Fuzzy AHP-GRA approach to evaluating energy sources: a case of Turkey

2020 ◽  
Vol 14 (1) ◽  
pp. 40-58 ◽  
Author(s):  
Zeki Ayağ ◽  
Funda Samanlioglu
Keyword(s):  
Energy Source ◽  
Fuzzy Ahp ◽  
Evaluation Criteria ◽  
Integrated Approach ◽  
The Other ◽  
Energy Sources ◽  
Public And Private ◽  
Content Type ◽  
Other Hand ◽  
Fuzzy Gra

Purpose Since the demand for energy has dramatically increased in the countries which have fast-growing population and economy, they have faced with a critical problem of how to evaluate a set of potential energy sources (i.e. nuclear, natural gas, bio, geothermal, hydro, wind and solar) and choose the ultimate energy source for their needs. On the other hand, this critical problem turns into a multiple-criteria decision-making (MCDM) in the presence of a set of energy source alternatives and evaluation criteria. In literature, there are many MCDM methods introduced to solve for different kinds of problems. The purpose of this paper is to present an integrated approach for evaluating energy sources using fuzzy AHP and GRA, with a case for Turkey. Design/methodology/approach In this paper, the analytic hierarchy process (AHP) and grey relational analysis (GRA) methods are used because of their advantages for similar problems. On the other hand, due to the fact that the conventional AHP by a nine-point scale and GRA method using a scale with crisp values can be unable to handle to capture the right judgments of a decision-maker(s), to reflect the vagueness and uncertainty on the judgments of a decision-maker, the fuzzy logic is integrated with the AHP and GRA. Findings The contributions of the paper to the literature are given in two dimensions as follows: it presents an integrated approach for complex decision processes with subjective data or vague information; the proposed approach, the fuzzy AHP-GRA method for energy source selection, is unique for the related problem in literature. The results of the proposed model from the case of Turkey will help practitioners and experts of how to apply it to the similar problems in the field of energy management. Research limitations/implications In short, in this paper, an integrated approach is proposed through the fuzzy AHP and the fuzzy GRA methods. As the fuzzy AHP is used to determine the weights of evaluation criteria, the fuzzy GRA is used to rank energy source alternatives. Practical implications In addition, a case study for Turkey is presented to show the applicability of the proposed approach for potential practitioners who are authority in the field of energy in public and private sectors. Social implications On the other hand, the proposed approach, the fuzzy AHP-GRA for energy source selection can also be an intelligent tool for public and private energy companies in Turkey, as well as others in the world. Originality/value On the other hand, in this paper, to the best of the authors’ knowledge, the study contributes to the literature that the first time, they use the fuzzy alpha-cut AHP and GRA in fuzzy environment for energy source evaluation problem.

An integrated supplier selection approach incorporating decision maker’s risk attitude using ANN, AHP and TOPSIS methods

Kybernetes ◽  
2019 ◽  
Vol 49 (9) ◽  
pp. 2263-2284 ◽  
Author(s):  
Chunxia Yu ◽  
Zhiqin Zou ◽  
Yifan Shao ◽  
Fengli Zhang
Keyword(s):  
Supplier Selection ◽  
Selection Process ◽  
Fuzzy Ahp ◽  
Evaluation Criteria ◽  
Risk Attitude ◽  
Integrated Approach ◽  
Fuzzy Topsis ◽  
Ann Model ◽  
Content Type ◽  
Selection Approach

Purpose The purpose of this paper is to develop a novel integrated supplier selection approach incorporating decision maker’s risk attitude using the artificial neural network (ANN), analytic hierarchy process (AHP) and technique for order of preference by similarity to ideal solution (TOPSIS) methods. Design/methodology/approach In the proposed approach, the ANN model is used to classify decision maker’s risk attitude; the fuzzy AHP method is used to determine the relative weights of evaluation criteria; and the fuzzy TOPSIS method is used to evaluate ratings of suppliers. Finally, experiments are conducted to verify the feasibility and efficiency of the proposed integrated approach. Findings Experiments results show that the proposed integrated approach is effective and efficient to help decision makers to select suitable suppliers according to their risk attitudes. Originality/value The aim of this paper is to develop a novel integrated supplier selection approach incorporating decision maker’s risk attitude using the ANN, AHP and TOPSIS methods. The decision maker’s risk attitude toward procurement transaction is originally considered in supplier selection process.

