Ferda Yerdelen

• PhD
• Istanbul University

Conventional economic theories posit that interest functions as a critical catalyst for the continuous operation of the economic system. Given the pervasive use of debt-based monetary mechanisms, the conceptualization of an interest-free financial model is challenging. The interest-based financial system is subject to criticism due to many socio-ec...

Olimpiyat Oyunları, dört yılda bir düzenlenen ve küresel düzeyde en geniş katılımla gerçekleşen spor organizasyonlarından biridir. Ev sahibi ülkeler için önemli ekonomik ve sosyal fırsatlar sunan bu organizasyonlar, aynı zamanda ülkelerin uluslararası temsiliyet düzeylerini de yansıtmaktadır. Bu çalışmanın amacı, 2024 Paris Olimpiyat Oyunları çerçe...

This study investigates the dynamic relationship between energy consumption, economic growth, and labor force in G7 countries from 1970 to 2019, with a particular focus on the transition to a knowledge-based economy. Using advanced panel data analysis techniques, including Bai and Perron’s (Econometrica, 47–78 1998, Journal of Applied Econometrics...

Unemployment is a significant barrier to economic progress and is an important issue that directly affects individuals' quality of life. Imbalances in the labor market, insufficient employment opportunities, and regional disparities lead to fluctuations in the unemployment rate. Therefore, identifying the socio-economic factors affecting unemployme...

This study explains the effects of various economic factors on the ecological footprint of 34 European countries in 2022 using spatial econometric techniques. Unlike previous studies on the ecological footprint, this study presents more comprehensive results by including spatial effects in the model using spatial econometric techniques for 34 count...

This study aimed to determine the relationship between energy consumption, country income, and energy price in 11 OECD countries and used dynamic panel data models. There are several studies on energy with dynamic panel data models in the literature, but the results are biased because they ignore the heterogeneity of countries and cross-sectional c...

Panel veri ekonometrisi kapsamlı bir çerçeve sağladığından son yıllarda karmaşık fenomen ve güncel iktisadi konuları incelemek ve bireysel, zamansal ve bağlamsal faktörler arasındaki etkileşimi analiz etmek için geniş bir şekilde uygulanmaktadır. Doğal afetler, önemli ekonomik olaylar, politika değişiklikleri veya temel eğilimlerdeki kaymalar gibi...

In recent years, there has been a rapid increase in the trend towards environmental sustainability through the adoption of renewable energy resources. However, the main concern revolves around whether renewable energy consumption contributes to economic growth. Thus, this study aims to inves-tigate the relationship between renewable energy and econ...

Kamu harcamaları devletlerin gerekli olan ihtiyaçlarını karşılamak amacıyla yaptığı tüm giderler, ekonomik büyüme ise ülkede belirli bir dönem boyunca üretimi gerçekleştirilmiş olan nihai mal ve hizmetlerin piyasa değerinin, kendinden bir önceki döneme göre artış göstermesi durumu olarak tanımlanabilmektedir. Bu çalışmada 1990-2020 dönemine ait 28...

Spatial econometric models have become increasingly popular in economic studies, especially in recent years. These models differ from classical econometric models in that they take into account the effects arising from the location of the data set subject to the study. The spatial effect seen in a data set comes in two forms. The first form is spat...

Although large companies try to gain new customers, they also want to retain their old customers. Therefore, customer churn analysis is important for identifying old customers without loss and developing new products and making new strategic decisions for retaining customers. This study focuses on the customer churn analysis, that is a significant...

Gelirin sağlık harcamaları üzerindeki etkisi birçok analize konu olmuş ve yapılan çalışmaların çok büyük bir kısmında bu etkinin simetrik olduğu düşünülerek sonuçlar elde edilmeye çalışılmıştır. Ekonometride genel kullanım alanı olan simetrik regresyon model sonuçlarına göre, bir bağımsız değişkendeki bir birimlik artış ile azalışın bağımlı değişke...

In this study, the validity of the environmental Kuznets Curve hypothesis was tested for the period 2000–2018 across 75 countries with various income levels. In addition to the parabolic model, threshold and smooth transition panel regression models were used to estimate the threshold value and the relationships among variables. It was concluded th...

