Çağ Üniversitesi Kurumsal Akademik Arşivi
DSpace@ÇAĞ, Çağ Üniversitesi tarafından doğrudan ve dolaylı olarak yayınlanan; kitap, makale, tez, bildiri, rapor, araştırma verisi gibi tüm akademik kaynakları uluslararası standartlarda dijital ortamda depolar, Üniversitenin akademik performansını izlemeye aracılık eder, kaynakları uzun süreli saklar ve telif haklarına uygun olarak Açık Erişime sunar.
Güncel Gönderiler
Turkiye's Carbon Emission Profile: A Global Analysis with the MEREC-PROMETHEE Hybrid Method
(MDPI, 2025) Pelit, İrem; Avşar, İlker İbrahim
This study conducts a comparative evaluation of Turkiye's carbon emission profile from both sectoral and global perspectives. Utilizing 2022 data from 76 countries, it applies two widely recognized multi-criteria decision-making (MCDM) methods: MEREC, for determining objective weights of criteria, and PROMETHEE II, for ranking countries based on these criteria. All data used in the analysis were obtained from the World Bank, a globally recognized and credible statistical source. The study evaluates seven criteria, including carbon emissions from the energy, transport, industry, and residential sectors, along with GDP-related indicators. The results indicate that Turkiye's carbon emissions, particularly from industry, transport, and energy, are substantially higher than the global average. Moreover, countries with higher levels of industrialization generally rank lower in environmental performance, highlighting a direct relationship between industrial activity and increased carbon emissions. According to PROMETHEE II rankings, Turkiye falls into the lower-middle tier among the assessed countries. In light of these findings, the study suggests that Turkiye should implement targeted, sector-specific policy measures to reduce emissions. The research aims to provide policymakers with a structured, data-driven framework that aligns with the country's broader sustainable development goals. MEREC was selected for its ability to produce unbiased criterion weights, while PROMETHEE II was chosen for its capacity to deliver clear and meaningful comparative rankings, making both methods highly suitable for evaluating environmental performance. This study also offers a broader analysis of how selected countries compare in terms of their carbon emissions. As carbon emissions remain one of the most pressing environmental challenges in the context of global warming and climate change, ranking countries based on emission levels serves both to support scientific inquiry and to increase international awareness. By relying on recent 2022 data, the study offers a timely snapshot of the global carbon emission landscape. Alongside its contribution to public awareness, the findings are expected to support policymakers in developing effective environmental strategies. Ultimately, this research contributes to the academic literature and lays a foundation for more sustainable environmental policy development.
A Multi-Criteria Framework for Economic Decision Support in Urban Sustainability: Comparative Insights from European Cities
(Scientific Oasis Publisher, 2025) Özekenci, Emre Kadir
Sustainable urban development has become an economic imperative as cities grapple with escalating environmental, social, and financial pressures. This study evaluates the economic performance and fiscal sustainability of European capitals-Stockholm, Oslo, Copenhagen, Lahti, London, Berlin, Madrid, Paris, Amsterdam, and & Idot;stanbul-through a robust Multi-Criteria Decision-Making (MCDM) framework. The analysis incorporates twelve key indicators that reflect not only environmental resilience but also resource efficiency, infrastructure investment, and the economic viability of sustainability policies. These include Scope 1 Emissions, Consumption-Based GHG Emissions, Particulate Air Pollution, Open Public Space, Road Infrastructure Efficiency, Sustainable Transport, Vehicle Dependence, Water Access, Water Consumption, Solid Waste Generated, Climate Change Resilience, and Sustainable Policy Implementation. A hybrid MCDM model combining MEREC-based RAWEC with Extended AROMAN and MARA methods was applied. The MEREC method was used to derive economically weighted priorities among criteria, while final rankings were aggregated using RAWEC, Extended AROMAN, MARA, and Borda Count methods. Results identified Scope 1 emissions as the most economically impactful criterion, while particulate air pollution had a lower fiscal weighting. Cities such as Stockholm, Oslo, and Copenhagen consistently emerged as top performers due to their cost-effective and forward-looking urban sustainability policies. In contrast, Paris, & Idot;stanbul, and Amsterdam demonstrated lower cost-efficiency scores. Sensitivity analysis further validated the model's reliability. This framework not only supports environmental assessment but also informs economic decision-making by guiding policymakers toward fiscally responsible and sustainable urban planning strategies.
