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Öğe Appearance vanity or achievement vanity: which better predicts young consumers' decision-making orientations?(Emerald Group Publishing Ltd, 2024) Cengiz, Hakan; Arpa, Rabiya Gokce; Sezgin, Kubra NurPurposeThis study aims to operationalize consumer decision-making styles as higher-order constructs and investigates the influence of two distinct subdimensions of consumer vanity - namely, appearance vanity and achievement vanity - on consumer decision-making orientations (CDMO).Design/methodology/approachUsing data from an online survey of 319 young adults, the authors construct a higher-order structural model capturing the following three orientations: social/conspicuous, utilitarian and undesirable. The partial least squares structural equation modeling approach was used to test the validity of the higher-order structural model and the hypothesized relationships.FindingsResults, confirming the higher-order structure of consumer decision-making styles, highlight the distinctive impacts of the vanity dimensions on different CDMOs. Specifically, appearance vanity predominantly affects social and undesirable orientations, and achievement vanity influences utilitarian orientation.Originality/valueWhile several theoretical classifications of consumer decision-making styles have been proposed in the past, none of the earlier studies leveraged those classifications as higher-order models. Addressing this literature gap, this study provides empirical evidence associating CDMOs with a specific consumer trait - vanity - thereby validating the higher-order nature of consumer decision-making styles.Öğe Cep telefonu kullanıcılarının tüketici tecrübelerinin değerlendirilmesi: online tüketici yorumları üzerine netnografik bir inceleme(2016) Cengiz, Hakan; Başaran, SinanBu çalışmada cep telefonu kullanıcılarının tecrübelerine yönelik online yorumları nitel bir araştırma yöntemi olan netnografi yöntemini benimseyerek incelemek amaçlanmıştır. Çalışmada tüketicilerin tecrübelerini paylaşmalarında online alışveriş sitelerindeki yorum platformlarını ne şekilde kullandıklarına odaklanılmıştır. Bu doğrultuda, araştırmacılar üç farklı alışveriş sitesinde yer alan tüketici tecrübelerini yansıtan değerlendirmeleri takip etmişler ve 2500 yorumu okuyarak arşivlemişlerdir. Bu yorumlardan tüketicilerin ürün ve hizmet tecrübelerini içeren ve araştırma sorusuyla alakalı olan 337 yorum seçilmiştir. Verilerin analizi sonucunda beş temel kategoriye ulaşılmıştır: (1) yardımlaşma ve bilgi paylaşımı, (2) gösterişçi tüketim davranışı, (3) öneri ve tavsiyede bulunma, (4) marka ve modelleri karşılaştırma ve (5) fiziksel temas. Araştırma sonuçları online ortamlarda tüketici tecrübesinin anlaşılmasına katkı sağlamakta ve online yorumlama platformlarının netnografik araştırmadaki potansiyel önemini vurgulamaktadır.Öğe Death-Related Status Consumption: Scale Development and Validation(Sage Publications Inc, 2023) Cengiz, Hakan; Torlak, OmerAlthough it has been widely discussed in the literature, no scale has yet been developed to measure the consumption aspect of death. This study aims to develop a domain-specific death-related status consumption (DRSC) scale to bridge this gap in the field. Results reveal the following three dimensions of the scale: conspicuousness, planning, and showing respect. In four studies, which collate the views of 1,302 participants, both students and adults, the DRSC demonstrates internal consistency and validity across cultures (Turkey, the U.S., and culturally diverse sample). The importance of such a scale for the field is discussed.Öğe Development of a Medical Module For Disaster Information Systems(Ios Press, 2014) Calik, Elif; Atilla, Ridvan; Kaya, Hilal; Aribas, Aliriza; Cengiz, Hakan; Dicle, OguzThis study aims to improve a medical module which provides a real time medical information flow about pre-hospital processes that gives health care in disasters; transferring, storing and processing the records that are in electronic media and over internet as a part of disaster information systems. In this study which is handled within the frame of providing information flow among professionals in a disaster case, to supply the coordination of healthcare team and transferring complete information to specified people at real time, Microsoft Access database and SQL query language were used to inform database applications. System was prepared on Microsoft .Net platform using C# language. Disaster information system-medical module was designed to be used in disaster area, field hospital, nearby hospitals, temporary inhabiting areas like tent city, vehicles that are used for dispatch, and providing information flow between medical officials and data centres. For fast recording of the disaster victim data, accessing to database which was used by health care professionals