Birkan, Ayşe Özden
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Doç.Dr.
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01.01.06.01. Ekonomi Bölümü
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Sustainable Development Goals
1NO POVERTY
0
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2ZERO HUNGER
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3GOOD HEALTH AND WELL-BEING
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4QUALITY EDUCATION
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5GENDER EQUALITY
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6CLEAN WATER AND SANITATION
0
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7AFFORDABLE AND CLEAN ENERGY
0
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8DECENT WORK AND ECONOMIC GROWTH
1
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9INDUSTRY, INNOVATION AND INFRASTRUCTURE
3
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10REDUCED INEQUALITIES
2
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11SUSTAINABLE CITIES AND COMMUNITIES
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12RESPONSIBLE CONSUMPTION AND PRODUCTION
1
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13CLIMATE ACTION
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14LIFE BELOW WATER
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15LIFE ON LAND
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16PEACE, JUSTICE AND STRONG INSTITUTIONS
1
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17PARTNERSHIPS FOR THE GOALS
2
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Documents
7
Citations
195
h-index
4
Documents
5
Citations
141
Scholarly Output
14
Articles
7
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Supervised MSc Theses
6
Supervised PhD Theses
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WoS Citation Count
146
Scopus Citation Count
199
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0
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0
WoS Citations per Publication
10.43
Scopus Citations per Publication
14.21
Open Access Source
3
Supervised Theses
6
| Journal | Count |
|---|---|
| Applied Economics Letters | 1 |
| Borsa Istanbul Review | 1 |
| Capital Without Borders: Challenges to Development | 1 |
| Ekonomik Yaklaşım | 1 |
| International Journal of Financial Research | 1 |
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Article Citation - WoS: 135Citation - Scopus: 179ESG practices and corporate financial performance: Evidence from Borsa Istanbul(Borsa Istanbul Anonim Sirketi, 2022) Ebru E. Saygılı; Serafettin Arslan; Ayşe Özden Birkan; Birkan, Ayse Ozden; Arslan, Serafettin; Saygili, EbruThe purpose of this paper is to determine whether environmental social and governance (ESG) practices affect corporate financial performance (CFP) indicators at Turkish listed companies. The impact of ESG disclosures on the firm-level CFP of companies listed on the Borsa Istanbul Corporate Governance Index (XKURY) over the period 2007–2017 is investigated using the corporate governance principles of the Capital Markets Board and Global Reporting Initiative (GRI) environmental indicators. The contribution of this study is that it explores the influence of twenty independent ESG variables comprising company disclosures on CFP in an emerging market. The results of the study reveal a negative effect of environmental disclosures on CFP. Stakeholder involvement in management contributes to operational efficiency in the social dimension of ESG. Provisions related to shareholder rights and the board of directors has a positive impact on CFP in the governance dimension. © 2022 Elsevier B.V. All rights reserved.Article An indicator of monetary conditions for Turkey(2010) AYŞE ÖZDEN BİRKAN; Birkan, Ayşe ÖzdenBu çalismada Türkiye için 2003-2008 dönemi verileri ve vektör otoregresyon (VAR) yaklasimi kullanilarak bir parasal kosullar endeksi gelistirilmektedir. Endeksin agirliklari enflasyon oraninin kisa dönemli reel faiz ve Türk Lirasinin reel deger kazanma oraninda gerçeklesen bir standart sapmalik soklara verdigi genellestirilmis birikimli tepkiler esas alinarak olusturulmustur. Üretim ve enflasyonun faiz ve döviz kuruna gelen soklara verdigi tepki Türkiye ekonomisinin ilginç yapisal özelliklerini ortaya koymaktadir. Olusturulan endeksin yansittigi parasal kosullar enflasyonun sözü edilen dönemdeki hareketi ve açiklanan para politikasiyla tutarlidir.Article Citation - WoS: 2Citation - Scopus: 3Testing the balance of payments constrained growth model in a VECM framework: the cases of Brazil Korea Mexico and Turkey(ROUTLEDGE JOURNALS TAYLOR & FRANCIS LTD, 2022) Ayse Ozden Birkan; Birkan, Ayse OzdenThe aim of this study is to explore the empirical application of a previously unexplored procedure to systematically estimate and test the tenets of the balance of payments constrained growth (BOPCG) the model within a VECM framework. The three structural equations that constitute the BOPCG model are estimated as long run equilibrium relations using the Johansen cointegration analysis technique for Brazil Korea Mexico