İşletme Bölümü Koleksiyonu

Permanent URI for this collectionhttps://hdl.handle.net/20.500.12573/411

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Cultural Origins of Business Formation
(Erhan AYDIN, 2024) Gökmen, Seyit; 0009-0006-8451-9513; AGÜ, Yönetim Bilimleri Fakültesi, İşletme Bölümü; Gökmen, Seyit
This paper presents a conceptual framework connecting historical kinship structures and generalized trust into modern business formation. Kinship intensity, defined as the degree of strength in family ties, is shaping the social and economic outlook of societies. Building upon the existing literature, I argue that societies with strong kinship ties often exhibit collectivist characteristics, leading to less trust towards outsiders. This hinders market efficiency and collaborative partnerships, resulting in business formation being largely confined to family-owned enterprises. Conversely, societies with loose kinship structures exhibits higher level of generalized trust that enable to promote engagements beyond family networks. This promotes establishing larger firms with strangers, more efficient markets, and greater cooperation with foreign firms. The paper suggests that kinship and trust behavior are deeply rooted in culture and influence social and economic development. It is important for policymakers to support initiatives that foster trust beyond family ties to promote collaboration among diverse market participants.
Green vehicle routing problem
(Nova Science Publishers, Inc., 2024) Madenoglu, Fatma Selen; 0000-0002-5577-4471; AGÜ, Yönetim Bilimleri Fakültesi, İşletme Bölümü; Madenoglu, Fatma Selen
The decrease in natural resources, the fact that greenhouse gases cause global warming, and consumers' sensitivity to environmental, and health issues have forced businesses to develop sustainable strategies. The idea of "green logistics," which is focused on carrying out economically sensible environmental activities when producing goods and services, has gained significant relevance for this reason. Transportation activity is one of the most basic costs of logistics activity. Due to the fuels used in transportation and the greenhouse gases released, it has become vital to develop and implement sustainable and green energy policies in logistics activities. Green logistics has become one of the areas that needs to be emphasized. A metaheuristic is presented and proposed to solve the vehicle routing problem, which is a type of vehicle routing problem involved in optimizing simultaneous pickup and delivery considering carbon emissions in logistics activities. A green logistics approach is presented in order to guide businesses that aim to produce services in accordance with sustainable and green energy policies.
Solving Optimization Problem with Particle Swarm Optimization: Solving Hybrid Flow Shop Scheduling Problem with Particle Swarm Optimization Algorithm
(SPRINGER LINK, 2021) Madenoğlu, Fatma Selen; 0000-0002-5577-4471; AGÜ, Yönetim Bilimleri Fakültesi, İşletme Bölümü; Madenoğlu, Fatma Selen
The flow shop scheduling problem is widely discussed in the literature since it is frequently applied in real industry. This paper presents a variant of flow shop scheduling problem with parallel machines. The proposed problem includes multistage and identical parallel machines at each stage, and the sequence-dependent setup time and transportation time are considered. The objective function is minimization of makespan. The particle swarm optimization algorithm (PSO) is addressed to solve the problem and compared with genetic algorithm and heuristics. The benchmark instances are generated to demonstrate the performance of the PSO. The numerical results show that the PSO significantly outperforms the comparison set.
Managing transportation in supply chain: Metaheuristics for solving a capacitated fixed-charge transportation problem
(IGI Global, 2021) Madenoğlu, Fatma Selen; 0000-0002-5577-4471; AGÜ, Yönetim Bilimleri Fakültesi, İşletme Bölümü; Madenoğlu, Fatma Selen
Supply chain management is the managing of all processes of goods, services, and information from suppliers to customers. Transportation network design is an important part of effective supply chain management. This chapter presents the two-stage fixed-charge transportation problem in a supply chain to minimize the total cost containing the opening cost of distribution centers, transportation cost from manufacture to distribution centers and from distribution centers to customers, and fixed cost for transportation from distribution centers to customers. There are the capacity constraints on distribution centers in order to consider real life situations in this chapter. A constructive based algorithm and a population-based algorithm are proposed to solve this complex optimization problem. Taguchi experimental design is applied for determining the best combinations of parameters. The experimental studies are conducted to compare the performance of the proposed algorithms according to solution quality.
