Ekonomi ve Finans Bölümü Koleksiyonu
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- ItemThe Role of Forest Areas as Carbon Sinks in Türkiye: The Impact of Industrialization and Energy Consumption on Greenhouse Gas Emissions(KASTAMONU UNIV, 2026-04) Şengül, Serkan; 355807Aim of study: This study examines the impact of forest area expansion on greenhouse gas (GHG) emissions in T & uuml;rkiye, focusing on the roles of industrial production, energy consumption, and economic growth. Area of study: The analysis covers T & uuml;rkiye using annual data for the period 1990-2021. Data on GHG emissions, forest areas, industrial production, energy consumption, and economic growth were obtained from the Turkish Statistical Institute (TurkStat) and other official sources. Material and method: The study employs the autoregressive distributed lag (ARDL) model and Johansen cointegration approach to analyze the long-run relationships among the variables. Unit root tests were conducted to examine the stationarity properties of the series. Main results: The findings indicate that forest area expansion significantly reduces GHG emissions in the long run, highlighting the role of forests as carbon sinks. In contrast, industrial production, energy consumption, and GDP per capita exert statistically significant positive effects on emissions. The Johansen cointegration results confirm a stable long-run equilibrium relationship among the variables. Research highlights: Achieving T & uuml;rkiye's emission reduction targets requires strengthening forest management policies and aligning industrial production and energy consumption with environmental sustainability.
- ItemEconomic and Social Determinants of Regional Entrepreneurship: Evidence From Turkiye(Cukurova University, 2026-01) Şengül, Serkan; Canbay, Şerif; Şener, Murat; 355807This study examines the long-term effects of economic and social factors affecting entrepreneurial activities across Türkiye’s NUTS1 regions between 2009 and 2022. Using the Fully Modified Ordinary Least Squares (FMOLS) methodology, the relationships among regional GDP growth, income inequality, unemployment rates, public education expenditures and early school leaving rates are analyzed. The results show that GDP growth and income inequality have a positive impact on entrepreneurial activities, whereas unemployment rate and public education expenditures have negative effects. Early school leaving rate is found to have a limited but positive effect on entrepreneurship. It explicitly links entrepreneurship to broader socio-economic dimensions, highlighting how factors such as income inequality, education, and unemployment shape entrepreneurial dynamics across regions. The findings reveal that economic and social factors play a multidimensional role in shaping entrepreneurship dynamics. By incorporating regional disparities and linking entrepreneurship with broader socio-economic dimensions, the study aligns with international literature on entrepreneurship and economic development. It also provides practical recommendations for policymakers, such as developing strategies to promote income equality, strengthening regional financial support mechanisms, and integrating entrepreneurship education into the national curriculum to foster sustainable development. This comprehensive analysis offers both insight into Turkey’s regional entrepreneurship landscape and a framework for policymakers aiming to balance economic growth with social equity.
- ItemEmeklilik Ödemeleri Tasarrufları Azaltıyor Mu? Türkiye Ekonomisi Üzerine Ampirik Bir Analiz(Çanakkale Onsekiz Mart Üniversitesi, 2026-01) Şengül, Serkan; Köprücü, Yılmaz; 355807Bu çalışma, 1980–2019 döneminde Türkiye ekonomisinde kamu emeklilik harcamalarının ulusal tasarruflar üzerindeki kısa ve uzun dönemli etkilerini, emeklilik sisteminin tasarruf teşvikleri üzerindeki rolünü merkeze alarak ampirik olarak incelemeyi amaçlamaktadır. Bu çerçevede Otoregresif Dağıtılmış Gecikme (ARDL) yaklaşımı kullanılarak, ulusal tasarrufların temel makroekonomik belirleyicileri olarak emeklilik harcamaları, hanehalkı nihai tüketim harcamaları ve kişi başına GSYH büyüme oranı arasındaki dinamik ilişkiler analiz edilmiştir. ARDL sınır testi sonuçları, değişkenler arasında uzun dönemli bir eşbütünleşme ilişkisinin varlığını ortaya koymaktadır. Uzun dönem tahmin bulguları, emeklilik harcamaları ile tüketim harcamalarının ulusal tasarruflar üzerinde istatistiksel olarak anlamlı ve negatif bir etki yarattığını, buna karşılık ekonomik büyümenin tasarruf davranışını olumlu yönde etkilediğini göstermektedir. Elde edilen sonuçlar, kamu emeklilik ödemelerinin bireylerin ihtiyati ve emeklilik amaçlı özel tasarruf gereksinimini zayıflattığını ve bu yolla tasarruflar üzerinde belirgin bir dışlama etkisi oluşturduğunu ortaya koyarak, Keynesyen tüketim fonksiyonu ile Yaşam Döngüsü Hipotezi’nin teorik öngörüleriyle uyumludur. Kısa dönem analizleri, istatistiksel olarak anlamlı hata düzeltme terimi aracılığıyla uzun dönem dengesinin korunduğunu ve tüketim harcamalarının tasarruflar üzerindeki olumsuz etkisinin kısa vadede de sürdüğünü teyit etmektedir. Bu bulgular, Türkiye’de emeklilik sistemine yönelik politika tasarımının, kamu emeklilik ödemeleri ile özel emeklilik tasarruflarını eşgüdümlü biçimde ele alan, otomatik katılımı güçlendiren ve katkı–ödül bağlantısını kuvvetlendiren mekanizmalarla desteklenmesi gerektiğine işaret etmektedir.
