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Öğe Additive manufacturing process selection for automotive industry using Pythagorean fuzzy CRITIC EDAS(Public Library of Science, 2023) Menekşe, Akın; Ertemel, Adnan Veysel; Akdağ Camgöz, Hatice; Görener, AliFor many different types of businesses, additive manufacturing has great potential for new product and process development in many different types of businesses including automotive industry. On the other hand, there are a variety of additive manufacturing alternatives available today, each with its own unique characteristics, and selecting the most suitable one has become a necessity for relevant bodies. The evaluation of additive manufacturing alternatives can be viewed as an uncertain multi-criteria decision-making (MCDM) problem due to the potential number of criteria and candidates as well as the inherent subjectivity of various decision-experts engaging in the process. Pythagorean fuzzy sets are an extension of intuitionistic fuzzy sets that are effective in handling ambiguity and uncertainty in decision-making. This study offers an integrated fuzzy MCDM approach based on Pythagorean fuzzy sets for assessing additive manufacturing alternatives for the automotive industry. Objective significance levels of criteria are determined using the Criteria Importance Through Inter-criteria Correlation (CRITIC) technique, and additive manufacturing alternatives are prioritized using the Evaluation based on Distance from Average Solution (EDAS) method. A sensitivity analysis is performed to examine the variations against varying criterion and decision-maker weights. Moreover, a comparative analysis is conducted to validate the acquired findings.Öğe Akıllı telefon kullanıcılarının ücretli uygulama satın alma niyetini etkileyen faktörler(İstanbul Ticaret Üniversitesi, 2018) Ertemel, Adnan Veysel; Çudin, DoğukanBu çalışmayla akıllı telefon kullanıcılarının ücretli mobil uygulama satın alma niyetini tam olarak hangi faktörlerin etkilediği araştırılmıştır. Çalışmada özellikle kullanıcıların ücretli veya ücretsiz mobil uygulama kullandıkça şekillenen değer algılarının alt bileşenlerinden hangilerinin satın alma niyetinde daha belirleyici olduğu araştırılmıştır. Çalışmada kullanılan kuramsal çerçeve, beklenti doğrulama modeli ve algılanan değer modelidir. Beklenti doğrulama modeli, tüketicinin yaptığı satın alım sonrası duyacağı memnuniyetin ve yeniden satın alma ihtimalinin beklentileri ve ürün veya hizmetten algılanan değer ile ilişkili olduğunu belirten beklenti doğrulama teorisinin uygulanışıdır (Oliver, 1977). Algılanan değer kavramının alt bileşenleri kalite/performans değeri, parasal değer, duygusal/hissel değer ve sosyal değer şeklindedir (Zeithaml 1988). Çalışma sonunda akıllı telefon kullanıcılarının kullandıkları uygulamalardan duydukları memnuniyetin ve bilinçaltlarında verdikleri psikolojik onayın satın alma niyeti üzerinde etkisinin olduğu görülmüştür. Ayrıca uygulama için olumlu yorumların oluşunun satın alma kararını doğrudan etkilemediği görülmüştür. Son olarak uygulamanın yerel yazılımcı tarafından hazırlanmış olmasının Türk kullanıcıları ücret ödeme konusunda tek başına kıstas olarak motive edemeyebileceği tespit edilmiştir.Öğe Analyzing the effect of one-stop shopping on purchase intention in E-Commerce(IGI Global, 2022) Ertemel, Adnan Veysel; Civelek, Mustafa EmreBeginning with the advent of the internet in the mid-nineties, e-commerce started to be a viable alternative way of shopping for consumers worldwide. Without doubt, it could be said that e-commerce has become indispensable in our lives. The recent global pandemic has increased e-commerce adoption by elderly people even further as the sole way of buying their needs. This paper studies the direct and indirect effects of product portfolio in B2C e-commerce websites on customers’ purchase intention through perceived value and brand loyalty. SEM method was used to test the hypotheses. The results of the study indicate that product portfolio does not have a direct effect on purchase intention. However, it does have an indirect influence on purchase intention through perceived value and brand loyalty. As a result, this study validates the extant literature by confirming the mediating role of brand loyalty between the relationship between perceived value and purchase intention. The findings obtained are believed to provide a significant contribution to the related e-commerce literature.Öğe Consumer insight as competitive advantage using big data and analytics(İstanbul Ticaret Üniversitesi, 2015) Ertemel, Adnan VeyselDigital revolution serves as a competitive advantage to businesses that are able to analyze consumer behavior in order to gain insights for their strategic advantage. After the advent of Internet, the past two decades witnessed generation of vast amount of business data. The amount of data is so huge that traditional database management system approaches falls short of managing and analyzing this data. This paper explores the characteristics of this phenomenon called Big Data together with Analytics as a tool for marketers to gain insights about consumer behavior and hence provide competitive advantage to the businesses. It also discusses some best practices as case studies.