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Article
Publication date: 26 July 2011

John O'Shaughnessy and Nicholas Jackson O'Shaughnessy

This paper is a rejoinder to Lusch and Vargo's defense of their service‐dominant logic paper against criticism.

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3872

Abstract

Purpose

This paper is a rejoinder to Lusch and Vargo's defense of their service‐dominant logic paper against criticism.

Design/methodology/approach

The paper responds to Lusch and Vargo's defense and criticism of the initial article primarily through examining the logic of their case.

Findings

The paper finds that both the charges and the arguments against the criticism have no merit.

Research limitations/implications

The paper offers guidance as to the approach needed to advance the study of service marketing. This rejects the notion that viewing all businesses as service entities is a progressive approach but recommends a disjunctive definition of service, which would throw up service‐categories that needed to be studied in their own right if progress is to be made.

Originality/value

The paper suggests that Lusch and Vargo's S‐D‐dominant logic is unlikely to be practically fruitful while remaining theoretically limited.

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Article
Publication date: 1 January 1981

T. RADECKI

A new method of document retrieval is presented on the basis of fundamental fuzzy set theory operations and the notion of a semantic disjunctive normal form. Concepts of…

Abstract

A new method of document retrieval is presented on the basis of fundamental fuzzy set theory operations and the notion of a semantic disjunctive normal form. Concepts of semantic normal forms are defined, i.e. the semantic disjunctive normal form and the semantic conjunctive normal form, and their elementary properties, are presented. The syntax and the semantics of the proposed document retrieval language are given and an algorithm for allocating documents to particular queries is described. The document retrieval strategy based on the concept of a semantic disjunctive normal form is exemplified. A basic advantage of the use of the fuzzy set theory for the document retrieval system description is that it takes, in a simple way, into consideration the differentiation of descriptor importance, document search patterns and the differentiation of formal relevance grades of individual documents to a given query. In an information system the documents of the highest grades of formal relevance to a given query are retrieved by means of the application of simple operations of the fuzzy set theory.

Details

Kybernetes, vol. 10 no. 1
Type: Research Article
ISSN: 0368-492X

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Article
Publication date: 1 December 2005

Shiu Hong Choi and Feng Yu Yang

The disjunctive graph is a network representation of the job‐shop scheduling problem, while the longest path problem (LPP) is one of the most important subjects in this…

Abstract

Purpose

The disjunctive graph is a network representation of the job‐shop scheduling problem, while the longest path problem (LPP) is one of the most important subjects in this research field. This paper aims to study the special topological structure of the disjunctive graph, and proposes a suite of quick value‐setting algorithms for solving the LPPs commonly encountered in job‐shop scheduling.

Design/methodology/approach

The topological structure of the disjunctive graph is analyzed, and some properties and propositions regarding LPPs are presented. Subsequently, algorithms are proposed for solving LPPs encountered in job‐shop scheduling.

Findings

The proposed algorithms significantly improve the efficiency of the shifting‐bottleneck procedure, making it practicable to realise real‐time scheduling and hence effective operations of modern manufacturing systems.

Originality/value

The paper demonstrates that it is possible to develop very efficient algorithms by imposing a special topological structure on the network.

Details

Journal of Manufacturing Technology Management, vol. 16 no. 8
Type: Research Article
ISSN: 1741-038X

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Article
Publication date: 1 October 1998

Marilyn Domas White

This article characterises the questioning behaviour in reference interviews preceding delegated online searches of bibliographic databases and relates it to questioning…

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2899

Abstract

This article characterises the questioning behaviour in reference interviews preceding delegated online searches of bibliographic databases and relates it to questioning behaviour in other types of interviews/settings. With one exception, the unit of analysis is the question (N=610), not the interview. The author uses A.C. Graesser‘s typology of questions to analyse type of question and M.D. White’s typology of information categories to determine the question‘s content objective; this is the first application of Graesser’s typology to interview questions in any setting. Graesser‘s categories allow for a more subtle understanding of the kind of information need underlying a question. Comparisons are made between questions asked by the information specialist and those asked by the client. Findings show that the information specialist dominates the interview, about half the questions were verification questions and about 22% were judgemental questions or requests; all but four types of questions from Graesser’s categories appeared in the interviews, but no new question types were discovered. Clients often phrase questions as requests. In content, both clients and information specialists focus on the subject and service requested, but the clients ask also about search strategy and output features. Both parties ask predominantly short‐answer questions. Results are related to interface design for retrieval systems.

Details

Journal of Documentation, vol. 54 no. 4
Type: Research Article
ISSN: 0022-0418

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Article
Publication date: 30 March 2010

Maria Simosi

The aim of this paper is to explore the role of social socialization tactics on the relationship between task‐ and organization‐related information (socialization content…

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3667

Abstract

Purpose

The aim of this paper is to explore the role of social socialization tactics on the relationship between task‐ and organization‐related information (socialization content) and newcomers' affective commitment to their work organization.

Design/methodology/approach

A total of 280 new hires in a Greek service company participated in a survey. Moderated regression analyses were conducted to test research hypotheses.

Findings

The results supported the role of investiture‐divestiture tactics as a moderator in the relationship between newcomers' task‐related information acquisition and organizational affective commitment. In addition, serial‐disjunctive tactics were found to moderate the relationship between organization‐related information acquisition and newcomers' affective commitment. The study also demonstrated that both task‐related and organization‐related information acquisition are important to the development of newcomers' affective commitment at the early stages of the socialization process.

Research limitations/implications

Owing to the cross‐sectional design of the research, causality cannot be drawn.

Practical implications

The knowledge of whether, and the extent to which, particular socialization tactics and content areas contribute to newcomers' adjustment would provide organizations a competitive advantage by incorporating them into their socialization programs.

