Makale Koleksiyonu

Bu koleksiyon için kalıcı URI

https://hdl.handle.net/20.500.12451/4

Listeleniyor 1 - 20 / 167

AI Impacts, Concerns, and Perspectives in the Global South A Thought Leadership Round Table
(Higher School of Economics, 2024) Das, Arindam; Muschert, Glenn; Dutta, Mohan J.; Aytaç, Muhammed Bilgehan; Tripathi, Priyanka; Khare, Apoorv; Ray, Subhasis
In this thought leadership roundtable, the editors of the special issue, convened a critical dialogue between leading scholars in the fields of Sociology, Critical Communication Studies, Cultural Studies, Critical Management Studies, and Sustainability Studies to explore the challenges that Global South navigates in its adoption of AI. The conversation probes the power disparities between the Global North and the Global South narratives of AI and look forward to alternative forms of AI and AI Management in the Global South scenario. Highly critical and cautious of enthusiastic adaptations of AI in the Global South, the discussants prioritize the issues of Human Rights, ethics, equity, inclusivity, and resilience for the historically marginalized communities of the region.
Altın ve petrol fiyatlarının Borsa İstanbul’a etkisi
(Marmara Üniversitesi, 2024) Altın, Hakan
Bu çalışmada, Altın ve Petrol fiyatlarının Borsa İstanbul’a etkisi incelenmiştir. Bu çerçevede, Etki- Tepki Analizi, Varyans Ayrıştırması ve Johansen Kointegrasyon yaklaşımları kullanılmıştır. Üç önemli bulgu elde edilmiştir. Birincisi, petrol fiyatları ile Borsa İstanbul arasında negatif yönlü bir ilişki vardır. İkincisi, altın fiyatları ile Borsa İstanbul arasında pozitif yönlü bir ilişki vardır. Üçüncüsü, petrol ve altın fiyatları ile borsalar arasındaki ilişkisizliktir. Bu ilişkisizlik, Borsa İstanbul’da geleceğe ilişkin fiyat hareketlerinin petrol ve altın fiyatlarından bağımsız olduğunu göstermektedir. Bu üç bulgu bir arada düşünüldüğünde çoğu piyasa için petrol ve altın fiyatları ile borsaların hisse senedi getirileri arasında bir eşbütünleşme ilişkisi olduğu sonucuna ulaşılır. Ancak, ilişkinin gücü ve yönü hakkında karma sonuçlar vardır. Bu bulgu, Borsa İstanbul içinde geçerlidir. Ayrıca, petrol fiyatlarındaki artışın hisse senedi fiyatlarına etkisi, bulundukları ülke ve coğrafyadan değişebileceği gibi sektörden sektöre doğru da değişiklik gösterir.
İşletme ve yönetim alanlarına yönelik stratejik pazarlamaya ilişkin bibliyometri/sosyal ağ analizi
(Kenan ÇELİK, 2024) Çelik, Resul; Uslu Divanoğlu, Sevilay
Bu çalışmanın amacı “stratejik pazarlama” üzerine yayımlanmış makalelerin bibliyometri analizi ile incelenmesinin yapılarak, bu alanda takip edilen yayın, atıf ilişkilerinin ve eğilimlerinin belirlenmesi ve değerlendirilmesidir. Ayrıca, yazar, kaynak, yayın, ülke ve kurum bazında istatistiksel bilgiler sunularak bu alanda araştırma yapan bilim insanlarına katkı sağlamak ve kullanılabilecek veriler üretmek amaçlanmaktadır. Bu kapsamda, stratejik pazarlama üzerine 1980-2023 yılları arasını kapsayacak şekilde WoS veri tabanında yayınlanmakta olan 486 makale R biblioshiny paket programı aracılığı ile analiz edilmiştir. Analiz sonuçlarına göre 1040 yazar, 183 farklı dergide “stratejik pazarlama” kavramını araştırmalarında konu edinmiştir. Ayrıca yıllık ortalama 7.34 yayın yapılmış ve bu yayınlara makale başına yıllık 28.86 atıf yapılmıştır. Konu alanı kapsamında en çok yayın yapan yazar Brooksbank R (n=6) olmuştur. 45 yayın ile en çok Journal of Strategic Marketing dergisinde yayın yayımlanmıştır. Üniversite bağlamında en fazla yayın Univ Ulster (n=17)’de yapılmıştır. Ülkeler bağlamında en fazla yayın Amerika Birleşik Devletleri’nde (n=114) gerçekleşmiştir. Analiz sonuçları, hem okuyucular hem de araştırmacılar açısından yapılacak olan çalışmalarda bir rehber olabilir.
