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1 – 10 of 32
Article
Publication date: 3 October 2016

A.S. Arjun Raj and Sekar Vinodh

The purpose of this paper is to report a research on application of ORESTE (Organization, Rangement Et Synthese De Donnees Relationnelles, when translated into English means…

Abstract

Purpose

The purpose of this paper is to report a research on application of ORESTE (Organization, Rangement Et Synthese De Donnees Relationnelles, when translated into English means organization, storage and summarizing data relational) for agile concept selection.

Design/methodology/approach

The concept selection problem has been formulated as a multi-criteria decision-making (MCDM) problem to select the best concept design of the rotary switch component. ORESTE has been used as solution methodology. The selected concept design alternatives were subjected to implementation.

Findings

As ORESTE is a preferential outranking method, it uses ordinal data, enabling decision makers in situations where practically sufficient data are not available. This paper uses ORESTE for agile concept selection where gathering sufficient data is difficult. Also, the results generated by ORESTE have been compared with technique for order performance by similarity to an ideal solution.

Research limitations/implications

In the present study, ORESTE has been applied for concept selection of rotary switch component. In future, more number of studies need to be conducted to select more concept design alternatives where getting prior information is difficult or consumes more time to ensure practical effectiveness of ORESTE.

Practical implications

The application of ORESTE for concept design selection enabled the practitioners to select the best concept with ordinal data and also enabled scope for indifferentiability and incomparableness of any two alternatives in the final outranking.

Originality/value

Formulation of MCDM problem for agile concept selection and solution generation using ORESTE is the original contribution of the authors.

Details

Journal of Engineering, Design and Technology, vol. 14 no. 4
Type: Research Article
ISSN: 1726-0531

Keywords

Article
Publication date: 11 November 2019

Salvatore Capasso, Oreste Napolitano and Ana Laura Viveros Jiménez

The purpose of this paper is to analyse the long-term nature of the interrelationship between interest rate and exchange rate.

Abstract

Purpose

The purpose of this paper is to analyse the long-term nature of the interrelationship between interest rate and exchange rate.

Design/methodology/approach

By employing Mexican data, the authors estimate a non-linear autoregressive distributed lags (NARDL) model to investigate the nature of the changes and the interaction between interest rate and exchange rate in response to monetary authorities’ actions.

Findings

The results show that, contrary to simplistic predictions, the real exchange rate causes the real interest rate in an asymmetric way. The bounds testing approach of the NARDL models suggests the presence of co-integration among the variables and the exchange rate variations appear to have significant long-run effects on the interest rate. Most importantly, these effects are asymmetric and positive variations in the exchange rate have a lower impact on the interest rate. It is also interesting to report that the reverse is not true: the interest rate in the long-run exerts no statistical significant impact on the exchange rate.

Practical implications

The asymmetric long-term relationship between real exchange rate and real interest rate is evidence of why monetary authorities are reluctant to free float exchange rate. In Mexico, as in most developing countries, monetary policy strongly responds to exchange rate movements because these have relevant effects on commercial trade. Moreover, in dollarized economies these effects are stronger because of pass-through impacts to inflation, income distribution and balance-sheet equilibrium (the well-known “original sin”).

Originality/value

Under inflation targeting and flexible exchange rate regime, despite central banks pursue the control of short-term interest rate, in the long-run one could observe that it is the exchange rate that influences the interest rate, and that this reverse causality is stronger in emerging economies. This paper contributes by analysing the asymmetric relationship between the variables.

Details

Journal of Economic Studies, vol. 46 no. 7
Type: Research Article
ISSN: 0144-3585

Keywords

Article
Publication date: 28 March 2023

Salvatore Capasso, Oreste Napolitano and Ana Laura Viveros Jiménez

The idea of this study is to provide a solid Financial Condition Index (FCI) that allows the monetary transmission policy to be monitored in a country which in recent decades has…

Abstract

Purpose

The idea of this study is to provide a solid Financial Condition Index (FCI) that allows the monetary transmission policy to be monitored in a country which in recent decades has suffered from major financial and monetary crises.