Öğe Dijital ekonomide teknoloji bağımlılığı ve çözüm önerileri(Türkiye Yeşilay Cemiyeti, 2018) Ertemel, Adnan Veysel; Aydın, GökhanBu çalışmada dünya genelinde hızla benimsenen yeni teknolojilerinin yol açtığı teknoloji bağımlılığı ele alınmıştır. Çalışmada teknoloji bağımlılığının, dijital ekosistemin üzerine kurulduğu dikkat ekonomisinin doğal bir sonucu olduğu ileri sürülmektedir. Literatürde internet bağımlılığı, sosyal medya, oyun, cep telefonu gibi birçok uygulama alt başlığında incelenen söz konusu bağımlılık çeşidi, bu çalışmada en genel ifadesiyle teknoloji bağımlılığı olarak isimlendirilmiştir. Dijital platform sahiplerinin, son yıllarda insan beyninin işleyişi ve davranışlarıyla ilgili ulaşılan bulgulardan hareketle karşı koyulması güç biçimde alışkanlık yapan deneyimler (uygulamalar, sistemler, oyunlar vd.) tasarlaması, ekran başında geçirilen sürenin gittikçe artmasının önemli bir nedeni olarak görülmektedir. Bu durumun kontrol altına alınabilmesi için dünyadaki güncel başarı örnekleri incelenerek bütünleşik bir bakış açısıyla çözüm önerileri geliştirilmiştir. Teknoloji bağımlılığıyla mücadelede, sırasıyla, bireysel olarak çocukların, ailenin, kurumların (okul vd. eğitim kurumları) ve nihayet toplum ve politika belirleyicilerin yapabilecekleri ilgili başlıklar altında gruplanarak incelenmiştir.Öğe Dijitalleşen dünyada tüketici davranışları açısından mobil teknoloji bağımlılığı: üniversite öğrencileri üzerine nitel bir araştırma(Yıldız Teknik Üniversitesi, 2018) Ertemel, Adnan Veysel; Eroğlu Pektaş, Güzide ÖncüGünümüzde teknolojik alandaki hızlı gelişmeler insanların yaşam biçimini köklü ve kalıcı biçimde değiştirmiştir. Söz konusu değişimin hem tüketici hem de işletme açısından birçok kolaylığı da beraberinde getirmiştir. Bilgisayar ve akıllı telefonların hayatımıza girmesi ile bu değişim daha da hızlanmış, beklenmedik şekilde toplumdaki aile ilişkilerini, sosyal hayat alışkanlıklarını, alışveriş biçimlerini, gazete okuma davranışlarını ve hatta bakkaldan ekmek alma şeklini bile değiştirmiştir. Bu değişimin sosyal ve psikolojik birçok yönü ve etkisi bulunmaktadır. Bilgisayar ve akıllı telefon kullanımı konusunda toplumun her kesimi aynı düzeyde eğilim göstermemektedir. Aşırı kullanımın getirdiği bağımlılık olarak adlandırılan farklı psikolojik davranışlar gözlenmektedir. Bu çalışmada kalitatif tekniklerden olan derinlemesine mülakat yöntemi seçilmiştir. Belirlenen yöntem üniversite öğrencilerinden seçilen üç odak grup üzerinde araştırılmıştır. Ayrıca katılımcılara bağımlılık seviyelerini ölçen sorular yöneltilmiş ve aldıkları haz-suçluluk duyguları sorulmuştur. Çalışmanın ilk aşamasında kalitatif teknikten gelen sonuçlar doğrultusunda ikinci aşamadaki kantitatif çalışma ile tamamlanması ve daha geniş örneklem kütlesi ile sorunsalın farklı boyutlarına ulaşılması amaçlanmıştır.Öğe A distribution network design model for additive manufacturing(Springer, 2022) Ertemel, Adnan Veysel; Ertemel, Sinan; Çoktuğ, Cemil Can; Erk, Ali Can; Görener, AliIt is without a doubt that Additive Manufacturing (AM) is to radically change the way manufacturing processes take place. However, the vast majority of the extant literature deals with rather futuristic scenarios on the subject. This paper adopts a more realistic, short-term perspective by stating that new supply chain models have to be designed in a way adopting AM, but they should still incorporate Conventional Manufacturing (CM) as the de-facto means at least for a certain period. To this end, we formulate a new supply chain model where manufacturers are allowed to forward their orders to 3D shops. With some mild assumptions, our optimization model suggests that substantial cost savings could be attained when AM is adopted.Öğe The Effect Of E-Commerce Web Site Security On Purchase Intention(Beykoz Üniversitesi, 2018) Ertemel, Adnan Veysel; Civelek, Mustafa EmreThis study investigates the effect of website security, as a key dimension of e-service quality, on purchase intention, perceived value and brand loyalty in business-to-consumer (B2C) e-commerce context. Hypotheses were developed based on previous literature. Afterwards, an empirical research was conducted with the data collected from 464 e-commerce customer to verify the hypotheses. Structured equation modeling was used to test the hypotheses. Having analyzed the results, it is found out that website security in e-commerce affects customer purchase intention directly. Furthermore, website security indirectly affects purchase intention through brand loyalty and perceived value. The study has important managerial implications stressing the importance of customer perception regarding security level of B2C e-commerce web sites.