The impact of extreme weather events on the S&P 500 return index
(Taylor and Francis Ltd., 2024) Altın, Hakan
This study examines the relationship between extreme weather conditions and the S&P500 return index, representing the U.S. stock market. The literature review and analysis show extreme weather events can impact the S&P500 return index. This effect is observed in two ways. First, extreme weather events create a market anomaly in the U.S. stock market, indicating that prices move in a way that cannot be explained by a rational model. Second, extreme weather events create financial uncertainty and have a negative impact on firms’ future cash flows. These findings suggest that investors and financial markets should be more cautious about extreme weather events. In addition, the impact of extreme weather on the U.S. stock market is weak. This can be explained in two ways. First, extreme weather events are predictable and seasonally recurring. Second, the American stock market is close to the efficient market hypothesis.
Investigating everyday sadistic consumption within dark tetrad
(Academic Press Inc., 2024) Aytaç, Muhammed Bilgehan
An experimental study on a non-WEIRD sample (N = 337; Turkish consumers) was conducted on how the traces of sadism can be empirically found in daily consumption behaviors. Intention to visit a tourist destination in which a cruel story presented for the experimental group (vs. control group) analyzed. It is found that sadism initially negatively predicts the intention to visit when controlling for other members of the dark tetrad; however, when a cruel story related to the destination is presented, this negative effect disappears. Further, when participants were asked to create a memoir about the destination, sadism predicted the intention to add the cruel story about the destination and share the memoir with others when controlling other members of the dark tetrad.
The impact of energy efficiency and renewable energy consumption on carbon emissions in G7 countries
(Taylor and Francis Ltd., 2024) Altın, Hakan
This study analyzes the impact of energy efficiency and renewable energy use on carbon emissions in G7 countries. The period examined covers the years 1971–2023. There are two important results. The first is the cointegration relationship between the variables. Accordingly, there is a long-run cointegration relationship between energy efficiency, renewable energy use and carbon emissions. The second is the direction and strength of this long-run relationship. When energy efficiency increases, carbon emissions decrease. This result is consistent with general expectations. On the other hand, there is a positive relationship between renewable energy consumption and carbon emissions. This result is not consistent with general expectations. The existence of a positive relationship between renewable energy consumption and carbon emissions is an issue that needs to be discussed.
The impact of dividend payout policies on real estate market diversification
(John Wiley and Sons Ltd, 2024) İlbasmış, Metin; Gronwald, Marc; Zhao, Yuan
An asymmetric DCC – GJR – GARCH model is applied to the Turkish and US REIT markets in order to estimate the time-varying correlations between the REIT and stock markets. Using these estimated correlations, we investigate the impact of dividend payouts on the diversification potential of REITs for stock market investors. Our choice of the Turkish REIT market is based on its unique REIT dividend policy, while US data provide a benchmark for comparison. This study has a number of motivations and contributions that make it a worthwhile undertaking. First, we document that REIT dividend policy is related to the correlation between REIT and stock markets. Dividend paying REITs have lower correlations with stock markets, which makes the REIT market a viable portfolio diversifier. Second, we confirm that REITs and stock prices cointegrated more closely due to the 2008 global financial crisis. We additionally document that a similar effect was also present in the correlation during the global Covid-19 pandemic crisis. It appears that REIT and stock markets become more correlated during times of financial turmoil and diversification opportunities are diminished. Finally, we document that there is a long-term trend in the time-varying correlations between REIT and stock markets. Türkiye has been experiencing a negative trend in this regard, while the US has been experiencing a positive trend.
A comparison of forecasting accuracy between two dynamic conditional correlation (DCC) models
(H. Mustafa PAKSOY, 2024) İlbasmış, Metin
This study compares two commonly used DCC-family models to predict the linkage between the US equity and REIT markets within a global minimum-variance portfolio. Equity and REIT portfolios are constructed using variance-covariance matrices, which represent forward-looking covariance information. These matrices are constructed out-of-sample with ex-ante forecasting. By assessing the predictive precision of each model, the study aims to determine which one produces the lowest forecasting errors and performs better economically. According to a statistical comparison, ex-ante correlation forecasts based on the Asymmetric DCC model were more accurate than those based on the standard DCC model. An empirical comparison of the economic performance of these two models in a dynamic portfolio allocation framework reveals that, despite its complexity, the Asymmetric DCC model exhibits similar economic performance characteristics to the standard DCC model. Despite the lack of emphasis on the economic overperformance of the Asymmetric DCC model, investors who recalibrate their portfolios weekly will benefit from reduced forecast errors and the ability to create more efficient portfolios by using an asymmetric model instead of a standard model.