Pay Geri Alım Programlarında Firma Büyüklüğü Etkisi: Borsa İstanbul Üzerine Bir Uygulama
(İŞLETME ARAŞTIRMALARI DERGİSİ/JOURNAL OF BUSINESS RESEARCH-TURK, 2023) Torun , Rana; Karan, Mehmet Baha; 0000-0002-4776-4011; AGÜ, Yönetim Bilimleri Fakültesi, İşletme Bölümü; Torun, Rana
Amaç – Çalışmada, Borsa İstanbul’da payları işlem gören şirketlerin 2018-2021 yılları arasında pay geri alım programı başlatılmasına dair Kamu Aydınlatma Platformu’na yapmış oldukları 74 adet duyurunun pay getirilerini etkileyip etkilemediği ve pay piyasasının yarı-güçlü formda etkin olup olmadığının incelenmesi amaçlanmaktadır. Ayrıca, firmaların aktif büyüklüğü göz önünde bulundurularak pay geri alım programlarına verilen tepkilerin karşılaştırılarak analiz edilmesi de amaçlanmıştır. Yöntem – Çalışmada Etkin Piyasalar Hipotezi temel alınmış ve olay çalışması yöntemi kullanılmıştır. Borsada işlem gören şirketlere pay geri alım izninin verildiği 2011 yılından sonraki dönem olan 2018- 2021 yıllarını kapsayan 4 yılın analize dahil edildiği bu çalışmada, her bir şirket için pay geri alım programı bildiriminin yapıldığı gün (t0) olay günü olarak belirlenmiştir. Olay çalışması kapsamında olay penceresi aralığı (t-20, t+20) olmak üzere 41 işgünü, tahmin penceresi aralığı ise (t-20, t-120) arasındaki 101 iş günüdür. Çalışmada, piyasa modeli tahmin modeli olarak kullanılmış olup piyasa getirisini ölçmek için BİST 100 Endeksinin getirisinden, şirketlerin pay getirileri için ise her bir şirketin pay getirisinden yararlanılmıştır. Bulgular – Elde edilen bulgular, olay penceresi aralığında pozitif anormal getirilerin elde edilebildiğini göstermiştir. Araştırma sonucunda, ele alınan dönem için pay geri alım programı duyurularının Borsa İstanbul Pay Piyasasının etkilediği ve piyasanın yarı-güçlü formda etkin bir piyasa olmadığı gözlemlenmiştir. Ek olarak, küçük firmalar tarafından yapılan duyurular sonucunda elde edilen anormal getirinin %5 ve %10 anlamlılık düzeylerinde anlamlı olduğu bulgulamıştır. Tartışma – Çalışmada, Borsa İstanbul Pay piyasasının Etkin Piyasalar Hipotezi’ne göre yarı güçlü formda etkin bir şekilde faaliyette bulunmadığı belirlenmiştir. Dolasıyla, pay geri alım programlarına ilişkin bilgilerin pay fiyatlarına hızlı bir şekilde yansımadığı ve yatırımcıların bu bilgileri kullanılarak anormal getiri elde etme olasılığına sahip olduğu görülmüştür. Ek olarak, pay geri alım programı duyurularının pay değerine etkisi küçük ve büyük firma ayrımı yapılarak karşılaştırılmıştır.
Industry 4.0: A bibliometric analysis
(Nova Science Publishers, Inc., 2023) Madenoğlu, Fatma Selen; 0000-0002-5577-4471; AGÜ, Yönetim Bilimleri Fakültesi, İşletme Bölümü; Madenoğlu, Fatma Selen
With the emergence of Industry 4.0, organizations' interest in digital transformation has significantly expanded to remain competitive. As a result, organizational digital transformations have appeared. Nowadays, machine learning is built into every device, and automation has taken center stage. This paper presents a bibliometric study and in-depth research on the most recent advancements in the "Industry 4.0" field. The top 10 most cited publications and authors, main research areas, publications, and countries are all examined as part of the bibliometric study, which also extracts data on the overall number of publications and citations. The organizational transformation highlighted in the publications is then examined after a detailed analysis of the most cited publications. In this paper, the publications on Industry 4.0 are examined and in addition, publications that deal with Industry 4.0 and organizational transformation are presented.