Design/methodology/approach

The authors construct three FCIs for Mexico to analyse the role of financial asset prices in formulating monetary policy under an inflation-targeting regime. Using monthly data from 1995 to 2017, the authors estimate FCIs with two different methodologies and build the index by taking into account the mechanism of transmission of monetary policy and incorporating the most relevant financial variables.

Findings

This study’s results show that, likewise for developing countries as Mexico, an FCI could be a useful tool for managing monetary policy in reducing macroeconomic fluctuations.

Originality/value

Apart from building a predictor of possible financial stress, the authors construct an FCI for a central bank that pursues inflation targeting and to analyse the role of financial asset prices in formulating monetary policy.

Highlights

  1. We construct three FCIs for Mexico to analyse the role of financial asset prices in formulating monetary policy under an inflation-targeting regime.

  2. The FCIs are based on (1) a vector autoregression model (VAR); (2) an autoregressive distributed lag model (ARDL) and (3) a factor-augmented vector autoregression model (FAVAR).

  3. FCI could become a new target for monetary policy within a hybrid inflation-targeting framework.

  4. FCI could be a good tool for managing monetary policy in developing countries with a low-inflation environment.

We construct three FCIs for Mexico to analyse the role of financial asset prices in formulating monetary policy under an inflation-targeting regime.

The FCIs are based on (1) a vector autoregression model (VAR); (2) an autoregressive distributed lag model (ARDL) and (3) a factor-augmented vector autoregression model (FAVAR).

FCI could become a new target for monetary policy within a hybrid inflation-targeting framework.

FCI could be a good tool for managing monetary policy in developing countries with a low-inflation environment.

Details

Journal of Economic Studies, vol. 50 no. 8
Type: Research Article
ISSN: 0144-3585

Keywords

Article
Publication date: 30 October 2018

Luciano Oreste Dal Mas and Karin Barac

The purpose of this paper is to investigate the relationship between the leadership style of a chief audit executive (CAE) and the perceived effectiveness of the internal auditing…

1875

Abstract

Purpose

The purpose of this paper is to investigate the relationship between the leadership style of a chief audit executive (CAE) and the perceived effectiveness of the internal auditing (IA) function that he/she leads. Perceived IA effectiveness is based on identified attributes in the literature influencing IA effectiveness. The aim of this paper is thus to expand the IA effectiveness debate by adding individual differences in CAEs’ leadership styles as a research focus.

Design/methodology/approach

A quantitative approach is followed. A survey was conducted on a sample of 58 IA students enrolled in a master’s degree programme at a South African university; all students hold senior positions in IA.

Findings

The study confirms that the CAE leadership style significantly influences the identified attributes of perceived IA effectiveness. It further shows that the traditional conceptualisation of leadership (as transformational, transactional and/or laissez-faire) might not be appropriate for or compatible with leaders of professional teams in a regulated environment.

Practical implications

Practically, the study identifies and explores attributes influencing IA effectiveness that are within the purview of the CAE’s leadership style and within his/her ability to influence. This information could (re)direct leadership development training programmes presented in industry and by the Institute of Internal Auditors (IIA), and at organisational level, it could inform appointment and retention and succession practices for heads of and senior management in IA.

Social implications

CAEs are cautioned about the limitations imposed by laissez-faire leadership on IA effectiveness. They should strive to become both transformative and transactional leaders as it has a significant influence on the effectiveness of their IA functions, and by being more effective, they can demonstrate the value proposition of IA. Organisations need to create the environment in which CAEs can act as transformational and transactional leaders. The IIA, as the pre-eminent professional body, could become involved in developing leadership skills of its members. The IIA could provide guidance on leadership styles for CAEs and could also offer formal training initiatives to internal auditors on skills needed to lead IA teams.

Originality/value

This paper may open a new research area in IA effectiveness by focussing on the role and leadership qualities of the CAE.

Article
Publication date: 20 February 2007

Cengiz Kahraman, Nüfer Yasin Ateş, Sezi Çevik, Murat Gülbay and S. Ayça Erdoğan

To develop a multi‐attribute decision making model for evaluating and selecting among logistic information technologies.

3857

Abstract

Purpose

To develop a multi‐attribute decision making model for evaluating and selecting among logistic information technologies.