was provided (or granted) among analysing process steps and creating minimal datasets. Database fields were created in the manner of giving opportunity to enter new data and search old data which is recorded before disaster. Web application which provides access such as data entry to the database and searching towards the designed interfaces according to the login credentials access level. In this study, homepage and users interfaces which were built on database in consequence of system analyses were provided with www.afmedinfo.com web site to the user access. With this study, a recommendation was made about how to use disaster-based information systems in the field of health. Awareness has been developed about the fact that disaster information system should not be perceived only as an early warning system. Contents and the differences of the health care practices of disaster information systems were revealed. A web application was developed supplying a link between the user and the database to make date entry and data query practices by the help of the developed interfaces.Öğe The effect of perceived scarcity on impulse-buying tendencies in a fast fashion context: A mediating and multigroup analysis(Emerald Group Publishing Ltd, 2024) Cengiz, Hakan; Senel, MehmetPurposeThis study investigates the relationships between perceived scarcity, fear of missing out (FOMO) and impulse-buying tendencies (IBT) in the fast fashion context in both scarcity and non-scarcity conditions. Additionally, this study examines whether these relationships vary depending on the type of scarcity messages: limited-quantity scarcity (LQS) and limited-time scarcity (LTS).Design/methodology/approachWe used written scenarios, and each participant was assigned to one of the experimental or control groups for LQS and LTS conditions. Using a structural modeling approach, we tested the conceptual model and analyzed the data through SmartPLS version 4. We conducted mediating and multigroup (MGA) analysis.FindingsWe found that perceived scarcity directly increases IBT and that FOMO partially mediates this relationship across all samples. The MGA findings also revealed that hypothesized relationships were not significantly different across LQS and LTS groups, suggesting that the effect of scarcity messages may be context specific.Originality/valuePrevious studies have yielded mixed results on the effects of different scarcity messages on consumer behavior. This study contributes to the literature by providing evidence of the direct relationship between perceived scarcity, FOMO and impulse buying in the fast fashion context. The study supports the idea that the effect of different types of scarcity messages is context specific, suggesting that the relationship between scarcity perceptions and consumer behavior may vary depending on the product category and cultural context.Öğe Effect of the need for popularity on purchase decision involvement and impulse-buying behavior concerning fashion clothing(Taylor & Francis Ltd, 2017) Cengiz, HakanConsumer researchers specifically interested in popularity have generally focused on either product popularity or brand popularity but have been largely silent on the subject of the need for popularity. Although a large number of studies have examined reference group influence on consumer behaviors, no research has yet evaluated the need for popularity in the consumption context. With this aim, the main purpose of this study is to investigate the effect of the need for popularity on purchase decisions and impulse-buying behavior concerning fashion clothing. Accordingly, this study explores the relationships between fashion clothing purchase decision involvement, need for popularity and fashion-oriented impulse buying. Using a sample of Amazon Mechanical Turk (MTurk) participants (n = 333), this study finds that (1) the need for popularity positively influences purchase decision involvement and impulse-buying behavior concerning fashion clothing and (2) the involvement in purchase decisions concerning fashion clothing positively influences fashionoriented impulse buying. This research advances the understanding of the need for popularity in the context of fashion consumption. Implications and limitations for future research are discussed and consumer researchers are called to pay attention to this promising research area.