Portfolio optimization: An application on the BIST-30 Index
(Peter Lang AG, 2023) Madenoğlu, Fatma Selen; Ünlüsoy, Ömer Faruk; 0000-0002-5577-4471; 0000-0002-3252-5720; AGÜ, Yönetim Bilimleri Fakültesi, İşletme Bölümü; Madenoğlu, Fatma Selen; Ünlüsoy, Ömer Faruk
F. S. Madenoğlu And Ö. F. Ünlüsoy, "Portfolio Optimization: An Application on the BIST-30 Index," In Interdisciplinary Public Finance, Business and Economics Studies– Volume VI , Berlin: Peter Lang Publishing, Inc., 2023, pp.75-87.
Examination of Provinces in Türkiye about Sectoral Employment Share by Cluster Analysis
(Anadolu Üniversitesi, 2024) Sungur, Banu Bitgen; Madenoğlu, Fatma Selen; 0000- 0002-5577-4471; AGÜ, Yönetim Bilimleri Fakültesi, İşletme Bölümü; Madenoğlu, Fatma Selen
The significance of regional dynamics in the process of economic development and regional development has increased as a result of significant factors like competitiveness, human resource development, and observation of the global market. In this study, mathematical programming-based cluster analysis has been conducted to group the regions in Türkiye according to sectoral employment rates. A mixed integer mathematical model is presented that maximizes the smallest of the out-of-cluster distances while minimizing the largest within-cluster distance. Level 2- 26 sub-regions in Türkiye are clustered according to sectoral employment data for 2021 and 2022. As a result, two clusters were obtained for both years in our country according to employment status by gender on a sectoral basis. One of these clusters is where the employment rate of the agricultural sector is higher than other sectors, and the other is where the employment rate of the industrial and service sectors is higher. When the 2021 and 2022 clusters are compared, in total, TR22, TR32, TR33, TRC3; in men, TR21, TR22, TR32, TR52, TR81; In women, it was observed that TRC1 regions were assigned to different clusters. By implementing a successful employment policy as human resource development across the national government, it will be possible to ensure the balanced growth of provinces located in Türkiye's various geographical areas.
Alliances to acquisitions: A road map to advance the field of strategic management
(Emerald Group Publishing Ltd., 2017) Zakaria, Rimi; Genc, Omer Faruk; AGÜ, Yönetim Bilimleri Fakültesi, İşletme Bölümü; Genc, Omer Faruk
Although primarily treated as two distinct research streams, strategic alliances and mergers and acquisitions together occupy much of the strategic management discourse. Alliances, in many cases, end in acquisitions as firms use alliances as intermediate strategic options to eventually acquire a partner. As the discipline of strategy matures and the frequency and the volume of inter-firm cooperation continue to rise, it is imperative to integrate these two research streams for a holistic understanding of the theory of the firm. The purpose of this conceptual piece is threefold. First, we review the extant studies that combine these two governance modes: alliance and acquisitions. Second, drawing on the dominant strategic management theories, we highlight how prior inter-firm alliances inform future acquisitions in terms of (a) pre-combination decisions, (b) post-deal integration processes, (c) alternatives and strategies, and (d) performance outcomes. Finally, in view of the emerging trends and evocative gaps, we offer a conceptual road map to encourage future theoretical development and empirical research. Copyright
A comparative analysis of international and domestic acquisitions: What drives acquirer competitiveness?
(Inderscience Publishers, 2018) Genc, Omer Faruk; Zakaria, Rimi; AGÜ, Yönetim Bilimleri Fakültesi, İşletme Bölümü; Genc, Omer Faruk
Despite several decades of research in the context of mergers and acquisitions (M&As), an understanding of acquirer competitiveness in international vis-à-vis domestic acquisitions remains inconclusive. This empirical study presents a comparative framework to identify a set of intangible factors that differentiate the long-term competitiveness of acquirers engaging in both of these types of acquisitions. Building on the information asymmetry logic, we find that access to accurate information, acquirers’ research and development (R&D) intensity, and similarity between the acquirer and the target play a vital role in determining the overall competitiveness of acquirers. Using a sample of all the M&As that occurred between 1985 and 2007 and applying a matching control methodology, sound comparisons are made to draw conclusions. From a theoretical standpoint, the findings help generalise the importance of intangible factors from the contextual, acquirer-centric, and dyadic angles. From a practical viewpoint, the conclusions enable managers to evaluate their firms’ preparedness for international vis-à-vis domestic acquisitions.