Due to the ongoing climate change and environmental pollution, renewable energy supply has been overemphasized in many countries. Since an increase in the prices of non-renewable energy sources or the country’s income might shift energy demand from non-renewable energy sources to renewable energy sources, this study examines the relationship of ren...

Gelir eşitsizliğini etkileyen makroekonomik faktörlerin tespit edilmesi ve buna uygun bir gelir dağılımı politikası oluşturulması geçmişten günümüze tartışılan konulardandır. 1955 yılında Kuznets’in gelir eşitsizliği ile ekonomik büyüme arasındaki ilişkinin “ters-U” şeklinde bir seyir izlediği yönündeki iddiası pek çok çalışmada sınanmıştır. “Kuzne...

Bu makalede 1993-2000 yılları arasında İMKB'de işlem gören hisse senetlerinin getiri oranları ile piyasaya giren bilginin bir göstergesi olarak kullanılan işlem hacmi değişim oranı arasındaki Granger nedensellik ilişkisi araştırılmış, yeni bilgi girişinin varlık getiri oranları üzerindeki gecikmeli etkisi incelenmiştir. Çalışmada iki ayrı VAR sürec...

Purpose This study aims to estimate the determinants of international tourist flows between destinations by using the panel gravity model. Design/methodology/approach The multi-dimensional panel gravity model was used to analyse tourism originating from 30 different countries to the 14 most-visited countries in the world between 2008 and 2016. Inc...

Panel data models can take different forms as depending on parameters which are changed by units and time. Heterogeneous panel data models are called when all parameters vary by units and/or time. If the dimension is more than two in a panel data model, the model is called as multi-dimensional panel data model, and the parameters can be heterogeneo...

This study examined the presence of spatial effects on international trade within the Eurozone through the use of the three-dimensional (3D) panel gravity model. A spatial weight matrix was incorporated within this model to simulate neighboring relations between countries of origin and destination. An analysis was conducted for the 14 countries wit...

Geçmişi 1950’lere dayanan çekim modelleri daha önceleri ülkeler arasındaki ticaret hacmini modellemekte kullanılırken, sonraları ülkeler arasındaki sermaye akışı, göç ve bu çalışmaya konu olan turist akışını dolayısıyla turizm talebini tahmin etmek için de kullanılmaya başlanmıştır. Turizm sektörü son yıllarda dünyada ülke ekonomilerine katkı sağla...

Bu çalışmada, 2008-2016 yılları arasında Avrupa ülkelerinde NUTS 2 düzeyinde işsizlik oranı ile iktisadi büyüme arasındaki ilişki incelenmiştir. Bu bağlamda birbiri içerisine yuvalanmış üç birim ve bir zaman boyutunun olduğu dört boyutlu (4D) panel veri modelinden hareket edilmiştir. Hem ülkeler bazında hem de tüm panel için Okun Yasasının geçerlil...

Son dönemde çevre kirliliği ile iktisadi büyüme arasındaki ilişkinin varlığının ve niteliğinin analizi birçok çalışmaya konu olmaktadır. Söz konusu yaklaşım çeşitli ülke ya da ülke grupları için farklı ekonometrik modeller ve yöntemler yardımıyla analiz edilmiş ve sonuçların çeşitlilik gösterdiği görülmüştür. Bu çalışmada, Çevresel Kuznets Eğrisini...

Economists who considered the growth performance in the past estimated that Indonesia would preserve its high growth rate performance in the long term. However, the national economy can be currently considered as a developing nation. In addition to public sources, domestic and foreign resources are also needed in the financing of high growth rate....

The progress in the industrial revolution in the fields of science and technology led to production methods by attracting investments in the production factors. The change contributed to efficiency of the sectors and to the emergence of sustainable growth. Having resources that will finance new investments offers contribution to the national econom...

The appearance of the cities in the Gulf has been for a while marked by luxury cars, glorious shopping malls and magnificent buildings. However, these cities are no longer as vibrant as they used to be because of the sharp decline in the prices of the hydrocarbon products. The slowdown in growth has led to some structural issues in the Gulf nations...

The performances of the commanding height sectors including agriculture, manufacturing, construction, tourism and mining are crucially important for growth. To improve the productivity and competitiveness of these sectors, it is imperative to offer financial options and opportunities. Despite that Malaysia gained its independence recently, the coun...