Öğe The effect of personality traits on credit score using myers-briggs yype indicator (MBTI) personality types(Springer, 2021) Ertemel, Adnan Veysel; Çaylak,GökhanCredit scoring plays an increasingly important role in our lives. This is true even in various nonfinancial contexts including but not limited to marketing and human resources. This study adopts the notion that one’s credit score could be affected by his/her personal characteristics. Therefore, this study investigates the relationship between personality traits and credit score. The study is significant in that, contrary to the extant literature on the subject that uses the well-known Big Five model, it uses the Myers-Briggs Type Indicator (MBTI), which is shorter and more practical for commercial uses. A quantitative study was carried out and a survey was administered on 181 valid respondents. The results demonstrate that sensing and judging dimensions positively correlate with the credit score. As Conscientiousness dimension in Big Five overlaps with MBTI sensing and judging dimensions, and the findings partly conform to the former studies that use the Big Five model. The results obtained have important managerial implications.Öğe The effect of product portfolio on purchase intention in e-commerce web sites(İstanbul Teknik Üniversitesi & Bahçeşehir Üniversitesi, 2018) Civelek, Mustafa Emre; Ertemel, Adnan VeyselE-commerce has globally become commonplace in the recent years. In the 21st world marketing envirement, e-commerce deserves special attention when studying brands and their marketing activities. This study investigates the direct and indirect effects of product portfolio, that is, the range and depth of products, found in B2C e-commerce web sites, on customers’ purchase intention through perceived value and loyalty to the web sites. In conducting the research, structural equation modeling method was used to test the hypotheses. It’s found that product portfolio in e-commerce web sites doesn’t have direct effect on purchase intention. However, product portfolio does influence purchase intention indirectly through perceived value and customer loyalty. Validating the previous studies, this study confirms the mediating role of customer loyalty within the relationship between perceived value and purchase intention. Thus the effect is revealed in the context of e-commerce. Hence, the findings in this study have significant contribution to the related e-commerce literature.Öğe Enhancement of Micro Small Businesses in The Gambia through Digitalization: Investigating youth Entrepreneurs Perception, Use and Inhibitor of E-commerce Technology(İstanbul Ticaret Üniversitesi, 2021) Awe, Ya Neneh; Ertemel, Adnan VeyselSMEs and e-commerce have been widely researched on due to their contribution in many aspects of development; however research in Africa is limited thus this paper aims to explore the factors that influence youth entrepreneurs in The Gambia to adopt this technology and how they perceive prospective benefits when it is adopted. Another aim is to assess their level of ecommerce adoption and to find out the factors that hinder the adoption process. A research model was developed based on Technology Acceptance Model (TAM), Theory of Planned Behavior (TPB) and Diffusion of Innovation Theory (DIT). The study objectives were achieved through a cross-sectional survey design and primary data was collected through self-administered online questionnaire from 153 youth entrepreneurs and IBM SPSS 22 was used to analyze the data. The results indicate that out of the 7 proposed independent variables, perceive benefits and perceive barriers have a positive correlation to adoption, perceive behavioral control was also found to positively influence ecommerce adoption while attitude, perceive usefulness, relative advantage and compatibility were not found to be significant. Finally the adoption level of ecommerce by the youth entrepreneurs was found to be moderate.Öğe An exploratory analysis of online shopping behavior in Turkey(İstanbul Ticaret Üniversitesi, 2016) Ertemel, Adnan Veysel; Çelik, BuğraAbstract: Alongside the technologic developments, transformation in user behavior and business models has been observed. New areas and models are emerged in a lot of grounds like the communication of people or daily activities. So a new face put for shopping behavior by the e-commerce, which is one of the novelties. This study tries to research online shopping behavior in Turkey. With a quantitative research, device usage, the reasons behind to shop or not to shop online, online shopping category and e-commerce site preferences, payment methods, international e-commerce and online marketplace usage is investigated. As implications of the research, “saving time“ is found to be the foremost reason for shopping online in Turkey and “travel and bookings” category is found as the most shopped category among the results of the survey.