Multi-Objective De Novo Programming with Type-2 Fuzzy Objective for Optimal System Design
(Bahadır Fatih YILDIRIM, 2023) Umarusman, Nurullah
De Novo Programming, which is also known as Optimal System Design, regulates the resource amount of constraints depending upon the budget. Mostly, this process is managed using traditional methods, fuzzy methods and hybrid methods. When considered from this point of view, there is no certain method for the solution of De Novo Programming problems. An approach for solving the Multi-Objective De Novo Programming has been recommended using Type-2 Fuzzy Sets in this research. Without exceeding the budget in the recommended approach, Type-2 membership function for each objective function has been defined applying positive and negative ideal solutions. The solution phase of this approach, called Multi-Objective De Novo Programming with Type-2 Fuzzy Objective, has been shown step by step on the illustrative problem. Then, this illustrative problem has been solved with regards to five different approaches in the literature and the results have been compared.
Borsa İstanbul’da ilk halka arzların CRITIC tabanlı OCRA ve COPRAS yöntemleri ile analizi
(Afyon Kocatepe Üniversitesi, 2023) Altın, Hakan
Çalışmanın temel amacı, ilk halka arzlarda şirketlerin finansal rekabet gücünün ölçümü için Operational Competitiveness Rating Analysis (OCRA) ve Complex Proportional ASsessment (COPRAS) yöntemlerinin önerilmesidir. Bunun için ilk aşamada, Borsa İstanbul’da 2021 yılında ilk kez halka arz edilen şirketlerin OCRA yöntemine göre finansal rekabet güçleri hesaplanmıştır. Daha sonra, elde edilen bulguların doğruluğunun bir kanıtı olarak COPRAS yöntemine göre hesaplanmış bulgular ile karşılaştırılmıştır. Bu hesaplamalar için 19 alternatif şirket ve genel kabul görmüş 10 kriter kullanılmıştır. Ayrıca, kriterlerin önem ağırlıklarının belirlenmesi konusunda objektif bir değerlendirme ölçütü olan Criteria Importance Through Intercriteria Correlation (CRITIC) yöntemi kullanılmıştır. Yöntemlerden elde edilen sıralama skorlarının arasındaki ilişki spearman sıra korelasyonu ile incelenmiştir. Buna göre, iki yöntemin sıralama skorları arasında bir sıralama yapılmadan önce yüzde 74,20 oranında pozitif yönlü kuvvetli bir ilişki vardır. Buna ilaveten, skorlar arasında büyükten küçüğe sıralama yapıldıktan sonra pozitif yönlü mutlak bir sıra korelasyon ilişki yaşanmaktadır. Elde edilen sonuçlar, istatistiksel olarak anlamlıdır.
Child images affect sports fans’ prosociality and aggression
(Elsevier, 2024) Aytaç, Muhammed Bilgehan; Bilir, Hüsnü
This study explores the effect of child images in advertisements on financial support provided by team fans-including the intention to buy licensed club products-and reported aggression toward rival team fans. An online experiment was conducted on Turkey's three largest rival club fans (Fenerbahce, Galatasaray, and Bes,iktas,). Used visual materials were derived from Football (Study 1) and Basketball (Study 2). Fans (N = 496) exposed to the appeals with child images showed a higher intention to support their team financially and buy licensed club products; however, the stated aggression toward rival club fans did not differ. A follow-up experimental study (N = 132) was conducted on Fenerbahce fans to retest this insignificant effect, in which fans' state aggression is increased through a motivation video. It is concluded that this approach was only effective on aggression for the fans whose team identification was significantly higher. Findings are discussed within the kin selection theory and kindchenschema cuteness concept.
Does wealth bring happiness?
(Cogent OA, 2023) Altın, Hakan
The main purpose of this study is to determine the relationship between wealth and happiness. The study, which uses the 2023 World Happiness Report, uses data from 74 countries. For this purpose, three static and two dynamic models are estimated in a panel data environment. According to all three models, wealth is a factor of happiness. However, happiness cannot be explained by a single wealth factor. Wealth is the fourth-factor explaining happiness. It is seen that the effect of wealth on happiness is limited. There are other important factors affecting happiness. What is certain is that there is a relationship between wealth and happiness. The strength of this relationship is different for different countries and different cultures. In addition, different benchmarks and different research methods lead to different results. The first task for governments, companies and individuals is identifying the factors explaining happiness. The second is to develop policies related to these factors. The third is to achieve social consensus. In conclusion, there is a need for more research on the relationship between wealth and happiness. Existing studies provide important information to the parties involved in understanding this relationship.
