İşletme Bölümü Koleksiyonu
Permanent URI for this collectionhttps://hdl.handle.net/20.500.11779/1937
Browse
8 results
Search Results
Article Citation - WoS: 51Citation - Scopus: 94Blockchain Technology and Sustainability in Supply Chains and a Closer Look at Different Industries: a Mixed Method Approach(MDPI, 2022-12-08) Güner, Elif; Ayan, Büsra; Son-Turan, SemenBackground: This study presents a comprehensive review of blockchain technology with a sustainability orientation in supply chains and logistics. Methods: The publications are extracted from the Scopus and Web of Science databases, comprising 552 publications between 2017 and 2022. Several bibliometric laws and techniques, namely three-field analysis, Bradford’s Law, Lotka’s Law, and thematic maps, are applied in R with the bibliometrix package. Content analysis is also carried out based on 185 publications to appreciate the industry-based view of the field. Results: The bibliometric results indicate that this field is on the rise. Authors, sources, affiliations, countries, keywords, and their relationships are also addressed. The findings of the content analysis and thematic maps reveal that some of the most highlighted themes in the literature include traceability, COVID-19, the internet of things, and Industry 4.0. The most popular industry in this field is discovered to be food and agriculture. Conclusions: This paper contributes to the still relatively scarce literature on how blockchain technology fosters sustainable supply chains and logistics, providing a closer look at blockchain use, methodologies, and future directions for different industries concerning food, agriculture, fashion, textile and apparel, manufacturing, automotive, maritime and shipping, healthcare and pharmaceutical, mining and mineral, and energy. © 2022 by the authors.Article Citation - WoS: 10Citation - Scopus: 27Fostering Equality in Education: the Blockchain Business Model for Higher Education (bbm-He)(MDPI, 2022-03-03) Turan, S. Semen; Son-Turan, SemenThis paper seeks to address which business model in higher education that fosters SDG 4, is adequate for the post-pandemic period. To that end, it introduces the “Blockchain Business Model for Higher Education” (BBM-HE) and a transformed business model canvas framework based on existing literature, concepts, theories and findings relating to most of the pressing issues in higher education from the present study. To determine these issues, secondary data is used in the qualitative research design by applying inductive content analysis techniques to online reports. The originality of this study lies in the “adaptive” perspective to the requirements of the post-pandemic higher education landscape, which consists of modifications to the core elements of higher education, the integration of blockchain technology into the entire system, and a stronger approach to sustainability practice through sustainability tokens. The envisaged model sets out to provide a roadmap for all stakeholders, but most importantly, “decentralized” higher education institutions of the future and the “employable skills-seeking” proactive students all over the world, as opposed to the former “solely degree-focused and affluent” consumers of educational offerings. This study contributes to higher education literature in terms of business models, blockchains, pandemics, and sustainability.Article Türkiye'de Yükseköğrenim Finansmanının Özelleştirilmesi(Sosyoekonomi Society, 2018-01-31) Son-Turan, SemenThis study aims at developing a model for the privatization of higher education finance inTurkey. While the primary target is the NEET (Not in Education, Employment, or Training)population, it offers a broad range of potential solutions involving asset securitization for highereducation financing. Data is driven from secondary sources. The paper presents an interdisciplinaryapproach for privatizing higher education finance involving the labor market, higher educationinstitutions and the Turkish capital market and constitutes a unique contribution to the Turkish highereducation finance literature.Article Internet Search Volume and Stock Return Volatility: the Case of Turkish Companies(IFRD, 2014) Son-Turan, SemenThis study analyzes the relationship of the volatility of stock returns and internet search volume (ISV). The dataset consists of 10 Turkish companies listed on the BIST-100 Index of Borsa Istanbul, and encompasses the period between January 2004-September 2013. The GARCH (1,1) model is applied with two alternative mean specifications. The use of the novel exogenous variable ISV as proxy for investor sentiment is complemented through the inclusion of trading volume.Results show that as the GARCH (1,1) model becomes increasingly nested, volatility persistence declines with however no case of a vanishing G(ARCH) effect.Article The Impact of Investor Sentiment on the "leverage Effect"(Econometric Research Association, 2016) Son-Turan, SemenWith the advent of the Internet and the availability of user search query data on a broaderscale, since the early 2000s researchers have started using collective search queryinformation instead of, or, in addition to, traditional investor sentiment proxies. Thisstudy examines whether the leverage (bad news) effect, as measured by theEGARCH (1,1) model, changes with the inclusion of a newly emerging sentiment proxy,internet search volume. The sample consists of 14 US companies belonging to theNASDAQ and NYSE Indices and 501 observations of data collected at weekly frequencyspanning a nine year period. Empirical findings suggest that, inclusion of the investorsentiment variable has no clear impact on the bad news effect; there is, however, adiscernible increase in volatility persistence. The implications of the findings are that theinvestor sentiment proxy has additional informational content. Behavioral finance theoryand the availability and social proof heuristics serve as potential explanations for suchfindings.Conference Object Citation - WoS: 31Financial Innovation-Crowdfunding: Friend or Foe?