- ItemThe role of schooling in shaping the fishing footprint in Greece: evidence from an augmented ARDL approach(INIDEP, 2026-01) Karahan-Dursun, Pınar; Şengül, Serkan; Canbay, Şerif; 414023; 355807The fishing footprint, which reflects humanity’s demand on marine ecosystems and is closely linked to fisheries sustainability, serves as the main environmental indicator for marine resources. This study investigated the role of schooling as an indicator of human capital in shaping the fishing footprint in Greece over the period 1990-2022. The empirical analysis employed the Augmented ARDL (AARDL) approach, concentrating on the potential nonlinear relationship between human capital and environmental degradation in fishing grounds. The findings reveal the threshold effects of schooling: while lower levels of human capital increase environmental pressure, once a certain threshold is surpassed, human capital contributes to reducing environmental degradation in fisheries. Furthermore, the results validate the Environmental Kuznets Curve (EKC) and Environmental Phillips Curve (EPC) hypotheses in the context of fishing grounds.
- ItemLogistics connectivity, foreign investments and trade relationships in ASEAN countries(Emerald, 2025-12) Canbay, Şerif; Karahan-Dursun, Pınar; Şengül, Serkan; 414023; 355807Purpose This study examines the causal relationships among the export volume index, the liner shipping connectivity index (LSCI) and foreign direct investment (FDI, net inflows as % of GDP) for the five founding members of ASEAN–Indonesia, Malaysia, the Philippines, Singapore and Thailand–during the 2006–2021 period. Design/methodology/approach The analysis applies the panel bootstrap causality test developed by Kónya (2006), which allows for country-specific inferences without requiring cross-sectional independence or parameter homogeneity. Three models are estimated to identify the direction and nature of causal linkages among the variables. Findings The results show evidence of Granger causality from LSCI and FDI to exports in the Philippines, Singapore and Thailand, with positive estimated coefficients indicating that stronger maritime connectivity and investment inflows are associated with higher export performance. Causality also runs from exports to LSCI in Indonesia and the Philippines, suggesting that trade expansion stimulates infrastructure improvements. While FDI negatively affects LSCI in Indonesia, a positive coefficient is observed for the Philippines. In addition, LSCI Granger-causes FDI in the Philippines and Singapore, reflecting the role of maritime connectivity in attracting investment. These results highlight substantial cross-country heterogeneity in trade, logistics and investment dynamics. Research limitations/implications The analysis is limited to five ASEAN founding members and to the 2006–2021 period due to the availability of the LSCI data. Future research may extend the analysis to other ASEAN economies or incorporate additional macroeconomic factors. Practical implications The findings provide valuable insights for policymakers seeking to enhance maritime infrastructure, attract FDI and strengthen regional trade integration through improved logistic connectivity. Originality/value This study contributes to the literature by simultaneously examining the bidirectional and country-specific causal linkages among maritime connectivity, trade and investment using a robust panel bootstrap approach, offering new empirical evidence on the structural heterogeneity of ASEAN economies.
