • Authors: Matej Mihelčić; Marko Bohanec
      Pages: 627 - 649
      Abstract: Abstract Decision analysis is aimed at supporting people who make decisions in order to satisfy their needs and objectives. The method called DEX is a qualitative multi-criteria decision analysis approach that provides support to decision makers in evaluating and choosing decision alternatives by using discrete attributes and rule-based utility functions. In this work, we extend our previous efforts of approximating complete, monotone DEX utility functions with methods Direct marginals, UTADIS and Conjoint analysis to incompletely defined utility functions. The experiments are performed both on functions obtained by solving real world decision making problems and on artificially created ones. The results show that all three methods provide accurate approximations of incompletely defined DEX utility functions, when the evaluation is done only on rules present in these incompletely defined functions. Among the three methods, the Conjoint analysis method generally has the best performance, however it is closely followed by the Direct marginals method. The Conjoint analysis method also achieves a better performance in approximating fully defined DEX utility functions by using incompletely defined instances of those functions. The UTADIS method performs comparatively well with functions having a high percentage of missing values.
      PubDate: 2017-09-01
      DOI: 10.1007/s10100-016-0451-x
      Issue No: Vol. 25, No. 3 (2017)
  • Hybrid genetic algorithms with selective crossover for the capacitated p
           -median problem
    • Authors: L’udmila Jánošíková; Miloš Herda; Michal Haviar
      Pages: 651 - 664
      Abstract: Abstract The paper suggests two ways of combining a genetic algorithm with integer programming to improve the quality of the problem solution. The motivation is that today’s integer programming solvers are very sophisticated and efficient, and they are worth utilizing in combination with metaheuristics to solve hard combinatorial optimization problems. The capacitated p-median problem is chosen as an example of a problem that is intractable for an exact method and that needs a heuristic or metaheuristic method, e.g. a genetic algorithm, to get a near-optimal solution. A genetic algorithm can be combined with integer programming in such a way that the metaheuristic acts at a higher level and controls the calls to the solver, or the solver can be used as a post-processing technique to improve the best solution. Two variants of the hybrid genetic algorithm are tested using benchmark instances. Moreover, a new crossover operator is proposed, that uses the knowledge of the problem domain to preserve only positive traits of the parents in the offspring. The computational experiments suggest that the operator enables to improve the behaviour of the genetic algorithm.
      PubDate: 2017-09-01
      DOI: 10.1007/s10100-017-0471-1
      Issue No: Vol. 25, No. 3 (2017)
  • Semi-fair design of emergency service system with failing centers
    • Authors: Jaroslav Janáček; Marek Kvet
      Pages: 665 - 677
      Abstract: Abstract This paper deals with the semi-fair emergency system design problem with reliable and failing service centers, in which the request of equal accessibility is taken into account. Within this paper, we introduce a semi-fair approach, which is based on the combination of so-called min-sum optimal design and the lexicographic min-max optimal design. It follows the idea of replacing a portion of less preferred levels of the lexicographical min-max optimization by one min-sum optimization process. The radial formulation of the problem was used as a basic concept of solving technique. We study two possible approaches from the point of computational time necessary for the semi-fair emergency system design and the price of fairness.
      PubDate: 2017-09-01
      DOI: 10.1007/s10100-016-0456-5
      Issue No: Vol. 25, No. 3 (2017)
  • Does the location and the institutional background matter in convergence
           modelling of the EU regions'
    • Authors: Michaela Chocholatá; Andrea Furková
      Pages: 679 - 697
      Abstract: Abstract The paper focuses on the testing of regional income convergence of NUTS2 EU regions during the 2000–2011 period with the emphasis on conditional income convergence using both non-spatial and spatial approaches. In order to examine the fact that the per capita GDP growth rate in one region may be associated with the growth rate in neighbouring regions, our empirical part begins with the Exploratory Spatial Data Analysis (ESDA). This preliminary analysis based on the ESDA tools has suggested the appropriateness of the spatial aspect in income regional convergence modelling. Following these results, we proceed with the estimation of the beta-convergence models for purpose of verifying various absolute and conditional convergence hypotheses. The estimation of the income convergence models confirmed that the spatial dependence among regions does matter. We have also employed the dummy variable corresponding to the former political orientation of the regions in order to test the conditional convergence hypothesis assuming that it controls for different country specific factors. The incorporation of the dummy variable enabled us to assess the speed of convergence and the half-life time separately for two groups of regions under the consideration (post-communist or not). Almost all hypotheses of the analysed convergence models were confirmed. The inclusion of spatial effects to the models always led to worsening of the convergence characteristics. Overall, the results of our analysis imply that convergence process is not determined only by a region’s initial income and other specific factors but also essentially by its neighbourhood region’s growth performance.