(Elsevier, 2015-07-01) Son-Turan, Semen; Turan, Semen SonA phenomenon with a considerable past, and with new conspicuous investment models and financial products and servicesproliferated through the Internet; financial innovation seems to be almost ubiquitous these days. While there are numerousadvantages, especially nowadays through the exploitation of easily accessible, low cost and convenient e-commerce platforms,innovation in the finance sector does not come without its perils. Banks and traditional financial institutions are losing chunks ofmarket share to virtual intermediaries and investors are operating in relatively less regulated and, consequently, less secureenvironments. Furthermore, from the perspective of all stakeholders, there is a Knightian uncertainty component of the long-termramifications in investing in and through newly developed products and platforms. As such, it is only recently that economichistory witnessed the outbreak of the sub-prime mortgage crisis caused by the unraveling of a chain of events interlinked throughthe imprudent use of “innovative” derivative transactions involving credit default swaps backed by the insatiable appetite of the“irrationally exuberant” investor and the easement of regulation paving the leeway for predatory lending. This paper investigateswhether and to what extent innovative investment models such as crowdfunding, as the game-changer, forcing the tightlyregulated securities markets to adapt to the rules of the WEB 3.0 era and relieved through the provision, Title III, of the JOBSAct, could be a potential peril. To that end, it discusses the evolution of the equity crowdfunding model in the realm of thetechnology push - demand pull framework and analyzes the current situation of the market.Article Citation - WoS: 33Citation - Scopus: 44Lean, Green and Clean? Sustainability Reporting in the Logistics Sector(MDPI, 2019-01-09) Lambrechts, Wim; Semeijn, Janjaap; Son-Turan, Semen; Reis, LucindaTransport and logistics activities contribute heavily to global sustainability problems, yet the implementation of corporate social responsibility and sustainability reporting in the sector lags behind. This paper aims to analyze sustainability reporting in the logistics sector, with focus on environmental, social and economic indicators. An extensive operationalization of sustainability indicators is used to examine and analyze the sustainability reports of 52 organizations in the logistics sector worldwide. Results show that the sector does not agree on the materiality of sustainability indicators. Furthermore, sustainability reporting seems to be incompatible with daily operations, leading to obscurity in reports. This contrast, between the necessary existence of organizations in the logistics sector and their undesirable environmental and social effects, calls for future research into how organizations are coping with this paradox. A viable way forward is needed in order to ensure materiality in the sectors’ efforts toward sustainability reporting.Article Citation - WoS: 2Citation - Scopus: 3Reforming Higher Education Finance in Turkey: the Alumni-Crowdfunded Student Debt Fund "a-Csdf" Model(TEDMEM, 2016-04-27) Son-Turan, SemenThis study presents an innovative and sustainable system formobilizing Turkish university alumni to contribute to acrowdfunded pool repackaged as a student debt instrument withan elaborate performance tracking tool, various payoff structuresand income-contingent repayment schedules. The ultimate aim isto offer a remedy for the conspicuous global shortage ofalternative finance sources and various forms of aid to highereducation students in the short-term, and, through enablingequitable and egalitarian access to quality higher education,transforming society and enhancing economic development in thelonger-term. The model rests upon a six-dimensional frameworkand its infrastructure is facilitated by a newly emerged form ofdigitally enhanced financing, “crowdfunding”. The researchmethod involves content analysis and data triangulation forvalidation purposes to determine the sub-themes surrounding thehigher education problem in Turkey. The theme-driven keywordsare searched for on Turkey’s first original social network, EksiSozluk, to uncover trends and biases towards student loans, debtrepayment and associated concepts. Subsequently, the samekeywords are utilized in a Google Trends search volume analysis,and are finally validated by a focus group discussion. Thetheoretical framework to explain students’ attitudes towardsborrowing and loan repayment and the motivation behind alumniand charitable giving, rests mainly on behavioral economics. TheA-CDSF Model uniquely addresses the higher education financeproblem in Turkey and offers an easily implementable originalsolution for institutions and policy makers.