Business process management in hotels: with a focus on delivering quality guest service
(SPRINGER, 2019) Özdemir, Ali İhsan; Çolak, Abdullah; Shmilli, Jerina; 0000-0002-5037-8760; 0000-0002-9616-3060; AGÜ, Yönetim Bilimleri Fakültesi, İşletme Bölümü; Özdemir, Ali İhsan; Çolak, Abdullah
In this study business process management as a tool of improvement service quality is introduced and it is examined that how it can be used to improve service quality in hotel sector. It is assumed that re-engineering of the business processes in hotel may contribute to optimize the operational processes and service by focusing on guest service. All the interactions and transactions between the guest and the hotel during her/his stay, determine the type and nature of front ofce operations. The stages of guest stay are: (a) pre-arrival, (b) arrival and accommodation, (c) stay, and (d) departure. Each steps are analyzed and business process improvements are applied by case study approach in a hotel which is one of the biggest hotel in Tirana, Albania. As a result of this study valuable recommendations are developed to enhance guest service quality
An analysis of annual reports from the sustainable development goals perspective
(Emerald Publishing, 2023) Hacıhasanoğlu, Erk; Ünlüsoy, Ömer Faruk; Madenoğlu, Fatma Selen; 0000-0002-3252-5720; AGÜ, Yönetim Bilimleri Fakültesi, İşletme Bölümü; Hacıhasanoğlu, Erk; Ünlüsoy, Ömer Faruk; Madenoğlu, Fatma Selen
Purpose – The sustainable development goals (SDGs) are introduced to guide achieving the sustainable goals and tackle the global problems. United Nations members may perform activities to achieve the predetermined goals and report on their SDG activities. The comprehension and commitment of several stakeholders are essential for the effective implementation of the SDGs. Countries encourage their stakeholders to perform and report their activities to meet the SDGs. The purpose of this study is to investigate the extent to which corporations’ annual reports address the SDGs to assess and comprehend their level of commitment to, priority of and integration of SDGs within their reporting structure. This research makes it easier to evaluate corporations’ sustainability performance and contributions to global sustainability goals by looking at the extent to which they address the SDGs. Design/methodology/approach – In the study, it is revealed to what extent the reports meet the SDGs with the multilabel text classification approach. The SDG classification is carried out by examining the report with the help of a text analysis tool based on an enhanced version of gradient boosting. The implementation of a machine learning-based model allowed it to determine which SDGs are associated with the company’s operations without the requirement for the report’s authors to perform so. Therefore, instead of reading the texts to seek for ‘‘SDG’’ evidence as typically occurs in the literature, SDG proof was searched in relevant texts. Findings – To show the feasibility of the study, the annual reports of the leading companies in Turkey are examined, and the results are interpreted. The study produced results including insights into the sustainable practices of businesses, priority SDG selection, benchmarking and business comparison, gaps and improvement opportunities identification and representation of the SDGs’ importance. Originality/value – The findings of the analysis of annual reports indicate which SDGs they are concerned about. A gap in the literature can be noticed in the analysis of annual reports of companies that fall under a particular framework. In addition, it has sparked the idea of conducting research on a global scale and in a time series. With the aid of this research, decision-making procedures can be guided, and advancements toward the SDGs can be achieved.
