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Permanent URI for this collectionhttps://hdl.handle.net/20.500.14288/3
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Publication Metadata only On the past, present, and future of the Diebold-Yilmaz approach to dynamic network connectedness(Elsevier Science Sa, 2023) Diebold, Francis X.; Department of Economics; Yılmaz, Kamil; Department of Economics; College of Administrative Sciences and EconomicsWe offer retrospective and prospective assessments of the Diebold-Yilmaz connected-ness research program, combined with personal recollections of its development. Its centerpiece in many respects is Diebold and Yilmaz (2014), around which our discussion is organized.Publication Metadata only On the network topology of variance decompositions: measuring the connectedness of financial firms (Reprinted from Journal of Econometrics, Vol 182, Issue 1, September 2014, Pages 119-134)(Elsevier Science Sa, 2023) Diebold, Francis X.; Department of Economics; Yılmaz, Kamil; Department of Economics; College of Administrative Sciences and EconomicsWe propose several connectedness measures built from pieces of variance decomposi-tions, and we argue that they provide natural and insightful measures of connectedness. We also show that variance decompositions define weighted, directed networks, so that our connectedness measures are intimately related to key measures of connectedness used in the network literature. Building on these insights, we track daily time-varying connectedness of major U.S. financial institutions' stock return volatilities in recent years, with emphasis on the financial crisis of 2007-2008.Publication Metadata only Capitalism, Jacobinism and international relations: revisiting Turkish modernity(Cambridge Univ Press, 2024) ; Selamet, Kadir; ; Graduate School of Social Sciences and Humanities;N/APublication Metadata only Losing Istanbul: Arab-Ottoman imperialists and the end of empire(Cambridge Univ Press, 2024) Minawi, Mostafa; Küçükaşcı, Ebrar Şahika; ; Graduate School of Social Sciences and Humanities;N/APublication Metadata only States of dispossession: violence and precarious coexistence in Southeast Turkey(Cambridge Univ Press, 2023) ; Sayın, Selin; ; Graduate School of Social Sciences and Humanities;N/APublication Metadata only Attitudes of medical students toward sexual minorities: a multicentric survey from the Medical Education without Discrimination Project(ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD, 2024) Bayramlar, Osman Faruk; Nalbant, Hacer; Yasin, Yesim; Mardin, Deniz; Karabey, Selma; Kayı, İlker; School of MedicineThis study, as a part of the 'Medical Education without Discrimination (MED) Project," focuses on investigating attitudes toward sexual minorities and demographics among Turkish medical students. In the needs assessment phase of MED Project, a survey covering demographics, sexual orientation, attitudes toward sexual minorities, and Index of Attitudes Toward Homosexuals by Hudson & Ricketts (6-point Likert) was conducted among 523 medical students of one public and two nonprofit private medical schools in Istanbul. Of the students, 4.2% declared themselves as non-heterosexual. The findings highlight that medical students are on the verge of homophobia (44th percentile). Homophobia was significantly higher among public university students, males, younger individuals, those who originated from underdeveloped settlements, those who grew up with mothers who did not graduate from university, those who considered themselves less happy, and those without LGBTI+ acquaintances. Of the respondents, 14.1% do not perceive LGBTI+ people as equals within the community, and 75.7% assert that they would conceal their own LGBTI+ identity if they were part of this community. This study highlights that the need for targeted interventions in medical education in line with the global commitment to reduce inequalities and promote inclusive health care.Publication Metadata only Bridging the Covid-19 data and the epidemiological model using the time-varying parameter SIRD model(Elsevier Sci Ltd, 2024) Şimşek, Yasin; Department of Economics; Çakmaklı, Cem; Department of Economics; College of Administrative Sciences and EconomicsThis paper extends the canonical model of epidemiology, the SIRD model, to allow for timevarying parameters for real-time measurement and prediction of the trajectory of the Covid-19 pandemic. Time variation in model parameters is captured using the score -driven modeling structure designed for the typical daily count data related to the pandemic. The resulting specification permits a flexible yet parsimonious model with a low computational cost. The model is extended to allow for unreported cases using a mixed -frequency setting. Results suggest that these cases' effects on the parameter estimates might be sizeable. Full sample results show that the flexible framework accurately captures the successive waves of the pandemic. A realtime exercise indicates that the proposed structure delivers timely and precise information on the pandemic's current stance. This superior performance, in turn, transforms into accurate predictions of the death cases and cases treated in Intensive Care Units (ICUs).Publication Metadata only Why does the combination of policy entrepreneur and institutional entrepreneur roles matter for the institutionalization of policy ideas?(Springer, 2021) Akgunay, Sinan; Department of International Relations; Bakır, Caner; Çoban, Mehmet Kerem; Faculty Member; Researcher; Department of International Relations; The Center for Research on Globalization, Peace, and Democratic Governance (GLODEM) / Küreselleşme, Barış ve Demokratik Yönetişim Araştırma Merkezi (GLODEM); College of Administrative Sciences and Economics; 108141; N/APublic administration, public policy, and political economy literatures are increasingly preoccupied with the role of agency in policy and institutional change, and the effects of institutions on the agency of individual actors. However, linkages between policy and institutional entrepreneurship in processes of institutionalization remain a black box. This article aims to fill this void. It contributes to our understanding of processes underlying the institutionalization of policy ideas in the public sector that have not been investigated adequately. Based on an exploratory case study of the introduction and institutionalization of macroprudential policies to contain macro-financial risks in Turkey, this article argues that policy and institutional entrepreneurship processes are inextricably intertwined and fundamental to the institutionalization of policy ideas: the institutionalization of new policy ideas that resolve conflicting institutional logics and facilitate cooperation and/or collaboration in inter-bureaucratic policy formulation and implementation is most likely when an individual agent with the requisite resources and capabilities builds coalitions through combining the policy and institutional entrepreneur roles while undertaking discursive and powering strategies.Publication Metadata only Evaluation of the effectiveness of telephone counseling intervention on early-stage breast cancer patients(Wiley-Blackwell, 2013) N/A; N/A; Işık, Işıl; Teaching Faculty; School of Nursing; 43705N/APublication Metadata only Bringing registration into models of vote overreporting(Oxford Univ Press, 2007) Fullerton, Andrew S.; Borch, Casey; Department of Sociology; Dixon, Jeffrey C.; Faculty Member; Department of Sociology; College of Social Sciences and Humanities; N/AVoting is a socially desirable act and a basic form of political participation in the United States. This social desirability sometimes leads respondents in surveys, such as the National Election Study (NES), to claim to have voted when they did not. The methodology of previous studies assumes that people only overreport voting and that the sample of potential overreporters (i.e., nonvalidated voters) is not systematically different from the sample of potential voters. In this research note, we explore several different ways of examining the determinants of overreporting at two different stages (registering and voting) and with a consideration for selection bias. Comparing the traditional probit model used in previous research with sequential and heckit probit models, we find that the determinants of overreporting registering and voting differ substantially. In addition, there is a significant selection effect at the registration stage of overreporting. We conclude with a discussion of contemporary implications for pre-election polling and the postelection analysis of survey data.