Steve Jobs ve Tim Cook’un liderlik yaklaşımları üzerine bir inceleme
(Niğde Ömer Halisdemir Üniversitesi, 2023) İşler, Fatma; Seçkin, Zeliha
Dijitalleşme, örgütleri alışılmışın dışında yeni bir rekabet ortamıyla sınamaktadır. Bu ortamda örgütler hayatta kalabilmek için; yaratıcı düşünme ve yenilikçi fırsatları elde etmeye çalışmaktadırlar. Bunun yolu, örgüt liderleri ve her seviyesindeki çalışanların yenilikçi tutum ve davranışları benimsemelerinden geçmektedir. Liderlik faktörleri hem çalışanlara hem de örgütlere kültürel, çevresel ve bireysel bakış açıları sağlamaktadır. Liderliğe yönelik yapılan çalışmalar ise, örgütsel performansı önemli ölçüde iyileştirmenin etkili yolunun anlaşılmasına katkıda bulunmaktadır. Bu çalışmada öncelikle liderlik ve liderlik yaklaşımları kavramsal açıdan ele alınmıştır. Bu doğrultuda, dünyanın en değerli şirketlerinden birisi olan Apple’ın kurucu ortağı olan Steve Jobs’un ve mevcut CEO’su Tim Cook’un liderlik özellikleri incelenmiş; literatürdeki çalışmalar temelinde, Steve Jobs’un daha çok girişimci ve dönüşümcü liderlik özelliklerini taşıdığı; Tim Cook’un ise etkileşimci ve vizyoner liderlik özelliklerine daha yatkın olduğu değerlendirilmiştir.
İş Becerikliliği ve İşe Tutulma Arasındaki İlişkide Politik Yetinin Düzenleyici Rolünün İncelenmesi
(2023) İçerli, Leyla; Bilen, Gül
Bu çalışmanın amacı, iş becerikliliği ve işe tutulma arasındaki ilişkide politik yetinin düzenleyici etkisini incelemektir. Rekabetin giderek arttığı günümüzde örgütlerin, insan kaynakları planlamasında çalışanların iş becerikliliği, işe tutulmaları ve politik yeti düzeyleri önemli faktörler olarak öne çıkmaktadır. İş becerikliliği, bireylerin görevini yerine getirme ve işinde başarılı olabilme yeteneğidir. Bu beceriklilik, bireyin teknik bilgi ve deneyiminin yanı sıra iletişim ve problem çözme gibi genel becerileri ve ayrıca öğrenme ve uyum yeteneği ile ilgilidir. İş becerikliliği, bireylerin performansı, verimliliği, bağlılığı ve iş tatmini gibi kavramlar üzerinde doğrudan etkili olduğu için önemlidir. Örgütün başarısı üzerinde etkili olan diğer bir faktör olan işe tutulma kavramı ise iş becerikliliği gibi kişilik özellikleri, beceriklilik ve motivasyon gibi kavramlara bağlıdır. Ayrıca, örgütteki politikalar işe tutulma sürecinde rol oynayabilir; örgüt içi çekişmeler veya bireysel bağlantılar örgütü etkileyebilir. Bireylerin kariyer gelişimleri ve terfi ilerlemesi bakımından önemli kavramlardan biri olan politik yeti ise, bireyin örgütteki sosyal ilişkiler kurabilme, güç kazanabilmesi ve diğer bireyleri etkileyebilme yeteneğidir. Çalışma yaşamında, başarılı olabilmek iş becerikliliği ve işe tutulma kadar, çalışma ortamında etkili ilişkiler kurup yönetebilme ve sosyal ağları etkili bir şekilde kullanabilme yeteneği ile ifade edilen politik yetiye de bağlıdır. Bu çalışma kapsamında iş becerikliliği, işe tutulma ve politik yeti kavramlarının birbirleriyle nasıl ilişkili olduğunun anlaşılmasının, hem örgütler hem de bireyler açısından önemli bir araştırma konusu olduğu düşünülmektedir. Araştırmanın örneklemi, 2022-2023 eğitim öğretim yılında Aksaray Üniversitesi Sosyal Bilimler Enstitüsü’nde öğrenim gören ve kamu sektöründe çalışan 222 lisansüstü öğrenciden oluşmaktadır. Alan yazın incelendiğinde, iş becerikliliği ve işe tutulma arasındaki ilişkiyi araştıran az sayıda çalışma olsa da bu ilişkide politik yetinin düzenleyici etkisinin ele alındığı bir çalışmaya ise rastlanmamıştır. Araştırma analizlerinde SPSS 26, AMOS 24 ve PROCESS Macro V4.1 programları kullanılmıştır. Araştırma bulgularına göre katılımcıların iş becerikliliği ve iş becerikliliğinin alt boyutları olan görev, bilişsel ve ilişkisel beceriklilik alt boyutları ile işe tutulma arasında pozitif ve anlamlı ilişkiler tespit edilmiştir. Ayrıca iş becerikliliği ile işe tutulma arasındaki ilişkide politik yetinin düzenleyici etkisinin olduğu sonucuna ulaşılmıştır. Bu çalışma kapsamında öncelikli olarak iş becerikliliği, işe tutulma ve politik yeti ile ilgili alan yazında var olan çalışmalar incelenmiş ve bu bilgilere dayanılarak uygulamalı bir çalışma oluşturularak bu konuda alan yazınına katkıda bulunmak amaçlanmıştır.
