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Yazar Departmanı : Yeditepe University ... ✕
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Erişime Açık

Forecasting realized volatility of BIST indices with har-type models

Köksal, Emre Ahmet

In this paper, realized volatility of a selection of BIST Indices are forecasted with Heterogeneous Autoregressive Model (HAR) and its variations. For this purpose, ticks between 2001 and 2021 are used to generate 5-minute returns, which formed the basis for calculations of realized volatility and other realized measures. In the study, rolling windows are utilized for forecasting the volatility of one day ahead. These predictions are then compared to the actual realized volatilities. The study provides a thorough comparison of HAR-type models, and emphasizes the importance of underlying time s ...Daha fazlası

Preprint 2023 Yeditepe University Academic and Open Access Information System 52 Görüntülenme
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Gender representation in television advertising and stereotypes on women in advertisements

Üçkaleler, Beyza

In addition to many other features, people appear in television advertisements with their gender characteristics. The way in which biological and social gender is used in visual designs varies according to the existing cultural and social characteristics. The characteristics of being the focus of domestic life, motherhood, companionship, housework, beauty and sexuality, which society imposes on women and femininity, have been changing in recent years, and this change also makes itself felt in the field of visual design. The new forms of existence of women in the society are also reflected in t ...Daha fazlası

Preprint 2023 Yeditepe University Academic and Open Access Information System 92 Görüntülenme
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An analysis of the impact of social media on rational voting behavior of generation Z

Haser, Serkan

Developing Information and Communication Technologies have significantly changed lifestyle and many areas of life. As the new media has increased effect in intelligence, content producing etc., and network systems have become an integral part of life, we are witnessing accelerated flow of information. Individuals have started to quickly access all kinds of information their countries and across the world. All these developments are inevitably reflected in political life. As a matter of fact, political actors inevitably need to update and innovate their methods of reaching Generation Z. In part ...Daha fazlası

Preprint 2024 Yeditepe University Academic and Open Access Information System 62 Görüntülenme
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Understanding brands’ sustainability communications in social media: How the source of communication influences consumers’ responses

Oran, Helin Ezgi

With increasing environmental concerns and a shift towards sustainable consumption, brands are employing social media as a powerful platform to communicate their sustainability initiatives. This study investigates the effect of sustainability communication on Instagram on consumer perceptions with a specific focus on nonluxury hygiene products. Drawing from an extensive literature review, this research explores how consumer perceptions of brand efforts for environmental sustainability affect brand attitude, word-of-mouth (WOM), brand engagement, and purchase intentions. Additionally, it exami ...Daha fazlası

Preprint 2024 Yeditepe University Academic and Open Access Information System 28 Görüntülenme
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Large-scale forecasting of large fluctuations using wavelet coherence and multifractal behavior and developing wavelet coherence for multiple time series

Oygur, Tunç

Shocks, jumps, booms, and busts are typical large fluctuation markers that appear in crisis. Identifying financial crises and estimating leading indicators with strong relations during crisis periods have an essential role in the literature. This thesis examines the dynamic co-movements of leading indicators' multifractal features to identify financial crises due to large fluctuations. The detected dynamic relationships predict leading indicators with scale-by-scale analysis and make large-scale predictions better than challenger models. As a natural result of these studies, the n-dimensional ...Daha fazlası

Preprint 2022 Yeditepe University Academic and Open Access Information System 18 Görüntülenme
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An exploratory study of a Turkish sample of persons with hoarding behavior

Ekiz, Saliha Ceren

Hoarding research in Turkey is still in an early stage, where both quantitative and qualitative research is needed to understand hoarding in the Turkish context. This is an exploratory qualitative study of a Turkish sample of individuals who exhibit compulsive hoarding behavior. The study consists of two phases. Firstly, an online hoarding screening survey (N=357) was conducted using three diagnostic tools (i.e., Saving Inventory-Revised, Hoarding Rating Scale, and Clutter Image Rating). Secondly, the participants (n=13) who met the criteria for hoarding disorder were invited to an online inte ...Daha fazlası