and Turkey over the 1980-2016 period. The BOPCG hypothesis is then tested in terms of non-linear coefficient restrictions on the cointegrating vectors. Hypotheses on the exogeneity of real exchange rate and the world income are also tested in terms of tests on the adjustment coefficients. Results provide evidence in favour of Thirlwall's Law for the cases of Brazil and Korea.Master Thesis Türkiye'de bölgesel gelir eşitsizliği mekânsal analizi(2025) Tuzcuoğlu, Fulya Ecem; Birkan, Ayşe ÖzdenGelir eşitsizliği bir ülke için büyük bir endişe kaynağıdır. Son yıllarda gelir eşitsizliği çoğu ülkede artmış ve Türkiye'de de büyük bir endişe kaynaği haline gelmiştir. Bölgesel farklılıklar gelir eşitsizliğinin incelenmesinde önemli olacaktır. Bu bağlamda, yapılan çalışmanın bu farklılıkların ve gelir eşitsizliğini etkileyen faktörlerin bölgelerde nasıl bir örüntü oluşturduğunu incelemek ve anlamak için gerekli olduğu düşünülmektedir. Bu tezde, mekansal ölçümü analiz eden bir araç olan GEODA ile gelir eşitsizliğini ölçmek için Türkiye'nin Gini katsayısı incelenmiştir. Mekansal analiz bölgesel kümelenmeleri hesaba katmaktadır; Türkiye'nin 26 bölgesinin Gini katsayısını NUTS- 2 düzeyinde incelenmiştir. 2014 yılından 2023 yılına kadar, bölgesel gelir eşitsizliğini etkileyebilecek faktörler, iki değişkenli verilerin analizi yöntemiyle incelenmiştir. Mekansal otoregresif model, bölgesel gelir eşitsizliği için uzamsal ilişkileri yakalamada en iyi sonucu vermiştir. Araştırma ve geliştirme giderlerinin gayri safhi yurtiçi hasıla içindeki payı, bölgesel gelir eşitsizliğini en çok azaltan faktör olmuştur. Anahtar Kelimeler: Geoda, gelir eşitsizliği, Nuts 2 düzeyi, mekansal analiz, Gini katsayısıArticle Citation - Scopus: 7Determinants of ICO investment decision: An exploratory factor analysis(Sciedu Press jst@sciedu.ca, 2020) Nurettin Ayarci; Ayşe Özden Birkan; Birkan, Ayse Ozden; Ayarci, NurettinAn Initial Coin Offering (ICO) is a funding mechanism used by projects to sell their crypto-token in exchange for Bitcoin Ether etc. It is the counterpart of the Initial Public Offering in the new digital currency economy. ICOs help projects to be funded in a short time with a high-profit margin. The primary purpose of this study is isolating the principal factors that affect the decision to invest in an ICO. A large array of potential signals consisting of promotion and marketing effects investor motivation founder team effects whitepaper and ICO specific factors are considered in an online survey and the responses are analyzed using Exploratory Factor Analysis. The results of the analysis reveal five composite principal factors that determine the decision to invest in an ICO. These five principal factors are the ICO whitepaper websites for finance news and ICO listings ICO project sector and founder ICO project team and social media. Our findings provide a perspective to both investor and ICO founders about which factors to prioritize when deciding to launch an ICO or to invest in one. © 2020 Elsevier B.V. All rights reserved.Master Thesis Finansal krizlerin belirleyicileri: Ampirik bir çalışma(2020) Mashhadı, Alı; Birkan, Ayşe ÖzdenBu çalışma 37 ülkeden oluşan ve 1990-2018 dönemini kapsayan bir panel veriseti kullanarak, finansal krizlerin belirleyicilerini incelemektedir. Kullanılan rastsal etkiler probit modeli göstermiştir ki döviz kuru, ev fiyatlarındaki yıllık değişim ve özel sektöre verilen banka kredileri gibi değişkenlerin etkileri bütün gruplar için ortak bir payda oluştururken enflasyon beklentleri, net portföy yatırımları, doğal kaynaklardan sağlanan gelir, bankacılık sektörü konsantrasyon oranı, hisse senedi piyasası kapitalizasyonu ve reel faiz oranı değişkenlerinin etkileri ülke grupları arasında farklılık göstermektedir. Dayanıklılık sınamaları ve logit modeli tahmini gibi yöntemlerle sağlaması yapılan tahmin ve sınama sonuçları döviz kurlarının krize etkileri ve finansal piyasalardaki asimetrik bilgi sorunlarının krize etkileri konusunda literatürde bulunan kuramları desteklemektedir. Ayrıca kayıtdışı ekonominin Gayri Safi Yurtiçi Hasıla'ya oranının da bir ülkenin finansal kriz yaşama olasılığı üzerine önemli bir etkisi olduğu ve bu etkinin farklı ülke grupları için istatistiksel olarak anlamlı olduğu gözlenmiştir.Master Thesis Karbondioksit ve sülfür dioksit emisyonlarının dinamik panel teknikleri kullanılarak modellenmesi: Çevresel Kuznets Eğrisi (ÇKE) örneği(2016) Yeşilçayir, Ebru; Birkan, Ayşe ÖzdenThis thesis investigated the relationship between per capita income and environmental degradation at the global level, using annual data on carbon dioxide (CO2) and sulfur dioxide (SO2) emissions. The specific objective was to estimate the environmental Kuznets curve (EKC) for two indicators of environmental quality and to establish whether the estimated relationships conform to the inverted U-shape and N-shape hypothesis. For the empirical investigation, the first econometric model was constructed for carbon dioxide emissions as a proxy for global warming and the second econometric model was constructed for sulfur dioxide emissions as a proxy