Islamic hedging for pilgrimage funds: case of Indonesia

2019 ◽  
Vol 11 (3) ◽  
pp. 328-341
Author(s):  
Rifki Ismal ◽  
Nurul Izzati Septiana
Keyword(s):  
Exchange Rate ◽  
The Other ◽  
Exchange Rate Risk ◽  
Content Type ◽  
Other Hand ◽  
Rate Risk ◽  
Risk Identify ◽  
Hajj Season ◽  
The Right ◽  
Very High

Purpose The demand for Saudi Arabian real (SAR) is very high in the pilgrimage (hajj) season while the authority, unfortunately, does not hedge the hajj funds. As such, the hajj funds are potentially exposed to exchange rate risk, which can impact the value of hajj funds and generate extra cost to the pilgrims. The purpose of this paper is to conduct simulations of Islamic hedging for pilgrimage funds to: mitigate and minimize exchange rate risk, identify and recommend the ideal time, amount and tenors of Islamic hedging for hajj funds, estimate cost saving by pursuing Islamic hedging and propose technical and general recommendations for the authority. Design/methodology/approach Forward transaction mechanism is adopted to compute Islamic forward between SAR and Rupiah (Indonesian currency) or IDR. Findings – based on simulations, the paper finds that: the longer the Islamic hedging tenors, the better is the result of Islamic hedging, the decreasing of IDR/USD is the right time to hedge the hajj funds and, on the other hand, the IDR/SAR appreciation is not the right time to hedge the hajj funds. Findings Based on simulations, the paper finds that: the longer the Islamic hedging tenors, the better is the result of Islamic hedging, the decreasing of IDR/USD is the right time to hedge the hajj funds and, on the other hand, the IDR/SAR appreciation is not the right time to hedge the hajj funds. Research limitations/implications The research suggests the authority to (and not to) hedge the hajj fund, depending on economic conditions and market indicators. Even though the assessment is for the Indonesian case, other countries maintaining hajj funds might also learn from this paper. Originality/value To the best of author’s knowledge, this is the first paper in Indonesia that attempts to simulate the optimal hedging of hajj funds.

Applied Anthropology in 1860

1942 ◽  
Vol 1 (3) ◽  
pp. 19-32
Author(s):  
H. Barnett
Keyword(s):  
British Columbia ◽  
Church And State ◽  
Applied Anthropology ◽  
The Other ◽  
Public And Private ◽  
Other Hand ◽  
The Subject ◽  
Long Life

Much has been written of William Duncan, "the Apostle of Alaska", who came to the coast of northern British Columbia in 1857 as a missionary to the Tsimshian Indians. Although he deplored it, in the course of his sixty years' residence in this area controversy raged around him as a result of his clashes with church and state, and his work has been the subject of numerous investigations, both public and private. His enemies have called him a tyrant and a ruthless exploiter of the Indians under his control; and there are men still living who find a disproportionate amount of evil in the good that he did, especially during the declining years of his long life. On the other hand, he has had ardent and articulate supporters who have written numerous articles and no less than three books in praise of his self-sacrificing ideals and the soundness of his program for civilizing the Indian.

scholarly journals Emergence of cultural intelligence and global mindset capital: a multilevel model

2016 ◽  
Vol 24 (2) ◽  
pp. 106-122 ◽  
Author(s):  
Jase R. Ramsey ◽  
Amine Abi Aad ◽  
Chuandi Jiang ◽  
Livia Barakat ◽  
Virginia Drummond
Keyword(s):  
Multilevel Model ◽  
Cultural Intelligence ◽  
The Other ◽  
Global Mindset ◽  
Firm Level ◽  
Content Type ◽  
Individual Level ◽  
Other Hand ◽  
Underlying Mechanisms ◽  
Conceptual Study

Purpose The purpose of this paper is to establish under which conditions researchers should use the constructs cultural intelligence (CQ) and global mindset (GM). The authors further seek to understand the process through which these constructs emerge to a higher level and link unit-level knowledge, skills and abilities (KSAs) capital to pertinent firm-level outcomes. Design/methodology/approach This paper is a conceptual study with a multilevel model. Findings This paper differentiates two similar lines of research occurring concordantly on the CQ and GM constructs. Next, the authors develop a multilevel model to better understand the process through which CQ and GM emerge at higher levels and their underlying mechanisms. Finally, this paper adds meaning to the firm-level KSAs by linking firm-level KSAs capital to pertinent firm-level outcomes. Research limitations/implications The conclusion implies that researchers should use CQ when the context is focused on interpersonal outcomes and GM when focused on strategic outcomes. The multilevel model is a useful tool for scholars to select which rubric to use in future studies that have international managers as the subjects. The authors argue that if the scholar is interested in an individual’s ability to craft policy and implement strategy, then GM may be more parsimonious than CQ. On the other hand, if the focus is on leadership, human resources or any other relationship dependent outcome, then CQ will provide a more robust measure. Practical implications For practitioners, this study provides a useful tool for managers to improve individual-level commitment by selecting and training individuals high in CQ. On the other hand, if the desired outcome is firm-level sales or performance, the focus should be on targeting individuals high in GM. Originality/value This is the first theoretical paper to examine how CQ and GM emerge to the firm level and describe when to use each measure.