Hygiene anxiety and brand love of consumers: lessons from Covid-19 pandemic
(Kafkas Üniversitesi, 2023) Aytaç, Muhammed Bilgehan; Akın, Eyüp; Özal, Halit
The current study analyzed the hygiene anxiety of consumers within the context of the COVID-19 pandemic. Hygiene anxiety means the state of being worried about the cleanliness of purchased or to-be-purchased products/services that may cause illness. It is hypothesized that the hygiene anxiety experienced by consumers with strong emotional bonds with their brands - consumers who love the brand - would not reduce their purchasing intentions. In the first study, unexpectedly, it was found that the purchase intention of consumers with higher brand love significantly decreased when their hygiene anxiety was triggered. In the second study, what can reduce the hygiene anxiety of consumers is qualitatively inquired. Direct and indirect anxiolytic efforts were discovered. Indirect efforts are the brand's hygienic image, brand trust, and country of origin. Direct efforts are categorized under a hygienic 3P (product, promotion, and place) concept inspired by the classical marketing mix (4P).
Financial competitiveness of companies operating in the air transportation sector in Borsa Istanbul
(Marmara Üniversitesi, 2023) Altın, Hakan
The main objective of this study is to evaluate the financial competitiveness of companies operating in the air transportation sector in Borsa, Istanbul. Three companies are operating in the air transportation sector in Borsa Istanbul. Generally accepted financial ratios were used to determine the financial competitiveness of these companies. The period analyzed in the study using quarterly balance sheet periods is between 06/2019 and 03/2023. The number of periods is sixteen. On the other hand, balance sheet periods in which each company announced a loss were excluded from the analysis. The implementation process of the study consists of three stages. First, the OCRA method is used to determine the financial competitiveness of companies. Second, the findings obtained are compared with the ARAS method. Finally, the statistical significance of the results obtained from the two methods is tested with Spearman rank correlation. The CRITIC method, which is based on the standard deviation of each criterion and its relationship with other criteria, was used in the weighting process. The study results provide important information about airlines' liquidity, managerial behavior, profitability and market capitalization. This information interests all market participants who can help them make investment decisions.
Digitalization in Healthcare - Mobile Health (M-Health) Applications
(Aksaray Üniversitesi 2023 Aksaray Üniversitesi İktisadi ve İdari Bilimler Fakültesi Dergisi 15 2 2687-3427, 2023) Eşiyok, Arzu; Uslu Divanoğlu, Sevilay; Çelik, Resul
Nowadays, the rapid and effective delivery of health services is a very important issue. The integration of health services into technology-based systems has ensured the integration of the health field with an innovative style. With the development of technology and the diversification of technological tools, important steps have been taken in the digitalization of health services. These steps are taken for the digitalization of health services offer great opportunities for the health sector. The fact that health institutions follow the digitalization process closely and adapt quickly to this process has brought many advantages. This process provides great convenience in terms of providing better health services for both individuals who want to benefit from health services and all other stakeholders, as well as health personnel working in private or public institutions. Moreover, the concept of digital health, which has gained importance with the digitalization of health services, has many applications in itself. These are wearable technologies, virtual reality technologies, tele-medicine, e-health, 3d printers and m-health applications. Among these applications, mobile health technology makes a significant contribution to the delivery of health services. İndividuals witness new developments in technology day by day and adapt easily to these developments. İncreasing demand for smartphones/devices is a result of these developments. Therefore, mobile health applications that enable remote access and can be easily downloaded to smart devices are actively used by many users. İt is possible to say that mobile health applications have positive effects as well as negative effects, especially on privacy and trust. Examples of these mobile health applications developed by the Turkey Ministry of Health are applications such as “Hayat Eve Sigar”, “Korona Onlem”, “E-Nabız”, “MHRS (Central Physician Appointment System)” which have been popular recently. İn this study, it is aimed to examine the positive and negative effects on health services by giving information about mobile health applications developed by the Turkey Ministry of Health for both citizens and health personnel.
