İşletme Bölümü Koleksiyonu
Permanent URI for this collectionhttps://hdl.handle.net/20.500.11779/1937
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Conference Object Prediction of Loan Decisions With Optical Neuroimaging (fnirs) and Machine Learning(IEEE, 2023-07-05) Girişken, Yener; Son Turan, Semen; Çakar, Tuna; Ertuğrul, Seyit; Sayar, Alperen; Son, Semen; Giriken, YenerThe successful applications of neuroscientific methods and artificial learning approaches have increased in applied fields such as economics, marketing, and finance in the last decade. In this study, a prediction model was developed using the output of optical neuroimaging (fNIRS) measurements from the prefrontal brain regions while 40 participants made decisions for 35 credit offers. The aim was to predict participants' responses to credit offers using artificial learning methods based on four metrics obtained over time from the optical neuroimaging system. The findings of the study indicate that the first 6 seconds (prior to the response entry) are particularly critical. While the performance rate in the developed prediction models is found to be higher, especially in tree-based algorithms, this paper includes a performance comparison of 5 models specifically.Article Citation - WoS: 10Citation - Scopus: 16The Hesfs for Higher Education Funding, Employment and Sustainability(Emerald Group Publishing Ltd., 2020-05-01) Son Turan, Semen; Son-Turan, SemenPurpose: The purpose of this paper is to develop a higher education funding and employment system that obviates barriers to sustainable development and helps engrain the notion of sustainability into the institutional framework. Design/methodology/approach: The “Higher Education Sustainability First System” (HESFS) is a conceptual model that builds upon ideas from previous literature. Its theoretical basis draws on a joint value creation framework from the stakeholder theory and business model perspectives. Findings: A holistic three-pillar approach that offers multiple value propositions is needed to engage the stakeholders to collaborate for the coherent functioning of the HESFS. This will enable the establishment of a viable innovative financial model and the institution of a sustainability-focused student employment program that are facilitated by a robust sustainable infrastructure. Several sustainable development goals may be furthered in the process. Research limitations/implications: The applicability of a part or entire HESFS depends on the characteristics of the higher education institution and the level of its maturity in a sustainable development process. Although its different constituents have been empirically validated in literature, the HESFS model could be applied in a case study to determine its potential feasibility. Practical implications: The HESFS may inspire policymakers, businesses and higher education institutions to forge alliances to devise innovative resources of funding and engage in employment partnerships that can lead to progress in sustainable development. It may particularly be useful for institutions in developing and less developed countries, where inequality and high youth unemployment rates prevail. Originality/value: By focusing on an under-researched topic through a multitheoretical perspective, this study contributes to theories pertaining to stakeholder engagement and business models. © 2020, Emerald Publishing Limited.Book Part Citation - Scopus: 13The Blockchain–sustainability Nexus: Can This New Technology Enhance Social, Environmental and Economic Sustainability?(Springer International Publishing, 2019) Son Turan, Semen; Son-Turan, SemenWith the rise and fall of the prominence of Bitcoin, blockchain technology,which provides public online ledgers used for the verification and recording oftransactions, has started to become the center of attention for diverse parties in theglobal financial system. This chapter explores the nature of blockchain and discusseshow it may contribute to, or obstruct, sustainability. To this end, first, blockchaintechnology is introduced. Next, a short discussion on sustainability is presented,including how it is defined, measured, reported, and understood in theoreticalframeworks. After that, the 2015 United Nations Sustainable Development Goalsare briefly explained. This is followed by a systematic literature review, whichhighlights the scarcity of literature linking blockchain to sustainability. Finally, theauthor offers her own reflections on the potential of blockchain to revolutionize thefinancial services industry and weighs up the pros and cons vis-a-vis sustainable development.Article X-Capm Revisited: the Institutional Extrapolative Capital Asset Pricing Model (i-X(Eurasian Publications, 2018) Son Turan, Semen; Kılıç, ErdemThis study constructs and tests a consumption-based asset pricing model in which someinvestors form beliefs about future price changes in the stock market by extrapolating past pricechanges, while other investors hold fully rational beliefs. The contribution of the present work isthe inclusion of institutional investor bias. As such it extends theory. But it also conductseconometric tests by using daily survey data on individual and institutional investors’ sentimenton the current economic situation and their future expectations. Empirical findings may implythat institutions’ sentiment reverts quicker to the equilibrium price than individual sentiment, atleast with regard to their beliefs on future economic outlook. If studied further with a biggerdataset, it may imply that institutional investors are closer to the rational-decision makingmechanism compared to individual investors. The theoretical framework rests on prospecttheory. The market studied is the US equity market, however findings and suggestions can beapplied to global markets and various financial instruments.Article Citation - WoS: 35Citation - Scopus: 48Sustainability Disclosure in Higher Education: a Comparative Analysis of Reports and Websites of Public and Private Universities in Turkey(Emerald Group Publishing Ltd., 2019-11-04) Son Turan, Semen; Lambrechts, Wim; Son-Turan, SemenPurpose : The purpose of this paper is to explain the extent and content of the sustainability disclosure of public and foundation (private but not-for-profit) universities in Turkey. Design/methodology/approach : Subsequent to a systematic literature review of six academic databases and the National Thesis Center, a content analysis using a combination of Global Reporting Initiative and campus assessment tools from previous studies is conducted on stand-alone sustainability reports and websites of a purposive sample of eight universities in Turkey. Findings : Infrequent and unsystematic sustainability practice done through websites seems to be more prevalent than formal reporting through international initiatives. Research and practice diverge by focusing on different sustainability indicators. Sustainability needs to be integrated into teaching and curriculum through university policies and regulations. Foundation universities show greater effort in sustainability reporting than public universities. Research limitations/implications : The research is limited by the availability of mostly self-reported, dispersed and unaudited data by foundation universities in addition to framework-imposed specificities. Furthermore, there is only one public university with a formal sustainability report in the sample.Practical implications : The findings offer suggestions for developing extra sustainability indicators and may assist local policy-makers and researchers in their efforts to improve sustainability reporting by local universities.Originality/value : This comprehensive research effort is one of the few studies from a non-Western country perspective and the only study on Turkey in relation to universities and sustainability reporting. Keywords : Citation Son-Turan, S. and Lambrechts, W. (2019), "Sustainability disclosureArticle Article Stakeholders in Equity-Based Crowdfunding: Respective Risks Over the Equity Crowdfunding Lifecycle(2015) Son Turan, SemenObjective. The purpose of this paper is to present a thorough research on the risk categoriesand specific risk factors that each immediate stakeholder faces over the equity crowdfundinglifecycle.Methodology. This study employs an exploratory approach, supported by current data tounderstand the global equity crowdfunding setting and the stakes for major players.Findings. Findings show that, although equity crowdfunding, can be a unique opportunityespecially for underdeveloped countries and SMEs who have difficulty obtaining fundingelsewhere, is also a potential peril for those who ignore or underestimate the overall andstand-alone risks that come along with each stage of the process. The findings haveimplications for all ventures seeking alternative financing venues, investors and equitycrowdsourcing platforms. Furthermore, they pinpoint potential areas of further investigationfor researchers and policy makers.Originality/Value. This study differentiates itself from the limited number of papers onequity crowdfunding, as a newly developing field of academic research, in that it underscoresfinancial, regulatory, operational, reputational and strategic risks from several perspectivesand offers recommendations on how these risks can be addressed.