      PubDate: 2017-09-01
      DOI: 10.1007/s10100-016-0447-6
      Issue No: Vol. 25, No. 3 (2017)
  • Frequency assignment problem in networks with limited spectrum
    • Authors: Zehui Shao; Aleksander Vesel; Jin Xu
      Pages: 699 - 723
      Abstract: The frequency assignment problem (FAP) asks for assigning frequencies (channels) in a wireless network from the available radio spectrum to the transceivers of the network. One of the graph theoretical models of FAP is the L(3, 2, 1)-labeling of a graph, which is an abstraction of assigning integer frequencies to radio transceivers such that (i) transceivers that are one unit of distance apart receive frequencies that differ by at least three, (ii) transceivers that are two units of distance apart receive frequencies that differ by at least two, and (iii) transceivers that are three units of distance apart receive frequencies that differ by at least one. The relaxation of the L(3, 2, 1)-labeling called the (s, t, r)-relaxed k-L(3, 2, 1)-labeling is proposed in this paper. This concept is a generalization of the (s, t)-relaxed k-L(2, 1)-labeling (Lin in J Comb Optim 2016, doi:10.1007/s10878-014-9746-9). Basic properties of (s, t, r)-relaxed k-L(3, 2, 1)-labeling are discussed and optimal (s, t, r)-relaxed k-L(3, 2, 1)-labelings for paths and some cycles as well as for the hexagonal lattice and the square lattice are determined.
      PubDate: 2017-09-01
      DOI: 10.1007/s10100-016-0462-7
      Issue No: Vol. 25, No. 3 (2017)
  • Interval convex quadratic programming problems in a general form
    • Authors: Milan Hladík
      Pages: 725 - 737
      Abstract: Abstract This paper addresses the problem of computing the minimal and the maximal optimal value of a convex quadratic programming (CQP) problem when the coefficients are subject to perturbations in given intervals. Contrary to the previous results concerning on some special forms of CQP only, we present a unified method to deal with interval CQP problems. The problem can be formulated by using equation, inequalities or both, and by using sign-restricted variables or sign-unrestricted variables or both. We propose simple formulas for calculating the minimal and maximal optimal values. Due to NP-hardness of the problem, the formulas are exponential with respect to some characteristics. On the other hand, there are large sub-classes of problems that are polynomially solvable. For the general intractable case we propose an approximation algorithm. We illustrate our approach by a geometric problem of determining the distance of uncertain polytopes. Eventually, we extend our results to quadratically constrained CQP, and state some open problems.
      PubDate: 2017-09-01
      DOI: 10.1007/s10100-016-0445-8
      Issue No: Vol. 25, No. 3 (2017)
  • A new method for strategic decision-making in higher education
    • Authors: Nikola Kadoić; Nina Begičević Ređep; Blaženka Divjak
      Abstract: Abstract Using the appropriate methodology for strategic decision-making in higher education is crucial to make effective decisions. In this paper, the analytic network process (ANP), one of the most suitable decision-making methods in terms of higher education issues, is presented and evaluated from the position of the user. After recognising some characteristics of the ANP that can be improved, the main objective of this research was to develop a new method based on the characteristics of the ANP and social network analysis (SNA). The research methodology used in this paper is the design science research process (DSRP), which is often used to design new artefacts, such as models, methods and methodologies. The main phases of this approach include problem identification, objectives of a solution, design and development, demonstration of the artefact, evaluation and dissemination. By using the DSRP, a new decision-making method is designed and proposed. The new method has two components that are based on the ANP and SNA. The first component is related to determining the importance of criteria with respect to the goal of decision-making. The second component is related to modelling influences/dependencies between criteria, and identifying criteria that strongly influence others, as well as criteria that others depend on. A measure that describes how strong a particular criterion is in terms of influences/dependencies is based on the centrality degree, one of the most fundamental centrality measures. In this paper, the new method, which was evaluated on several cases, is demonstrated with example of evaluating scientists, and a comparison of the new method’s results and the ANP method’s results is presented.