Originality/value

Provision of feedback affirming newcomers' personal characteristics as well as assignment of established role models were found to provide the framework within which the acquisition of task and organization‐related information respectively are related to new hires' affective commitment towards their work organization.

Details

Journal of Managerial Psychology, vol. 25 no. 3
Type: Research Article
ISSN: 0268-3946

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Article
Publication date: 2 March 2015

Ralf Östermark

– The purpose of this paper is to measure the financial risk and optimal capital structure of a corporation.

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470

Abstract

Purpose

The purpose of this paper is to measure the financial risk and optimal capital structure of a corporation.

Design/methodology/approach

Irregular disjunctive programming problems arising in firm models and risk management can be solved by the techniques presented in the paper.

Findings

Parallel processing and mathematical modeling provide a fruitful basis for solving ultra-scale non-convex general disjunctive programming (GDP) problems, where the computational challenge in direct mixed-integer non-linear programming (MINLP) formulations or single processor algorithms would be insurmountable.

Research limitations/implications

The test is limited to a single firm in an experimental setting. Repeating the test on large sample of firms in future research will indicate the general validity of Monte-Carlo-based VAR estimation.

Practical implications

The authors show that the risk surface of the firm can be approximated by integrated use of accounting logic, corporate finance, mathematical programming, stochastic simulation and parallel processing.

Originality/value

Parallel processing has potential to simplify large-scale MINLP and GDP problems with non-convex, multi-modal and discontinuous parameter generating functions and to solve them faster and more reliably than conventional approaches on single processors.

Details

Kybernetes, vol. 44 no. 3
Type: Research Article
ISSN: 0368-492X

Keywords

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Article
Publication date: 1 June 2003

Michel Laroche, Chankon Kim and Takayoshi Matsui

This study empirically investigates consumers’ use of five heuristics (conjunctive, disjunctive, lexicographic, linear additive, and geometric compensatory) in the…

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4078

Abstract

This study empirically investigates consumers’ use of five heuristics (conjunctive, disjunctive, lexicographic, linear additive, and geometric compensatory) in the consideration set formation, a critical first phase before actual choice behavior. Data were collected on the selection of beer brands and fast food outlets by real consumers. Using a decomposition approach in determining the consumers’ choice heuristics, it was found that the conjunctive heuristic is the most often used decision model in the consideration set formation for the two product classes. Implications for brand managers and future research directions are developed.

Details

Journal of Consumer Marketing, vol. 20 no. 3
Type: Research Article
ISSN: 0736-3761

Keywords

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Book part
Publication date: 31 January 2015

Soora Rasouli and Harry Timmermans

This chapter reviews models of decision-making and choice under conditions of certainty. It allows readers to position the contribution of the other chapters in this book…

Abstract

Purpose

This chapter reviews models of decision-making and choice under conditions of certainty. It allows readers to position the contribution of the other chapters in this book in the historical development of the topic area.

Theory

Bounded rationality is defined in terms of a strategy to simplify the decision-making process. Based on this definition, different models are reviewed. These models have assumed that individuals simplify the decision-making process by considering a subset of attributes, and/or a subset of choice alternatives and/or by disregarding small differences between attribute differences.

Findings

A body of empirical evidence has accumulated showing that under some circumstances the principle of bounded rationality better explains observed choices than the principle of utility maximization. Differences in predictive performance with utility-maximizing models are however small.

Originality and value

The chapter provides a detailed account of the different models, based on the principle of bounded rationality, that have been suggested over the years in travel behaviour analysis. The potential relevance of these models is articulated, model specifications are discussed and a selection of empirical evidence is presented. Aspects of an agenda of future research are identified.

Details

Bounded Rational Choice Behaviour: Applications in Transport
Type: Book
ISBN: 978-1-78441-071-1

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Article
Publication date: 1 October 2006

Mourad Oussalah

In previous work, the algebraical properties of this rule and its relationship with other generalized operator was studied. In this paper, the aim is to focus on one of…

Abstract

Purpose

In previous work, the algebraical properties of this rule and its relationship with other generalized operator was studied. In this paper, the aim is to focus on one of the previous steps, which consists in certainty qualification, and it is investigated how this factor influences the behavior of the induced combination rule.

Design/methodology/approach

Dubois and Prade have proposed an adaptive combination rule that moves gradually from a conjunctive mode to a disjunctive mode as soon as the conflict between the sources increases. The proposal can be viewed as a result of some rational steps. This includes: conjunctive combination; re‐normalization of a subnormal result that may results from conjunctive operation where the lack of normalization is interpreted as a conflict; certainty qualification; restriction of the conflict influence; generalization to more than two sources.

Findings

Algebraical properties of the proposals have been investigated and illustrations of some special cases are highlighted and evaluated. Further studies continue in Part II.

Originality/value

New functional adaptive rules are put forward based on Residual implicators and t‐conorm operators.

Details

Kybernetes, vol. 35 no. 9
Type: Research Article
ISSN: 0368-492X

Keywords

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Article
Publication date: 1 March 1993

Khalil Nakib, Abdelrazzak Charbaji and Jamal Hamdan

The purpose of this study was to examine three different socialization tactics (social, context, and content) used by Lebanese commercial banks. A survey instrument was…

Abstract

The purpose of this study was to examine three different socialization tactics (social, context, and content) used by Lebanese commercial banks. A survey instrument was distributed to 115 newcomer employees. It was found that Lebanese commercial banks socialize their new employees to be effective members.

Details

International Journal of Commerce and Management, vol. 3 no. 3/4
Type: Research Article
ISSN: 1056-9219

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