Öğe How does body appreciation affect maladaptive consumption through fashion clothing involvement? A multi-group analysis of gender(Emerald Group Publishing Ltd, 2024) Cengiz, Hakan; Barin, AhmetPurposeThe main purpose of this study is to investigate the mediating role of fashion clothing involvement in the relationship between body appreciation and maladaptive consumption, namely fashion-oriented impulse and compulsive buying. The second purpose of this study is to investigate if this mediation varies based on gender.Design/methodology/approachA quantitative approach was adopted in this study, and data were collected via Amazon Mechanical Turk from 255 consumers located in the U.S. aged 18 and above. The collected data were analyzed using the least partial square and multi-group analysis of the structural equation model.FindingsThe results revealed that the relationship between body appreciation and maladaptive consumption is established through fashion clothing involvement. Results also showed that the mediating role of fashion clothing involvement in this relationship does not significantly differ across gender.Originality/valueThis study reports the fully mediating role of fashion clothing involvement in the relationship between body appreciation and maladaptive consumption, highlighting the importance of studying positive body image in the context of fashion and consumption. While previous research findings indicate the negative consequences of negative body image, this research reveals that positive body image can also lead to negative outcomes through possible mediators. Furthermore, this study finds fashion clothing involvement does not differ in mediating the relationship between body appreciation and maladaptive consumption behavior based on gender.Öğe Investigating the Demographics and Behavioural Characteristics Associated with Voluntary Simplicity Lifestyles in a Developed and a Developing Country: A Comparison between US and Turkish Simplifiers(Sage Publications Ltd, 2021) Cengiz, Hakan; Torlak, OmerThis study aims to compare the demographics and behavioural characteristics of consumers who adopt voluntary simplicity as a daily lifestyle process, focusing on one developed country and one developing country. Data were accordingly collected from 589 US and Turkish consumers who define themselves as voluntary simplifiers. Although other studies found that voluntary simplifiers have same demographic characteristics, our results indicate that Turkish and US simplifiers do not vary statistically in terms of demographic variables such as income class, marital status, number of children and gender but do vary statistically in terms of education, age and working hours. They also vary in terms of the deliberate shortening of working hours. The results reveal that several behavioural and demographic characteristics of consumers who adopt the same lifestyle philosophy may vary based on their culture and the conditions of their country. Findings in the discussion section are aligned with previous studies in the literature and with socioeconomic and demographic indicators of the two countries.Öğe Linking gamers’ competitive spirit and in-game impulse purchase: The need for popularity as a mediator and social competence as a moderator(Elsevier BV, 2025-02) Cengiz, Hakan; Pouyan, Arezoo; Azdemir, HasanThis study investigated the effects of competitive attitudes on in-game impulse purchase behaviors, focusing on the mediating role of the need for popularity and the moderating effect of social competence. Data collected from 234 participants via broadcasters on Discord and Twitch platforms was analyzed using Partial Least Squares Structural Equation Modeling (PLS-SEM). The findings confirm that the need for popularity fully mediates the relationship between competitive attitudes and in-game impulse purchases. Moreover, social competence was found to moderate this relationship negatively, indicating that individuals with lower social competence are more influenced by their need for popularity when making in-game impulse purchases. These insights highlight the significant impact of social dynamics and individual psychological traits on consumer behavior in gaming environments. Furthermore, these results emphasize the ethical imperative for game developers to implement protective measures to safeguard consumers from the potential negative effects of in-game impulse purchases.Öğe Materyalizm, öz-benzeşim ve bireyselciliğin kişiselleştirilmiş reklama yönelik tutumlar ve kişiselleştirilmiş reklamlari sosyal ağlarda paylaşma niyeti üzerindeki etkileri(2016) Cengiz, Hakan; Özkara, Behçet YalinBu çalışmanın amacı tüketicilerin materyalizm, bireyselcilik ve öz-benzeşim düzeylerinin tüketici isimleri aracılığıyla kişiselleştirilmiş reklamlara yönelik tutumları ve bu tür reklamları sosyal ağlarda paylaşma niyetleri üzerindeki etkilerini incelemektir. Bu amaçla, verilerin toplanmasında kartopu örnekleme yöntemi benimsenmiş, sosyal medya üzerinden kullanıcılar çalışmaya davet edilmiş ve bu daveti ağlarındaki diğer kişilerle paylaşmaları istenmiştir. Çalışma kapsamında elde edilen 144 veri, Smart PLS paket programı aracılığıyla analiz edilmiştir. Araştırma sonuçları tüketicilerin markaya yönelik öz benzeşim düzeylerinin ilgili markanın kişiselleştirilmiş reklamlarına yönelik tutum ve ilgili