Öğe The Impact Of Zero Moment Of Truth On Consumer Buying Decision: An Exploratory Research In Turkey(International Center of Social Sciences and Education Research, 2015) Ertemel, Adnan Veysel; Peyk, PeyventAs a result of technological improvements, consumer purchase decision process deviates from its traditional behaviors. Considering the traditional consumer behavior, process of product purchase decision begins with being exposed to a stimulus, to various phases, finally to decision phase. Technological changes enable consumers to have ready access to available rich information about all types of products immediately after being exposed to a stimulus. At this stage, a new concept Zero Moment of Truth (ZMOT) plays a crucial role that accompanies more information seeking activity prior to going to the store. In this study, theoretical and existing academic literature investigated with a prior similar research conducted in US and Asia to analyze the results across different demographic segments, and to compare ZMOT against other MOTs.Öğe Implications Of Blockchain Technology On Marketing(İstanbul Ticaret Üniversitesi, 2018) Ertemel, Adnan VeyselTrust issue gradually becomes more of a concern in the 21st century business environment. Recent research sheds light on the erosion of trust to brands on a global basis. Traditionally, trusted third parties take place to ensure the trust needed for business transactions to take place. Digitization, advances in peer-to-peer networks and cryptographic technologies have advanced to such a point that exchange of currency, as in the case of Bitcoin, and even value as in the case of property rights, securities, ownership etc. can be done over Internet with Blockchain technology serving as a trust layer baked into the protocol. Blockchain technology serves as the missing trust layer in the evolution of Internet. This paper explores implications of Blockchain technology on marketing discipline from various aspects. The paper pinpoints the key strategies marketers need to adopt to survive in the rapidly evolving business landscape. Finally, conclusions are drawn regarding future direction of marketing as affected by those technological advances.Öğe The importance of unconscious mind for consumer engagement in the digital age: a model proposal(Pazarlama ve Pazarlama Araştırmaları Derneği, 2017) Ertemel, Adnan VeyselWe witness a new kind of reality in terms of marketing environment and consumer environment in 21st century, characterized as information age. There is an ever-increasing competition in marketing environment resulting in brands having difficulty differentiating themselves. On the other hand, social media and Internet of things revolutions cause an explosion in terms of information produced. Conversely, attention span of consumers is constant which makes it increasingly difficult for consumers to pay attention to a to information at hand. This phenomenon, known as the “attention economy” (Davenport, 2001), acknowledges consumer attention as the most scarce and valuable resource of the information age. In recent years, new kind of techniques, like storytelling, user experience and gamification are used more frequently by the brands. The common characteristic of these approaches is that they all appeal to the unconscious mind known as the right brain and eliminate the need for the consumers to pay active attention while interacting with products and brands. Looking from marketing point of view, this paper aims at conceptualizing those techniques coming from different fields and developing a methodology laying out the course for using them adopting a comprehensive perspective.Öğe Is Youtube a search engine or a social network? Analyzing evaluative inconsistencies(Adem Anbar, 2021) Ertemel, Adnan Veysel; Ammoura, AhmedAs broadband internet speed increases worldwide, video consumption habits gain momentum. YouTube is by far the most dominant video platform on the Internet. Apart from its social networking site characteristics, YouTube is also known as the second most visited search engine in the world. This paper studies YouTube from marketing perspective. By looking from the categorization theory, evaluative inconsistencies associated with the YouTube platform are investigated. YouTube platform is unique in that it has hybrid product characteristics encompassing both search engine and social networking site features. In the light of the previous literature on category knowledge, devaluation effect, integrated evaluation and bivariate evaluation space (BES) theories, structural equation modeling (SEM) technique was used to examine the evaluative inconsistencies between the two categories of YouTube. Findings showed positive correlation between the two categories, so basically users tend to eliminate the inconsistencies by formulating a general attitude towards both categories. This article makes important contributions to the existing literature by testing such a hybrid model in categorization research. Moreover, the paper has significant managerial implications for the marketers who want to understand the underlying characteristics of different users using a dominant platform like YouTube.