Little epigraphy

Lampas ◽  
2021 ◽  
Vol 54 (1) ◽  
pp. 119-136
Author(s):  
Robert Pitt
Keyword(s):  
Metal Surfaces ◽  
The Other ◽  
Content Type ◽  
Weights And Measures ◽  
Other Hand ◽  
Large Corpus

Abstract Most well-known inscriptions are monumental texts carved on stone. In this contribution, on the other hand, we focus on small, often informal texts scratched or stamped on rocks, metal surfaces and pottery. To this type of so-called ‘little epigraphy’ belong for instance graffiti, ostraca, weights and measures, curse tablets, etcetera. Although the texts themselves are usually very short, together they constitute a large corpus.

Economic complexity and price competitiveness dependence: empirical evidence using panel models

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Guilherme Magacho ◽  
Rafael Ribeiro ◽  
Igor Rocha
Keyword(s):  
Exchange Rate ◽  
Generalized Method Of Moments ◽  
Output Growth ◽  
The Other ◽  
Content Type ◽  
Price Competitiveness ◽  
Economic Complexity ◽  
Other Hand ◽  
The Impact

Purpose As economies with high economic complexity and productive capabilities may easily adapt their productive structure due to product differentiation and innovation, the central variable of competitiveness for these countries is the product quality, not price. On the other hand, the price can be an important determinant of less complex countries, and hence, real exchange rate (RER) misalignments may have long-term impacts. This paper aims to empirically assess variations in the magnitude of the impact in RER misalignments on output growth subject to countries’ economic complexity. Design/methodology/approach The estimation technique used is the generalized method of moments-System estimator as this method is robust to reverse causality. Heterogeneous regressions using interaction models are undertaken to analyze to what extend promoting economic complexity can reduce price competitiveness dependence and allow countries to grow faster without relying on cost competitiveness. Findings Estimates show that economic complexity (which measures technological and productive capabilities) determines cross-country differences regarding the effects of RER misalignments on countries’ long-term growth rates. The results suggest that exchange rate devaluations may not be effective for countries at the top end of the technological ladder while an overvalued RER may damage the long-term growth rate of countries with low levels of economic complexity. Originality/value This paper contributes to the literature by empirically investigating the impact of RER misalignments in countries with distinct technological and productive capabilities based on the recent developments of countries’ economic complexity analysis. It investigates whether more diversified and complex economies are less sensitive to RER misalignments as they can adapt their production, undertake other tasks, create new products and increase the quality of products they produce. Less complex economies, on the other hand, are less capable of innovating because it demands productive capabilities they do not have, and hence, they are more dependent on their current export basket.

Diskusijas par terminu „mediji” latviešu valodā tā pētīšanas aspektā

2020 ◽  
pp. 349-358
Author(s):  
Dite Liepa ◽  
Ilva Skulte
Keyword(s):  
Mass Media ◽  
Information And Communication Technologies ◽  
Communication Technologies ◽  
The Other ◽  
Public And Private ◽  
State Institutions ◽  
Other Hand ◽  
Information And Communication ◽  
Insight Into

This paper is based on reflections after an emotional discussion on the word and term medijs(i) (‘medium’) in Latvian that broke out during the yearly conference The Word: Aspects of Research at Liepāja University, in November 2019. The aim of this paper is not to blame or replace the broadly spread two-word term plašsaziņas līdzekļi with an anglicism mediji. In Latvia, there are many titles and documents where this term has a permanent and stable place. Such as, for example, The National Electronic Mass Media Council. At the same time, it is time to recognise the use of the word medijs(i) as an entirely accepted synonym of plašsaziņas līdzeklis(ļi) and even as a semantically more broadly usable term in the context of developing information and communication technologies. As this short insight into the research of the word shows, the term is already currently used not only among professionals but also on the level of state institutions, public and private organisations, and companies. On the other hand, especially in the contexts of communication science, arts, and philosophy, the spectrum of meanings of the word medijs(i) in the vocabulary of modern Latvian must be broadened.