reklamları sosyal ağlarda paylaşma niyeti üzerinde olumlu yönde anlamlı etkileri olduğuna işaret etmektedir. Ayrıca elde edilen bulgular, tüketicilerin materyalizm düzeyleri ve kişiselleştirilmiş reklama yönelik tutumlarının ilgili reklamları sosyal ağlarda paylaşma niyeti üzerinde olumlu yönde anlamlı etkileri olduğunu göstermektedirÖğe Sosyal ağ sitelerinde marka temelli içeriklerin paylaşılmasına yönelik güdülerin incelenmesi: facebook örneği(2016) Cengiz, Hakan; Karaarslan, Mustafa Halid; Akçalan, Elif; Malkoç, EnginSosyal ağ siteleri, işletmelerin marka mesajlarını yaymak için önemli mecralardan birisidir. Bu çalışmada tüketicilerin Facebook'ta marka temelli içerikleri yaymalarının temelindeki güdüler sorgulanmıştır. Veriler bir odak grup görüşmesi ve bireysel mülakatlar aracılığıyla toplamda 22 katılımcıdan elde edilmiştir. Verilerin analizinde sürekli karşılaştırmalı analiz yöntemi kullanılmıştır. Verilerin analizi sonucunda üç temel tema ve belirli alt temalara ulaşılmıştır: (1) sürekli iletişimde kalma: (i) ağızdan ağıza iletişim, (ii) kolay ve hızlı erişim, (iii) fırsatları takip etme; (2) Sosyal fayda: (i) referans grup etkisi; (3) eğlenme. Araştırma sonuçları tüketicilerin sosyal ağlarda marka temelli içerikleri yaymalarının temelinde yer alan güdüleri ortaya koymakta ve tüketici-marka etkileşiminde sosyal ağ sitelerinin önemini vurgulamaktadırÖğe Status Consumption as Coping With Fear of Death: The Mediating Role of Death Avoidance and the Moderating Role of Materialism(Sage Publications Inc, 2024) Cengiz, Hakan; Cacciatore, JoanneIndividuals employ various coping mechanisms to deal with the fear of death. While materialism and status consumption are commonly recognized in the literature as such strategies, no study has yet empirically tested this premise. Accordingly, this study examined the mediating role of death avoidance in the link between the fear of death and death-related status consumption (DRSC). Data obtained from 346 participants were analyzed using structural equation modeling. The results showed that fear of death significantly and positively influences DRSC and that death avoidance partially and positively mediates this relationship. Results also revealed that materialism strengthens the relationship between fear of death and DRSC, while it does not significantly moderate the relationship between death avoidance and DRSC. These results support the conclusion that death-related status consumption may play a critical role as an avoidance mechanism in coping with the fear of death. This study, being among the few that investigate death-related consumer behaviors, enriches both terror management theory and the literature on consumer behavior in crises.Öğe Tourists' need for uniqueness and ethnic food purchase intention: A moderated serial mediation model(Academic Press Ltd- Elsevier Science Ltd, 2023) Cengiz, Hakan; Cengiz, Hulya AkdemirAlthough the need for uniqueness has been extensively investigated by consumer researchers, food and tourism researchers have been silent on this promising research topic. This study examined food neophilia and ethnic food involvement as potential mediators of the association between tourists' need for uniqueness (TNFU) and ethnic food purchase intention. Additionally, it was tested whether independent self-construal moderates this serial mediation effect. Results showed that the relationship between tourists' need for uniqueness and ethnic food purchase intention was serially and positively mediated by food neophilia and ethnic food involvement. Furthermore, the moderated serial mediation effect was stronger at higher values of independent self-construal.Öğe Türk evlilik törenlerinde gösterişçi tüketim motivasyonlarının incelenmesi: yeni evli kadınlar üzerine nitel bir araştırma(2022) Kır, Esra; Cengiz, HakanBu çalışmanın temel amacı Türkiye’de evlilik törenlerinde gerçekleş- tirilen gösterişçi tüketim motivasyonlarını incelemektedir. Bu doğrul- tuda bu çalışma yeni evli kadınların evlilik törenlerindeki gösterişçi tüketim motivasyonlarını ortaya çıkarmak için nitel bir araştırma yön- temini benimsemiştir. Araştırmacılar fenomenolojik araştırma tasarı- mını benimseyerek derinlemesine mülakat ve katılımcı gözlem tek- niklerini kullanmışlardır. Literatür, gösteriş tüketimi çoğunlukla dışsal motivasyonlarla ilişkilendirmiştir. Ancak bu çalışma, evlilik gibi kül- türel olarak dramatize edilmiş bir yaşam dönümüne ilişkin gösterişçi tüketim davranışlarının içsel ve dışsal motivasyonlarla gerçekleştirile- bileceğini ortaya koymaktadır. Verilerin analizi sonucunda pazarlama literatüründe yaygın olarak kullanılan iki motivasyon türüne (dışsal ve içsel) sosyal psikoloji literatüründen ödünç alınan yarı dışsal motivas- yonlara ulaşılmış ve bu üç ana tema altında on kategori sınıflandırıl- mıştır. Bulgular ilgili literatür doğrultusunda tartışılmıştır.