Design/methodology/approach

First a multi‐attribute decision making model for logistic information technology evaluation and selection consisting of 4 main and 11 sub criteria is constructed, then a hierarchical fuzzy TOPSIS method is developed to solve the complex selection problem with vague and linguistic data. Sensitivity analysis is presented.

Findings

Reviews the literature and provides a structured hierarchical model for logistic information technology evaluation and selection based on the premise that the logistic information technology evaluation and selection problem can be viewed as a product of tangible benefits, intangible benefits, policy issues and resources. Defines tangible benefits as cost savings, increased revenue, and return on investment; intangible benefits as customer satisfaction, quality of information, multiple uses of information, and setting tone for future business; policy issues as risk and necessity level; resources as costs and completion time. Presents a methodology that is developed for the complex, uncertain and vague characteristics of the problem.

Research limitations/implications

Comparisons with other multi‐attribute decision making techniques such as AHP, ELECTRE, PROMETHEE and ORESTE under fuzzy conditions can be done for further research.

Practical implications

This article is a very useful source of information both for logistic managers and stakeholders in making decisions about logistic information technology investments.

Originality/value

This paper addresses the logistic information technology evaluation and selection criteria for practitioners and proposes a new multi‐attribute decision making methodology, hierarchical fuzzy TOPSIS, for the problem.

Details

Journal of Enterprise Information Management, vol. 20 no. 2
Type: Research Article
ISSN: 1741-0398

Keywords

Article
Publication date: 1 March 1987

Oreste Popescu

The Hispanic American Scholastics look at the price doctrine from a triple point of view: as an economic philosophy, as an instrument for regulating the market, and as an analytic…

Abstract

The Hispanic American Scholastics look at the price doctrine from a triple point of view: as an economic philosophy, as an instrument for regulating the market, and as an analytic basis[l].

Details

International Journal of Social Economics, vol. 14 no. 3/4/5
Type: Research Article
ISSN: 0306-8293

Open Access
Article
Publication date: 22 February 2021

Elisa Norio

The relationships between tourist resorts and transnational crime are rarely analyzed systematically. This paper begins to fill this gap by examining how organized crime groups…

5460

Abstract

Purpose

The relationships between tourist resorts and transnational crime are rarely analyzed systematically. This paper begins to fill this gap by examining how organized crime groups and individuals linked to them can take advantage of tourist resorts to commit crimes.

Details

Tourism Critiques: Practice and Theory, vol. 2 no. 1
Type: Research Article
ISSN: 2633-1225

Keywords

Article
Publication date: 1 October 2005

Alessio Bonelli and Oreste S. Bursi

To propose novel predictor‐corrector time‐integration algorithms for pseudo‐dynamic testing.

Abstract

Purpose

To propose novel predictor‐corrector time‐integration algorithms for pseudo‐dynamic testing.

Design/methodology/approach

The novel predictor‐corrector time‐integration algorithms are based on both the implicit and the explicit version of the generalized‐α method. In the non‐linear unforced case second‐order accuracy, stability in energy, energy decay in the high‐frequency range as well as asymptotic annihilation are distinctive properties of the generalized‐α scheme; while in the non‐linear forced case they are the limited error near the resonance in terms of frequency location and intensity of the resonant peak. The implicit generalized‐α algorithm has been implemented in a predictor‐one corrector form giving rise to the implicit IPC‐ρ method, able to avoid iterative corrections which are expensive from an experimental standpoint and load oscillations of numerical origin. Moreover, the scheme embodies a secant stiffness formula able to approximate closely the actual stiffness of a structure. Also an explicit algorithm has been implemented, the EPC‐ρb method, endowed with user‐controlled dissipation properties. The resulting schemes have been tested experimentally both on a two‐ and on a six‐degrees‐of‐freedom system, exploiting substructuring techniques.

Findings

The analytical findings and the tests have indicated that the proposed numerical strategies enhance the performance of the pseudo‐dynamic test (PDT) method even in an environment characterized by considerable experimental errors. Moreover, the schemes have been tested numerically on strongly non‐linear multiple‐degrees‐of‐freedom systems reproduced with the Bouc‐Wen hysteretic model, showing that the proposed algorithms reap the benefits of the parent generalized‐α methods.

Research limitations/implications

Further developments envisaged for this study are the application of the IPC‐ρ method and of EPC‐ρb scheme to partitioned procedures for high‐speed pseudo‐dynamic testing with substructuring.