The impact of perceived social media interactivity on brand trust. The mediating role of perceived social media agility and the moderating role of brand value
(2023) Bozkurt, Sıddık; Gligor, David; Ozer, Serhat; Sarp, Serap; Srivastava, Rajesh; 0000-0001-7626-6487; 0000-0002-2560-4105; AGÜ, Yönetim Bilimleri Fakültesi, İşletme Bölümü; Ozer, Serhat; Sarp, Serap
Although earlier studies shed light on the signifcance of perceived social media interactivity, its impact on perceived social media agility and brand trust has yet to be thoroughly investigated. The current study addresses this gap by examining the complex relationship between perceived social media interactivity, brand trust, perceived social media agility, and brand value. To further unpack these complex relationships, the current study investigates the role of gender as a moderating variable on the moderation efect of brand value between perceived social media interactivity and perceived social media agility. In this regard, an online survey (N=275) was conducted to measure the constructs of interest. PROCESS Models 1, 3, and 4 were used to test the research hypotheses. The results show that individuals perceive highly interactive brands as more agile on social media, leading to high brand trust levels. The results also indicate that the positive link between perceived social media interactivity and perceived social media agility is contingent on consumers’ perceived brand value. The results further display that the conditional efect of perceived social media interactivity on perceived social media agility as a function of brand value is moderated by consumers’ gender. Most interestingly, the conditional efect of perceived social media interactivity on perceived social media agility as a function of brand value is only signifcant for men.
TURKISH MERGERS AND ACQUISITIONS (M&As): A HISTORICAL VIEW OF CHARACTERISTICS, TRENDS, AND DIRECTIONS
(Zonguldak Bülent Ecevit Üniversitesi, 2018) Genç, Ömer Faruk; Kalkan, Burak; 0000-0001-7747-1095; AGÜ, Yönetim Bilimleri Fakültesi, İşletme Bölümü; Kalkan, Burak
This study analyses acquisitions that Turkish companies are involved between 1990- 2017 by analyzing trends in number and volume of activity, geographic dispersion of foreign acquirers and targets, deal characteristics. We also group acquisitions into three according to the home country of acquirers and targets and compare. As being the first study to analyze all three groups at the same time and having the most comprehensive sample in terms of period, this study contributes to the literature by providing a detailed and comprehensive understanding of Turkish M&As. We finally discuss implications for firms and policymakers while providing insights for future research
Identification of the drivers of and barriers to COVID-19 vaccine intake behavior using a mixed-method design: implications from a developing country
(ELSEVIER ESPANA, 2023) Kordestani, Arash; Oghazi, Pejvak; Izmir, Onur; Oypan, Oguz; Ozer, Serhat; 0000-0001-7626-6487; AGÜ, Yönetim Bilimleri Fakültesi, İşletme Bölümü; Ozer, Serhat
Various COVID-19 vaccines are available across the world. However, short phases of clinical trials for emer-gency use and myriad rumors about and misinformation on vaccines spread through different media sources, induce confusion and trigger vaccine hesitancy behavior. Although clinical trials demonstrated promising results in the ability of vaccines to protect, social endeavor is required for vaccines to succeed. Mitigation of the pandemic is only possible through widespread acceptance of the vaccine. Thus, identifying the factors that impact vaccine intake is crucial. This study determined factors that affect intentions toward vaccination using a mixed-method approach, in which qualitative and quantitative analyses were conducted together. Analysis of variance (ANOVA) is used in the quantitative study, and content analysis is employed in the quali-tative study. The final sample of this mixed-method study consists of 568 participants for the quantitative study and 237 for the qualitative study. They were selected using an online questionnaire. Findings suggest that social, psychological, attitudinal, perceptual, and informational factors play a crucial role in shaping peo-ple's intentions toward vaccines, ultimately influencing their decision to accept or reject vaccination. Results of both the qualitative and quantitative studies, in parallel with each other, indicated similar barriers against and drivers toward vaccine intake behavior, providing strong insights into the reasons behind vaccine accep-tance and hesitancy. Based on the insights gained in this study, a set of recommendations were compiled for policymakers.& COPY; 2023 The Author(s). Published by Elsevier Espana, S.L.U. on behalf of Journal of Innovation & Knowledge. This is an open access article under the CC BY license
PERSONALIZATION IN MARKETING: HOW DO PEOPLE PERCEIVE PERSONALIZATION PRACTICES IN THE BUSINESS WORLD?