      PubDate: 2017-10-11
      DOI: 10.1007/s10100-017-0497-4
  • A generalization of the Thurstone method for multiple choice and
           incomplete paired comparisons
    • Authors: Éva Orbán-Mihálykó; Csaba Mihálykó; László Koltay
      Abstract: Abstract A ranking method based on paired comparisons is proposed. The object’s characteristics are considered as random variables and the observers judge about their differences. The differences are classified. More than two classes are allowed. Assuming Gauss distributed latent random variables we set up the likelihood function and estimate the parameters by the maximum likelihood method. The rank of the objects is the order of the expectations. We analyse the log-likelihood function and provide reasonable conditions for the existence of the maximum value and the uniqueness of the maximizer. Some illustrative examples are also presented. The method can be applied in case of incomplete comparisons as well. It allows constructing confidence intervals for the probabilities and testing the hypothesis that there are no significant differences between the expectations.
      PubDate: 2017-10-10
      DOI: 10.1007/s10100-017-0495-6
  • An exact approach for the r-interdiction covering problem with
    • Authors: Marcos Costa Roboredo; Luiz Aizemberg; Artur Alves Pessoa
      Abstract: Abstract In this paper we treat the r-interdiction covering problem with fortification (RICF). The environment of this problem is composed of a set of customers J and a set of facilities I. For each customer j, there is set of facilities containing the facilities that can cover the demand of j. The system efficiency is given by the sum of the total covered demand. The facilities are subject to interdictions. When a facility is interdicted, it can not cover the demand of any customer. To mitigate the negative impact of the interdictions on the system efficiency, the system planner can fortify a subset of facilities. If a facility is fortified then it can not be interdicted. The RICF consists of choosing q facilities to be fortified knowing that r not fortified facilities will be interdicted at the worst case. We propose a branch-and-cut algorithm for the problem. Our results are compared with the exact method found in the literature, being faster for the most instances, mainly the large ones.
      PubDate: 2017-10-05
      DOI: 10.1007/s10100-017-0494-7
  • Analyzing total-factor energy efficiency in Croatian counties: evidence
           from a non-parametric approach
    • Authors: Djula Borozan; Luka Borozan
      Abstract: Abstract Using energy efficiently has become top priority concern which requires an adequate policy reaction bearing in mind both energy conservation and efforts to combat adverse climate changes. The paper explored the total-factor energy efficiency and change trends in technical efficiency in the Croatian counties during the period 2001–2013. Employing data envelopment analysis, the overall technical, pure technical and scale efficiency are assessed. Considering the empirical results, we have concluded the following. Technical inefficiency is generated almost equally by the pure technical effect and an incorrect production scale. The overall geographical distribution of the technical efficiency scores points to the presence of spatial concentration, i.e., a dualistic pattern (centre vs. periphery) in the production process. The differences between the best practice and the worst technical efficiency scores indicate the presence of significant disparities among Croatian counties. The years with deteriorating electricity efficiency seem to coincide with the important economic/energy changes that happened in Croatia. Finally, subnational governments may play an important role in energy efficiency policies.
      PubDate: 2017-09-30
      DOI: 10.1007/s10100-017-0493-8
  • Stakes or garlic' Studying the emergence of dominant designs through
           an agent-based model of a vampire economy
    • Authors: Michelle D. Haurand; Christian Stummer
      Abstract: Abstract Real-life examples have demonstrated that technological advantages might not be sufficient to establish a leading market position. Insights into the emergence of a so-called dominant design are therefore not only of academic interest but are also of practical relevance. In the past, the paths leading toward a dominant design have typically been examined ex-post by means of case studies, which obviously limits the ability to systematically analyze factors that might play a role in these formation processes. In contrast, agent-based modeling and simulation, a relatively new method, is particularly well suited for the systematic investigation of these complex processes as it allows for variation of the parameters describing the market under consideration followed by observation of the corresponding system behavior. In this paper, we will demonstrate the ability of an agent-based approach to simulate the emergence of dominant designs in a hypothetical application taken from the world of vampires, in which humans must choose weapons to defend themselves against assaults from their supernatural adversaries. This setting makes it possible to test the effectivity of various measures, such as advertising or providing opportunities to practice, aimed at supporting market diffusion of the respective weapons. It turns out that technologically superior alternatives often, but not always, succeed in becoming the dominant design and that applying certain measures (and countermeasures) can indeed significantly influence this outcome.