Practical implications

The implicit IPC‐ρ and the explicit EPC‐ρb methods allow a user to have defined dissipation which reduces the effects of experimental error in the PDT without needing onerous iterations.

Originality/value

The paper proposes novel time‐integration algorithms for pseudo‐dynamic testing. Thanks to a predictor‐corrector form of the generalized‐α method, the proposed schemes maintain a high computational efficiency and accuracy.

Details

Engineering Computations, vol. 22 no. 7
Type: Research Article
ISSN: 0264-4401

Keywords

Article
Publication date: 6 June 2016

Ilaria De Sanctis, Claudia Paciarotti and Oreste Di Giovine

The purpose of this paper is to propose a practical method of performing maintenance in the offshore industry where engineers have to manage problems such as the high cost of…

1154

Abstract

Purpose

The purpose of this paper is to propose a practical method of performing maintenance in the offshore industry where engineers have to manage problems such as the high cost of operations, assuring an high availability of the plant, safety on board and environmental protection. Indeed an efficient maintenance method it is necessary in order to offer methods and criteria to select the rights maintenance strategies keeping in to account the environmental, safety and production constrains.

Design/methodology/approach

The paper provides an overview of reliability centered maintenance (RCM) and reliability, availability, maintainability methodologies and an integration of the two methodologies in a particular case study in the oil and gas sector.

Findings

This paper suggests an improvement of the well-established RCM methodology applicable to industries with high priority level. It is proposed an integration between a reliability analysis and an availability analysis and an application on the offshore oil and gas industry.

Practical implications

The methodology provides an excellent tool that can be utilized in industries, where safety, regulations and the availability of the plant play a fundamental role.

Originality/value

The proposed methodology provides a practical method for selecting the best maintenance strategy considering the equipment redundancy and sparing, the asset’s performance over long time scales, and the system uptime, downtime and slowdowns.

Details

International Journal of Quality & Reliability Management, vol. 33 no. 6
Type: Research Article
ISSN: 0265-671X

Keywords

Article
Publication date: 18 July 2008

Selçuk Perçin

The objective of this paper is to present the employment of the new hierarchical fuzzy technique for order preference by similarity to ideal solution (TOPSIS) approach to evaluate…

3222

Abstract

Purpose

The objective of this paper is to present the employment of the new hierarchical fuzzy technique for order preference by similarity to ideal solution (TOPSIS) approach to evaluate the most suitable business process outsourcing (BPO) decision.

Design/methodology/approach

The paper explains the importance of selection criteria for evaluation of BPO. It then describes briefly the fuzzy hierarchical TOPSIS methodology. There then follows a discussion of the application of the fuzzy hierarchical TOPSIS with some sensitivity analysis to the BPO evaluation problem. Finally, some concluding remarks and perspectives are offered.

Findings

Use of the hierarchical fuzzy TOPSIS methodology offers a number of benefits. It is a more systematic method than the other fuzzy multi‐criteria decision‐making (FMCDM) methods and it is more capable of capturing a human's appraisal of ambiguity when complex multi‐criteria decision‐making problems are considered. The hierarchical fuzzy TOPSIS is superior to the other FMCDM methods, such as fuzzy analytic hierarchy process (FAHP) and classical fuzzy TOPSIS methods, since the hierarchical structure without making pairwise comparisons among criteria, sub‐criteria, and alternatives is considered. Hierarchical fuzzy TOPSIS is an excellent tool to handle qualitative assessments about BPO evaluation problems, and its calculations are faster than FAHP. Also, hierarchical fuzzy TOPSIS makes it possible to take into account the hierarchical structure in the evaluation model. However, there are drawbacks. The classical fuzzy TOPSIS is a highly complex methodology and requires more numerical calculations in assessing the ranking order of the alternatives than the hierarchical fuzzy TOPSIS methodology and hence it increases the effort, thus limiting its applicability to real world problems.

Originality/value

The proposed model will be very useful to managers in the manufacturing sector, as this method makes decision making easier, systematic, efficient and effective.

Details

Information Management & Computer Security, vol. 16 no. 3
Type: Research Article
ISSN: 0968-5227

Keywords

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