for air pollution. Income, the square of income, the cube of income, energy efficiency, industry, coal and alternative (non-fossil) sources of electricity production as well as two different indexes of democracy were used as regressors in both models. In this thesis, the first econometric model was estimated for 119 nations from 1990 to 2011, while the second econometric model was estimated for 118 nations from 1990 to 2005. Both econometric models used the system Generalized Method of Moments (GMM) estimator in order to grasp cumulative environmental quality changes. Fixed/random effects estimators which are commonly preferred in previous panel estimations of static environmental Kuznets curve equations were also reported. The empirical results showed that the environmental Kuznets curve relationship differed depending on the type of the pollutants. More specifically, global pollutants exhibited the U-shaped and the inverted N-shaped environmental Kuznets curve, whereas local pollutants generally followed the 'conventional' environmental Kuznets curve. Thus, it was concluded that environmental policy should consider the different characteristics of global and local pollutants.Article Citation - WoS: 4Citation - Scopus: 4The geography of financial intermediation in Turkey: 1988–2013(Springer Verlag service@springer.de, 2016) Ayşe Özden Birkan; Serpil Kahraman; Birkan, Ayse Ozden; Akdogu, Serpil KahramanThis study aims to provide an analysis of the evolution of regional financial inequalities in Turkey over the 1988–2013 period. The theoretical premise of the study is the Keynesian view that the nature and the level of development of the banking system and the geography of financial intermediation are imperative to the understanding of regional economic disparities. Exploratory Spatial Data Analysis tools used in the analysis indicate the presence of a statistically significant non-random spatial pattern at the provincial NUTS 3 level for the 2006–2013 period. LISA cluster maps reveal that the southeastern provinces of the country constitute a hot spot of credit activity in this period. Moreover the evolution of financial inequality indices suggests that this clustering has led to a reduction in regional financial disparities across the country over the period in question. The results of econometric conditional convergence analysis suggest regional beta-convergence in terms of Gross Value Added per Capita but no statistically significant link between beta-convergence and the reduction in financial disparities. © 2016 Elsevier B.V. All rights reserved.Master Thesis ICO yatırım sinyalleri(2019) Ayarcı, Nurettin; Birkan, Ayşe ÖzdenKripto para arzı (ICO), projelerin kripto paraların Bitcoin ya da ether karşılığı satılarak fonlanmasını saglayan bir yatırım yapısıdır. IPO fonlama yapısının digital para ekonomisinde karşılığı olarak tanımlanabilir. ICO popüler bir konu haline geldikçe projelerin kısa zamanlı gerçekleşmesini sağlaması ve yüksek kar oranı vaat etmesi sebebiyle yatırımcıların ilgisini çekmektedir. Bu çalışmanın ana amacı ICO sürecinde yatırımcı kararına etki eden faktörlerin analiz edilmesidir. Bu amacla pazarlama kanalları (sosyal medya, reklam, topluluklar, elektronik posta ve etki sahipleri), tanıtım belgesi (yol haritası, teknik yapı, takim boyutu, danışmanlar), yatırımcı motivasyonu (uzun vadeli, sektörel ilgi, Pump and Dump şemalarında yer almak) gibi faktörleri içeren çok sayıda potansiyel sinyali listeledik ve araştırma katılımcılarına her faktör konusunda fikirlerini sorduk.Book Part Alternative measures of currency and asset substitution: The case of Turkey(Anthem Press, 2010) Ayşe Özden Birkan; Birkan, A. ÖzdenLike many developing countries that liberalized their capital account Turkey has been at the mercy of short term capital inflows accompanied by a continuous real appreciation of the domestic currency since 1989. Open foreign exchange positions and increasing foreign exchange related assets in residents’ portfolios have been the inevitable side affect. The recent inflation targeting policy is claimed to have reversed this trend. However the currency substitution measure developed in this study suggests an alternative interpretation of the situation. Although the share of TL denominated assets in total monetary assets has been increasing relative to the share of foreign currency related assets the liquidity services of TL denominated assets is in fact not increasing. In this study distinct measures of asset substitution and currency substitution as opposed to the generic FCD/M2Y are developed and the different degrees of liquidity provided by alternative monetary assets are distinctly measured. These AS and CS measures follow the conventional intuition as to their driving factors and suggest the existence of hysteresis in currency substitution in Turkey. From a policy standpoint this provides evidence that targeting and decreasing the inflation rate alone may not be sufficient to overcome the structural problems of the economy that have been in the making for decades. © 2015 Elsevier B.V. All rights reserved.