(CALIFORNIA STATE UNIV, 2023) Aksoy, Nilsah Cavdar; Kabadayi, Ebru Tumer; Yilmaz, Cengiz; Kocak-Alan, Alev; AGÜ, Yönetim Bilimleri Fakültesi, İşletme Bölümü; Yilmaz, Cengiz
With emerging digital technologies, personalization has become a key activity for marketing strategy to gain competitive success in customer relationships. The aim of this study is to develop and empirically assess a general measurement model of perceived personalization. Multiple data gathering processes and rigorous empirical testing procedures are employed to assess and validate the proposed measurement model. The perceived personalization scale developed in the study rests on the focus of what is personalized and includes three main categories: (1) individuallevel, (2) social-level, and (3) situation-based personalization. A multidimensional measure of personalization is developed based on these categories and is validated via several tests, including a test of nomological validity exploring the effects of perceived personalization on critical customer responses such as positive emotions, negative emotions, perceived sincerity, satisfaction, and behavioral intentions. These findings shed light on and open new avenues of development for this growing practice for both researchers and practitioners in marketing.
Sosyal medyanın çok katlı pazarlamada kullanımı ve iş tatmini üzerindeki etkileri
(Bandırma Onyedi Eylül Üniversitesi, 2012) Emirza, Emin; İştahlı, Selma B.; İştahlı, Yusuf H.; AGÜ, Yönetim Bilimleri Fakültesi, İşletme Bölümü; İştahlı, Yusuf H.
Kitle iletişim kanallarının bölünmüşlüğü ve reklam mesajlarının çokluğu, doğru hedef kitleye ulaşmayı ve mesajın müşteriler tarafından algılanmasını zorlaştırmaktadır. Bundan dolayı geleneksel medya kanallarında yapılan tutundurma çabaları sorgulanır hale gelirken, sosyal medya ortamları reklam, halkla ilişkiler vb. alanlarda etkili iletişim stratejilerinin üretilmesinde giderek daha fazla önem kazanmaya başlamıştır. Diğer taraftan sosyal medyanın sunduğu çevrimiçi olanaklarla, bireyi içerik üreten, paylaşan, tavsiye eden kısaca interaktif olarak pazarlama sürecini etkileyen aktörler haline getirmesi, satıcı-alıcı ilişkilerine dair paradigmaları değiştirmektedir. Bu potansiyelin ilk farkına varan ve iş süreçlerine uygulayan işletmelerin başında “çok katlı pazarlama” stratejisini kullanan işletmeler gelmektedir. Satış odaklı çok katlı pazarlama sisteminde, bağımsız girişimcilerin performanslarını etkileyen iş tatmin düzeylerinin yükseltilmesi, yeni müşteri ve bağımsız girişimciler kazanma açısından önemlidir. Sosyal medyanın, içerik üretmeye ve anlık etkileşime olanak sağlamasının bağımsız girişimcilerin iş tatminini olumlu etkilediği düşülmektedir. Bu varsayımdan hareketle çok katlı pazarlama stratejisini kullanan küresel bir işletmenin Türkiye’deki serbest girişimcilerinin sosyal medyayı kullanım biçimleri ve bunun iş tatmini üzerindeki etkileri incelenmiştir. Anket yöntemi kullanılarak yapılan araştırmada, serbest girişimcilerin sosyal medyayı, yüz yüze iletişim kadar önemsedikleri fakat iş amaçlı olarak kullanma konusunda yeterli motivasyona sahip olmadıkları gözlemlenmiştir. Bu gözlemi destekleyen regresyon analizlerinde, bağımsız girişimcilerin sosyal medya kullanım düzeylerinin, iş tatmini açıklamada etkili fakat zayıf bir etkiye sahip olduğu ortaya çıkmıştır. Korelasyon analizlerinde ise, sosyal medya kullanım düzeyi ile içsel iş tatmini, dışsal iş tatmini ve genel iş tatmini arasında pozitif doğrusal bir ilişki olduğu anlaşılmıştır.
A CASE STUDY: DO MISCONCEPTIONS LEAD TO INTERGROUP CONFLICTS AT WORKPLACES?