Underpricing and aftermarket performance of IPOs during the Covid-19 period: Evidence from Istanbul stock exchange
(Elsevier, 2023) İlbasmış, Metin
The effect of uncertainty on IPO underpricing, short-term performance after IPO, and hot-and-cold-IPO market cycles have received a great deal of attention in the literature. This study revisits these issues of IPO activities under the Covid-19 pandemic with a focus on the Turkish IPO market. Measuring the underpricing and aftermarket performance of IPOs based on the cumulative abnormal returns of the first, second, third, fourth, fifth, tenth, and twenty-first days, we examine how underpricing and aftermarket performances are influenced by Covid-19 and some uncertainty proxies, such as some company characteristics (age, total assets), offering characteristics (gross proceeds, IPO price risk), and aftermarket variables (first-day trading volume, standard deviation of stock prices after the IPO) after controlling for firm, industry and market level variables (first-day trading value, the portion of the firm offered to public, price-earnings ratio, dummy variables for technology, manufacturing, and financial institutions sectors, standard deviation of a market index, moving average return of a market index). The study documents that while an IPO launched during the Covid-19 period has larger underpricing, an average IPO firm that is older, has more assets, generates larger proceeds, trades more on its first day of trading, is expected to fluctuate less after the IPO has a smaller underpricing at its initial public offering. Empirical results show that short-term market-adjusted abnormal returns of IPO firms during the pandemic are much larger than those before the pandemic. Copyright (c) 2023 Borsa.Istanbul Anonim Sirketi. Published by Elsevier B.V.
Does green investments improve air quality? Evidence for developed and developing European countries
(Springer Science and Business Media Deutschland GmbH, 2023) İlbasmış, Metin; Çitil, Mücahit; Demirtaş, Furkan; Ali, Muhammad; Barut, Abdulkadir; Mohsin, Mohammad
The aim of this study is to examine the effect of green investments on air quality for developed and developing European countries. In this context, the short- and long-term effects of green investments on air quality were examined by panel generalized method of moments (GMM) and panel causality method. As a result of the GMM analysis, it has been determined that green investments negatively affect the air quality for both developed European countries and developing European countries in the short term, but this effect turns positive in developed countries in the long term. As a result of the panel causality analysis, two-way causality was determined between air quality and green investments.
Does green finance and institutional quality play an important role in air quality
(SpringerLink, 2023) Çitil, Mücahit; İlbasmış, Metin; Olanrewaju, Victoria Olushola; Barut, Abdülkadir; Karaoğlan, Sadık; Ali, Muhammad
As the negative repercussions of environmental devastation, such as global warming and climate change, become more apparent, environmental consciousness is growing across the world, forcing nations to take steps to mitigate the damage. Thus, the current study assesses the effect of green investments, institutional quality, and political stability on air quality in the G-20 countries for the period 2004-2020. The stationarity of the variables was examined with the Pesaran (J Appl Econ 22:265-312, 2007) CADF, the long-term relationship between the variables by Westerlund (Oxf Bull Econ Stat 69(6):709-748, 2007), the long-run relationship coefficients with the MMQR method proposed by Machado and Silva (Econ 213(1):145-173, 2019), and the causality relationship between the variables by Dumitrescu and Hurlin (Econ Model 29(4):1450-1460, 2012) panel causality. The study findings revealed that green finance investments, institutional quality and political stability increased the air quality, while total output and energy consumption decreased air quality. The panel causality reveals a unidirectional causality from green finance investments, total output, energy consumption and political stability to air quality, and a bidirectional causality between institutional quality and air quality. According to these findings, it has been found that in the long term, green finance investments, total output, energy consumption, political stability, and institutional quality affect air quality. Based on these results, policies implications were proposed.

Güncel Gönderiler