Browsing by Author "Mustafa Ergun"

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    Analysing Mobile Banking Quality Factors from Neutrosophic Set Perspective: A Case of Study of Turkey
    (Journal of Economics, Finance and Accounting, 2017) Basil Oluoch Okoth; Serpil Altinirmak; Mustafa Ergun; Caglar Karamasa
    Purpose - Mobile banking, also known as m-banking, provides low cost, innovative and easily accessible services to customers with technological developments as compared to retail banking. In this context, m-banking quality factors of the banks are considered to be important issues for customers. The aim of this study is to analyze the m-banking quality factors and to rank banks offering this service in Turkey under incomplete, inconsistent and indeterminate information. Methodology - First linguistic expressions of experts are converted to crisp values via approximation approach proposed by Chen and Hwang. Then, the Single Valued Neutrosophic Set (SVNS) based entropy, which deals with incomplete, indeterminate and inconsistent environment better than fuzzy set, is used to rank the banks providing m-banking services in Turkey. Findings- Findings - show that the Denizbank has the best performance in m-banking applications followed by TEB and ING. Additionally, in terms of entropy weights, response time was found to be the most important criterion followed by accessibility, accuracy and trust. Conclusion- Banks could consider the criteria of response time, accessibility, accuracy and trust for improving the performance in mbanking services implementation.
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    Rating Pressure Factors Affecting Logistics Systems during the Pandemic and the Ideal Logistic Decision Selection under the Pythagorean Fuzzy Environment
    (Emerald Publishing, 2023-03-17) Basil Oluoch Okoth; Arunodaya Raj Mishra; Mustafa Ergun; Selçuk Korucuk; Ahmet Aytekin; Caglar Karamasa
    Due to the current pandemic, the importance of logistics functions and decisions is well understood both at the level of companies and users. Logistics systems and related decisions are of vital importance in making supply chains effective, efficient and without disruption. Logistic pressure factors may emerge at different points along the logistics process, and given the role of logistics decisions as one of the important indicators of competitiveness, the determination of the logistics pressures that are likely to increase the costs of business, and their causative factors are a vital aspect of the logistics decision-making process. The study aims to provide assistance in the selection of the most ideal logistics decision by ranking the pressure factors affecting the logistics system, especially during the pandemic period for logistics enterprises operating in Ordu and Giresun provinces and which have a corporate identity.