The effects of the government investments and private sector investments on the production, is an important academic argument subject between the Neo-classical school and the Keynesian school. Subject to the financing way of the government sector investments, accruing possibility of private sector investments decreases and crowding-out effect occur...

İktisadi teoriyi her yönüyle ortaya koyabilmek için bazen birim ve/veya zaman etkilerinin olduğu iki boyutlu panel veri modelleri yetersiz kalmakta; ikiden fazla etkinin olduğu çok boyutlu panel veri modellerine ihtiyaç duyulmaktadır. Bu ihtiyacın üzerine, ekonometri literatüründe son yıllarda çok boyutlu panel veri modellerinin nasıl tahmin edilec...

Yabancı sermaye yatırımları ile iktisadi büyüme arasındaki karşılıklı ilişki hem teorik hem uygulamalı çalışmalarda sıklıkla incelenen bir konudur. Ülkelerin gelişmişlik seviyelerine göre çeşitlilik gösteren ilişki, bu çalışmada OECD ülkeleri için hem zaman serisi hem de panel boyutta ele alınmıştır. Kurulan zaman serisi ve panel eşanlı denklemler...

In this chapter, we have focused the impacts of 2008 global crisis on the debt policies and the sustainability of debts in the PIIGS Countries. For that, the circumstances of the global crisis are examined, and the economic condition before the crisis is handled. As a main objective, the public debt indicators of PIIGS Countries are pointed out. Th...

Turkey could be considered the most important and leading Islamic country that has implemented the Western economic model successfully mostly because of the modernization efforts since late Ottoman period. As a result of the secularization efforts in the field of economy in early republican era, Muslim people in the country had to deal with non-Isl...

This study evaluates the capacity of Islamic finance to address the current financial problems and its ability to offer an alternative model and solutions. Specifically one primary goal of th is study is to offer a rational answer to whether Islamic finance could play a role in the global economy and serve as a valuable alternative to the conventio...

This study evaluates the capacity of Islamic finance to address the current financial problems and its ability to offer an alternative model and solutions. Specifically, one primary goal of this study is to offer a rational answer to whether Islamic finance could play a role in the global economy and serve as a valuable alternative to the conventio...

In this paper, long and short term relationships between human capital investment and economic growth for individuals and pooled cases in OECD countries, over the period between 1975 and 2005, were examined. Health care expenditure is used as a proxy for the human capital. After the application of the panel unit root and panel cointegration tests,...

In this paper, the convergence of per capita gross domestic product in 26 high and upper middle income OECD countries over the period 1970-2006 was examined. Threshold autoregressive panel unit root test was employed in analysis. The convergence hypothesis has been tested initially between the gross domestic product of high income countries and lat...

In this paper, the movement of unemployment rate and the long and short term relationships between unemployment rate and economic growth rate are examined for individuals and pooled cases in European countries over the period 1977-2008. Several panel techniques are used for non-stationary panels and thereby some evidence are found for unemployment...

Credit cards, also called plastic money, have increasingly become an indispensable element for both consumers and sellers in last 20 years. Their usage has gone up dramatically all over the world and was not limited only to middle and upper income consumers. Credit cards issuers, especially banks, have entered into fierce competition with each othe...

Households don't spend all of their income but save some of them for various purposes. One of these purposes is to invest. The choice of investment instruments are affected not only by financial factors but also by socio-psychological factors. Revealing how individuals determine their investment choices in a world in which investment instruments ar...

In the last years, many studies have analyzed the stationarity of reel exchange rates which gives important knowledge about economic stability of countries. The panel unit root tests which include both pooled and individual unit root tests are used frequently to analyze the stationarity of real exchange rates. Generally, structural breaks issue hav...

Son yıllarda Satın Alma Gücü Paritesi (SGP) teorisinin uzun dönemde geçerliliğini sınamak için pek çok çalışma yapılmaktadır. Panel birim kök testleri, hem genel durağanlık testlerini hem de bireysel durağanlık testlerini kapsaması nedeniyle tercih edilmektedir. Bu çalışmada 25 OECD ülkesi için reel efektif döviz kuru serisi kullanılarak, hem genel...