Clinical guidelines and patient related outcomes: summary of evidence and recommendations

2019 ◽  
Vol 24 (3) ◽  
pp. 230-238
Author(s):  
Luciana Pereira de Vasconcelos ◽  
Luiza de Oliveira Rodrigues ◽  
Moacyr Roberto Cuce Nobre
Keyword(s):  
Medical Practice ◽  
Positive Impact ◽  
The Other ◽  
Evidence Based ◽  
Content Type ◽  
Good Medical Practice ◽  
Other Hand ◽  
Care Improvement ◽  
Based Medicine

Purpose Good medical practice, evidence-based medicine (EBM) and clinical practice guidelines (CPG) have been recurring subjects in the scientific literature. EBM advocates argue that good medical practice should be guided by evidence-based CPG. On the other hand, critical authors of EBM methodology argue that various interests undermine the quality of evidence and reliability of CPG recommendations. The purpose of this paper is to evaluate patient related outcomes of CPG implementation, in light of EBM critics. Design/methodology/approach The authors opted for a rapid literature review. Findings There are few studies evaluating the effectiveness of CPG in patient-related outcomes. The systematic reviews found are not conclusive, although they suggest a positive impact of CPGs in relevant outcomes. Research limitations/implications This work was not a systematic review of literature, which is its main limitation. On the other hand, arguments from EBM and CPG critics were considered, and thus it can enlighten health institutions to recognize the caveats and to establish policies toward care improvement. Originality/value The paper is the first of its kind to discuss, based on the published literature, next steps toward better health practice, while acknowledging the caveats of this process.

A fuzzy AHP and TOPSIS methodology to evaluate 3PL in a supply chain

2012 ◽  
Vol 7 (3) ◽  
pp. 287-303 ◽  
Author(s):  
Pravin Kumar ◽  
Rajesh K. Singh
Keyword(s):  
Supply Chain ◽  
Service Providers ◽  
Fuzzy Ahp ◽  
Integrated Approach ◽  
Third Party ◽  
Preference Ranking ◽  
Relative Importance ◽  
Content Type ◽  
Logistics Service Providers ◽  
Hierarchy Process

PurposeThe purpose of this paper is to provide an insight into the use of an integrated approach of fuzzy analytical hierarchy process (fuzzy AHP) and TOPSIS in evaluating the performance of global third party logistics service providers for effective supply chain management.Design/methodology/approachIn this study, the integration of fuzzy AHP with TOPSIS is proposed in determining the relative importance (weight) of criteria and then ranking of 3PLs.FindingsFindings show that the logistics cost and service quality are two most important criteria for performance rating of 3PLs. Deciding the relative importance of various criteria for 3PLs evaluation is a complex task. The superiority of one criterion over the other varies from person to person and firm to firm. Therefore, to capture the variability in decision fuzzy extended AHP is very useful tool. Finally, the preference raking of alternatives are found using TOPSIS.Research limitations/implicationsFuzzy AHP is a complex methodology and requires more numerical calculations than the traditional AHP and hence it increases the effort. But in this paper single stage fuzzy AHP is used to simplify the process. Fuzzy AHP is integrated with TOPSIS for preference ranking of 3PL, which provides a good methodology to rank 3PLs.Originality/valueThere is a lack of research in the literature to deal directly with the uncertainty of human decisions in evaluating the relative importance of multiple criteria. Therefore, fuzzy AHP is an appropriate methodology to find the relative importance of the criteria to rank the 3PLs using TOPSIS.

scholarly journals Ethnographies of parliament: culture and uncertainty in shallow democracies

2018 ◽  
Vol 7 (1) ◽  
pp. 16-30 ◽  
Author(s):  
Emma Crewe
Keyword(s):  
Political Institutions ◽  
Design Methodology ◽  
Cultural Practices ◽  
Political Process ◽  
The Other ◽  
National Parliaments ◽  
Public And Private ◽  
Content Type ◽  
Working Out ◽  
Gain Access

Purpose The purpose of this paper is to consider the challenges, advantages and limits of ethnographical approaches to the study of parliament. Challenges in the study of political institutions emerge because they can be fast-changing, difficult to gain access to, have starkly contrasting public and private faces and, in the case of national parliaments, are intimately connected to rest of the nation. Design/methodology/approach Ethnography usually tends to be difficult to plan in advance, but especially so when parliament is the focus. Findings Research in parliament requires clear questions but an emergent approach for answering them – working out your assumptions, deciding on the most appropriate methods depending on what wish to find out, and continually reviewing progress. Its great strengths are flexibility, ability to encompass wider historical and cultural practices into the study, getting under the surface and achieving philosophical rigour. Rigour is partly achieved through reflexivity. Research limitations/implications One implication of this is that not only will each study of parliament be different, because each is embedded in different histories, cultures, and politics, but the study of the same parliament will contain variations if a team is involved. Originality/value Ethnographical research is a social and political process of relating; interpreting texts, events and conversations; and representing the “other” as seen by observers.

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