(ACC Publishing, 2019) Süklün, Harika; 0000-0003-1016-268X; AGÜ, Yönetim Bilimleri Fakültesi, İşletme Bölümü; Süklün, Harika
This study's purpose was to investigate if misconceptions lead to conflicts and increase attention among scholars for further research as well. Although misconception is one of the roots of conflicts is somehow accepted, especially by the practitioners, there are not many empirical studies conducted to investigate if there is a relationship between misconception and conflicts. This study is prepared on a small scale as a starting point. To explore the subject better case study methodology is used. Two different studies conducted to be able to compare and analyze the situation among the groups. One group is taken as in-group and the other group is taken as out-group. This study's findings revealed that misconception leads to conflict at workplaces and to a hostile work environment. "We vs. them" situation among the groups and intergroup conflicts are observed. Conclusion and limitation are discussed.
SOLVING THE HYBRID FLOW SHOP SCHEDULING PROBLEM USING HEURISTIC ALGORITHMS
(ACC Publishing, 2019) Madenoğlu, Fatma Selen; 0000-0002-5577-4471; AGÜ, Yönetim Bilimleri Fakültesi, İşletme Bölümü; Madenoğlu, Fatma Selen
A variant of the hybrid flow shop (HFS) problem considering missing operations, transportation timesand sequence-dependent setup times is investigated. Heuristic algorithms along with dispatching rulesanddispatching rules are used to solve the given problem. The objective function is minimization makespan. Thecomputational experimets are conducted to test the performance of the heuristic algoirthms and dispatching rules.In order to depict the effect of the factors: number of jobs, number of machines, number of production stages, levelof missing operations on the result, the additiol experimentes are carried out. The result of NEH heuristic withSPTF rule outperformed other heuristics for the proposed HFS problems.
BULANIK ÇOK KRİTERLİ KARAR VERME ORTAMINDA YEŞİL TEDARİKÇİ SEÇİMİ
(ACC Publishing, 2019) Madenoğlu, Fatma Selen; 0000-0002-5577-4471; AGÜ, Yönetim Bilimleri Fakültesi, İşletme Bölümü; Madenoğlu, Fatma Selen
Yasal düzenlemeler ve müşterilerin artan çevre koruma bilinci, işletmeleri tedarik zinciri faaliyetlerini,yeşil tedarikçi zinciri yönetimine uygun olarak çevreye daha az zarar verecek şekilde yapılandırmaya özengösterir hale getirmiştir. Yeşil tedarikçi seçimi, yeşil tedarik zinciri yönetiminde rol alan önemli faktörlerdendir.Yeşil tedarikçi seçiminde ekonomik ve çevresel kriterler birlikte ele alınmaktadır. Yeşil tedarikçi seçimproblemleri belirsizlik içerdiğinden karar vericilerin dilsel ifadelerle görüşlerini belirtebilecekleri bulanık kümeteorisi kullanılmaktadır. Yeşil tedarikçi seçim probleminde, birden fazla alternatif birden fazla kritere göredeğerlendirildiğinden, çok kriterli karar verme yöntemleri bu problemin çözümü için oldukça uygundur. Buçalışmanın temel amacı, nicel verilerin yetersiz olduğu yeşil tedarikçi seçim ortamında, önerilen çözümyöntemini kullanarak yeşil tedarikçi seçimini gerçekleştirmektir. Önerilen modelde, yeşil tedarikçi sıralamasıBulanık TOPSİS, Bulanık Vikor, Bulanık Gri İlişkisel Analiz, Bulanık Aras yöntemleri ile elde edilmiştir.Tedarikçi seçim ve değerlendirme kriter ağırlıkları bulanık SWARA yöntemiyle belirlenmiş ve bilgi kaybınınolmasını önlemek için çok kriterli karar verme problemlerinde de kriter ağırlıkları bulanık sayı olarakkullanılmıştır. Önerilen çözüm modeli, orta ölçekli şehir mobilya üretimi gerçekleştiren bir işletmenin yeşiltedarikçi seçim sürecine uygulanmıştır. Bu uygulama için yapılan hesaplamalar neticesinde dört yöntemden aynıtedarikçi sıralaması elde edilmiştir. Çalışmada kullanılan dört çok kriterli karar verme yönteminin temel vekavramsal özellikleri değerlendirilmiştir. Bu problem için gri ilişkisel analiz yönteminin daha uygun olduğusonucuna varılmıştır.

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