      PubDate: 2017-09-22
      DOI: 10.1007/s10100-017-0492-9
  • New mathematical models for team formation of sports clubs before the
    • Authors: Gerçek Budak; İmdat Kara; Yusuf Tansel İç; Refail Kasımbeyli
      Abstract: Abstract Coaches of sports clubs aim to form the team that optimally determines the roles of positions before the match. These types of decisions are referred to as the team formation problem, and they are critical for the sports industry in the financial sense. Finding the optimal solution to the team formation problem is more difficult without the use of systematical approaches, as the number of players and their past performance records have increased substantially in recent years. In this paper, we discuss previous studies on the team formation problems of sports clubs and outline the deficiencies of their results in real-life decision processes. Then, we propose two new formulations that address coaches’ preferences in the decision-making process. A real-life application of the proposed models is displayed for a volleyball team that participates in the first division of the Turkish Volleyball League.
      PubDate: 2017-09-18
      DOI: 10.1007/s10100-017-0491-x
  • Improved bounded dynamic programming algorithm for solving the blocking
           flow shop problem
    • Authors: Ansis Ozolins
      Abstract: Abstract In this paper, the blocking flow shop problem is considered. An exact algorithm for solving the blocking flow shop problem is developed by means of the bounded dynamic programming approach. The proposed algorithm is tested on several well-known benchmark instances. Computational results show that the presented algorithm outperforms all the state-of-the-art exact algorithms known to the author. Additionally, the optimality is proven for 26 previously open instances. Furthermore, we provide new lower bounds for several benchmark problem sets of Taillard requiring a relatively short CPU time.
      PubDate: 2017-09-14
      DOI: 10.1007/s10100-017-0488-5
  • Modified indices of political power: a case study of a few parliaments
    • Authors: Tomislav Marošević; Ivan Soldo
      Abstract: Abstract According to yes–no voting systems, players (e.g., parties in a parliament) have some influence on making some decisions. In formal voting situations, taking into account that a majority vote is needed for making a decision, the question of political power of parties can be considered. There are some well-known indices of political power e.g., the Shapley–Shubik index, the Banzhaf index, the Johnston index, the Deegan–Packel index. In order to take into account different political nature of the parties, as the main factor for forming a winning coalition i.e., a parliamentary majority, we give a modification of the power indices. For the purpose of comparison of these indices of political power from the empirical point of view, we consider the indices of power in some cases, i.e., in relation to a few parliaments.
      PubDate: 2017-09-11
      DOI: 10.1007/s10100-017-0487-6
  • Computing strong lower and upper bounds for the integrated multiple-depot
           vehicle and crew scheduling problem with branch-and-price
    • Authors: Markó Horváth; Tamás Kis
      Abstract: Abstract In the problem of the title, vehicle and crew schedules are to be determined simultaneously in order to satisfy a given set of trips over time. The vehicles and the crew are assigned to depots, and a number of rules have to be observed in the course of constructing feasible schedules. The main contribution of the paper is a novel mathematical programming formulation which combines ideas from known models, and an exact solution procedure based on branch-and-price. The method is tested on benchmark instances from the literature and it provides suboptimal schedules using limited computational resources.
      PubDate: 2017-09-11
      DOI: 10.1007/s10100-017-0489-4
  • Discounting revisited: evolutionary perspectives on competition and
           coordination in a supply chain with multiple retailers
    • Abstract: Abstract We study the effect of appending regular, wholesale prices with a conventional, single price-break point quantity discount offered by a supplier to multiple retailers engaged in a Cournot–Nash competition. It is commonly observed in real-life supply chains that the retail price does not drop at once to the extent of the wholesale price discount. We capture this inertia with an evolutionary analysis which assumes that not every retailer immediately adopts a discounting strategy. We find that evolutionary dynamics then might alter the expected final outcome of the competition and show that the supplier will not be able to induce simultaneously both perfect coordination and perfect competition regardless of the type of retailers he is dealing with. Moreover, though the profits the supply chain gains are highest when the supplier perfectly coordinates it, we show that the retailers retain a non-zero profit margin in such a case. As a result, the supplier will not necessarily want to coordinate the supply chain, preferring instead to gain the same amount of profit from the perfect competition between the retailers attracted by the discount.
      PubDate: 2017-09-08
      DOI: 10.1007/s10100-017-0490-y
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