Öğe Katılım bankası mobil uygulamasında müşteri deneyiminin incelenmesi(İstanbul Ticaret Üniversitesi, 2021) Yavuz, Alpaslan; Ertemel, Adnan VeyselDijitalleşen dünyada Sektörde pazar payını artırmak, rekabet edebilir olmak ve sadık müşteriler oluşturmak isteyen bankalar müşteri deneyimi, müşteri sadakati konularında çalışmalar yapmışlardır. Bu araştırmada Türkiye’de faaliyet gösteren katılım bankalarının mobil bankacılık kullanan müşterilerinin müşteri deneyimini ortaya koymak amacıyla hazırlanmıştır. Müşteriler ile yapılan anket çalışması sonucunda elde edilen veriler ile istatiksel analizlerle yapılarak müşteri deneyimini etkileyen faktörler açıklanmaya çalışılmıştır.Öğe Lojistik Sektöründe Endüstri 4.0 Uygulamalarının Operasyonel Verimliliğe Etkisi(BMIJ, 2020) Ertemel, Adnan Veysel; Alkış, G.; Pirtini, S.Endüstri 4.0 tüm dünyada hemen her sektör için yıkıcı etkisi olan bir kavramdır. Akıllı üretim sistemlerinin değer zincirinin her aşamasında yıkıcı etki yapmasının öngörüldüğü Endüstri 4.0 vizyonunda lojistik en fazla etkilenecek sektörlerden biri olarak öne çıkmaktadır. Alan yazında Endüstri 4.0 uygulamalarının lojistik sektörüne etkisi incelenmekle birlikte operasyonel verimlilik üzerine etkisi üzerine yeterince çalışma bulunmamaktadır. Bu araştırmada Endüstri 4.0 uygulamalarının lojistik sektöründe operasyonel verimliliğe etkisi incelenmektir. Araştırmada operasyonel verimlilik; taşıma yönetimi, depo ve envanter yönetimi, sipariş yönetimi, müşteri hizmetleri ve maliyet verimliliği yönlerinden ele alınarak ayrıntılı bir biçimde açıklanmıştır. Veriler Endüstri 4.0’ı etkin olarak kullanan lojistik firmalarının bu konuda yetkin üst ve orta düzey yöneticileri ile derinlemesine mülakat, gözlem ve doküman incelemeleri yapılarak toplanmıştır. Verilerin güvenilirliğini sağlamak için Kappa Analizi kullanılmıştır. Veri çözümlemesi yaparken, açık, eksenel ve seçici kodlamalar yapılarak gömülü teori oluşturulmuştur.Öğe Managerial Implications Of The Relationship Between Customer Care And Purchase Intention In Online Shopping(Bursa Teknik Üniversitesi, 2019) Ertemel, Adnan Veysel; Civelek, Mustafa EmreThis paper studies customer care as an important factor that affects the performance of B2C e-commerce websites. A survey was conducted to 464 Turkish B2C website customers. Analysis method of this study is partial least square structural equation modeling (PLS-SEM). Specifically, customer care in B2C e-commerce web sites is found to have direct effect on perceived value and indirect effect on purchase intention via perceived value and brand loyalty. Besides relationship between customer care and purchase intention was found as insignificant. The most important contribution of this research is the unveiling of the indirect relationship between customer care and purchase intention. This study also offers some important manageral suggestions for B2C web sites.Öğe A Marketing Approach to a Psychological Problem: Problematic Smartphone Use on Adolescents(MDPI, 2020) Ertemel, Adnan Veysel; Ari, ElaBackground: Smartphones have become an indispensable part of the daily lives of adolescents in the 21st century, which is characterized by a highly digitized modern world. Besides their many advantages, smartphones might pave the way to compulsive usage and addictive experiences. To remedy this problem, this study proposes an authentic approach which integrates consumer behavior theories and techniques such as unhook and gamification. An education program has been designed based on these approaches to decrease the problematic smartphone use. Method: The participants of the education program consisted of 305 students (48.2% girls and 51.8% boys) with a mean age of 14.57 (SD = 0.74). The Demographic Form and Smartphone Addiction Scale for Adolescents (SASA) were conducted before the education program and three weeks after the education. Results: The results of the paired sample t-test analysis before and after the education program revealed that the SASA total scores decreased significantly (p < 0.01). There are significant di erences in terms of gender, mothers’ education and class levels. Conclusion: This research emphasizes the role of an interdisciplinary approach to the addiction problem. The content used in the education program includes strategies that originally aimed at increasing consumption. The e ectiveness of the program can be enhanced further in the future along with self-regulatory additions.