Preprint 2024 Yeditepe University Academic and Open Access Information System 76 Görüntülenme
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The mediating role of organizational cynicism perceived by employees on the effect of applied managerial power sources on the intention to quit

Alıcı, Özlem

In this study, it was tried to determine the mediating role of organizational cynicism perceptions of employees in the effect of managerial power sources applied by five-star hotel management managers on their intention to leave. The research universe of the study is the five-star hotel businesses in Istanbul. The sample of the research consists of 272 hotel employees determined by random sampling method among the employees in these enterprises, and the survey method was used in the research. Data were collected by face-to- face and online survey method. The data obtained as a result of the re ...Daha fazlası

Preprint 2023 Yeditepe University Academic and Open Access Information System 67 Görüntülenme
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A research on does management accounting in the construction industry need enterprise resource planning

Töre Doğruarar, Özlem

In the business world of the century we are living in, competition has become quite intense with the effect of globalization. For this purpose; the enterprises started to adopt the "Kaizen" methodology, which means continuous betterment or continuous improvement. Businesses that aspire to be successful and survive for a long time in this competitive environment have to use their resources most efficiently, specialize by gaining experience in their activities, and make strategic planning for the future. Information, being a strategic power, is the most important of these resources. If we consid ...Daha fazlası

Preprint 2023 Yeditepe University Academic and Open Access Information System 85 Görüntülenme
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An anthropological approach to the status of women in circassian culture: the case of the village of Soğucak

Türker, Berika

This qualitative study aims to explore the status of women in Circassian Culture through the lens of Feminist Anthropology. Soğucak village, one of the Circassian villages in Yalova, was chosen as a sample in the research. The research is prepared using qualitative research techniques, participant observation, and in-depth interviews. The field interview was conducted between 17 December 2022 and 16 July 2023 with 25 female and nine male participants. Participants are determined by the snowball sampling technique. As a result of the study, it is revealed that housework, especially cooking, and ...Daha fazlası

Preprint 2024 Yeditepe University Academic and Open Access Information System 64 Görüntülenme
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Transformation of cyberpunk films in hollywood remakes: a comparative historical analysis

Aktaş İlcik, Ece

The last decade has seen an increase in Hollywood productions of cyberpunk films. These films, designed as remakes or sequels, appeal to both old fans of the cult original films and new audiences. The subject of this research is how the remakes, which aim to guarantee the box office undergo changes and how they fit into the system compared to the originals. In the research, it has been attempted to reveal how these change narratives have been integrated into current policies and the system compared to the originals, and to determine and show in which contexts this transformation of the remakes ...Daha fazlası

Preprint 2023 Yeditepe University Academic and Open Access Information System 48 Görüntülenme
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The mediating role of psychological capital in the relationship between agile leadership and employee intrapreneurship: An empirical study in Turkey

Nurdağ, Veysel Karani

This research aims to undertake an extensive investigation into the correlation among agile leadership, employee intrapreneurship, and psychological capital. By examining the impact of psychological capital on employee intrapreneurship, this study seeks to make a valuable contribution to the academic literature.While there is an increasing interest in the concepts of agile leadership and employee intrapreneurship, there is a lack of comprehensive research exploring their relationship with psychological capital. The suggested study will employ an interdisciplinary approach, combining the pertin ...Daha fazlası

Preprint 2024 Yeditepe University Academic and Open Access Information System 63 Görüntülenme
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The mediating role of self-objectification, self-disgust, and selfcompassion in the relationship between sexual objectification and dissociation

Işık, Aysu

In interpersonal interactions, women can be subjected to sexual objectification, discrimination, and sexual, verbal, or physical harassment. Sexual objectification experiences in everyday life have a hidden trauma function even though there is no overt trauma present. As women frequently encounter such experiences, psychological well-being is negatively affected, and some effects of trauma, such as dissociative experiences, are regularly observed. The purpose of this study was to examine the mediating roles of adult women’s experiences of self-objectification, self-disgust, and self-compassion ...Daha fazlası

Preprint 2024 Yeditepe University Academic and Open Access Information System 35 Görüntülenme
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