Promoting transition towards sustainable air transport systems: A hybrid decision support system for effective national-level performance evaluation
(ELSEVIER SCI LTD, 2025) Kara, Karahan; Yalçın, Galip Cihan; Özekenci, Emre Kadir; Bilek, Günal; Simic, Vladimir; Tunçsiper, Çağatay; Pamucar, Dragan
Air transport plays a pivotal role in enhancing economic development by supporting trade, tourism, and regional competitiveness. The growing environmental concerns and social expectations have necessitated the transition towards sustainable air transport systems. Sustainable air transport refers to aviation activities that balance environmental, economic, and social objectives, aiming to minimize carbon emissions, promote renewable energy usage, and enhance socio-economic welfare. In this study, a novel multi-criteria decision-making (MCDM)based decision support system (DSS) is proposed to evaluate the sustainable air transport performance of the European countries. The main objective of this research is to develop a comprehensive and integrative framework for measuring and ranking the sustainable air transport performance of nations. A hybrid method, termed fractional fuzzy-ranking comparison-response to criteria weighting (RANCOM)-response to criteria weighting (RECA)-ranking technique by geometric mean of similarity ratio to optimal solution (RATGOS), is introduced. DSS consists of five main stages: expert-based subjective weighting using fractional fuzzy RANCOM, objective weighting via RECA, aggregation of weights, and final performance ranking through the RATGOS method. The results indicate that Germany ranks highest, while Cyprus has the lowest sustainable air transport performance among the evaluated countries. The criterion "commercial aircraft fleet by age of aircraft" is determined to have the highest importance among the sustainable air transport performance indicators. The study provides a comprehensive, replicable framework for policymakers and stakeholders aiming to monitor and improve sustainable aviation systems. It contributes to the literature by addressing the gap in national-level sustainable air transport performance evaluation.
Performance Measurement of the Logistics Companies on the Fortune 500 by Swara and Merec-Based Cradis Methods
(SCIENDO, 2024) Ozekenci, Emre Kadir
The aim of this study is to evaluate the performance of logistics companies on the Fortune 500 Turkey list using the SWARA-MEREC based CRADIS methods. The weight of criteria was determined by subjective and objective approaches, namely SWARA and MEREC, respectively. The performance of companies was ranked by the CRADIS method. The findings highlighted that net sales (NS) and export (EXP) were most and least important criteria, respectively. The result of the CRADIS method showed that Netlog, Borusan and Ekol had the highest performance, while Noatum, BDP International and Horoz had the lowest performance in 2022, respectively. The reliability and robustness of the proposed model was tested with sensitivity and comparative analyses. The results of the sensitivity analysis and comparative analysis showed that the proposed model provides consistent results.
The Mediating Role of Forgiveness and The Moderating Role of Perceived Partner Responsiveness in The Relationship Between Victim Sensitivity and Subjective Well-Being in Romantic Relationships
(ÇUKUROVA ÜNİVERSİTESİ, 2025) Doğruyol, Sena; Aslan, Aslı
Understanding how the concept of victim sensitivity in romantic relationships is perceived by married adults and evaluating this concept within the framework of subjective well-being is of great importance. The primary aim of the current research is to assess an individual's subjective well-being in the context of victim sensitivity, perceived partner responsiveness, and forgiveness variables. In this direction, the mediating roles of forgiveness (avoidance, retaliation, and benevolence) in the relationship between victim sensitivity and subjective well-being have been tested first. Subsequently, the moderating role of perceived partner sensitivity in the relationship between victim sensitivity and forgiveness was examined. The study group consists of a total of 398 participants, including 230 women and 168 men. Data were obtained using Satisfaction with Life Scale (SWLS), Positive-Negative Affect Scale (PANAS), Marital Forgiveness Scale-Event (MFS-E), Perceived Partner Responsiveness Scale (PPRS) and Victim Sensitivity in Romantic Relationships Scale (VSRRS). Furthermore, a demographic information form prepared by the researcher was used to collect personal information such as gender, age, monthly income, duration of marriage, and education level. Before analyzing the data, assumptions such as sample size, outliers, missing values, linearity, normality, and multicollinearity were also tested. The results indicated that avoidance and benevolence serve as mediating roles in the relationship between victim sensitivity and subjective well-being, while retaliation does not have a significant role. Furthermore, when analyzing the results of the moderating variable, it suggests that perceived partner responsiveness does not have a moderating role in the relationship between victim sensitivity and forgiveness. In conclusion, high levels of victim sensitivity in romantic partners may lead to negative experiences within the relationship. Therefore, the development of intervention programs targeting this domain may offer valuable guidance for future research and therapeutic practices.
