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    Reinvestigation of the validity of the EKC hypothesis extended with energy: A time-varying analysis for the United Kingdom
    (Elsevier Sci Ltd, 2023) Yilanci, Veli; Gorus, Muhammed Sehid; Andreoni, Valeria
    The Environmental Kuznets Curve (EKC) hypothesis has been extensively analyzed as a long-term relationship between the economic development stages and related environmental impacts. Most of the existing literature has however produced unreliable results as extensive databases have been used without considering the length of the time span. In this study, the EKC hypothesis is re-investigated for the United Kingdom for the time period 1850-2018. The objective is to conduct an innovative methodological approach that, contrary to the conven-tional estimation methods, uses time-varying techniques-the time-varying cointegration test of Bierens and Martins (2010) and the time-varying causality test of Shi et al. (2018, 2020)-to account for the incidence of unexpected historical events, such as socio-economic and policy crises. Results show that, for the considered years, the EKC hypothesis is valid for the UK. In addition, by including income, carbon dioxide emissions, and energy consumption data, the present study also analyses the environmental impacts of energy use and the environmental quality changes that have taken place during the considered period of time. This result proves that energy consumption pollutes the environment significantly; however, the magnitude of its impact can be affected by many shocks. According to the empirical findings, policymakers could adhere to current policies because environmental quality has started to increase for several decades in the United Kingdom. The employed methodology, and the related results, can support the definition of policies and the development of additional research initiatives.
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    The role of affluence, urbanization, and human capital for sustainable forest management in China: Robust findings from a new method of Fourier cointegration
    (John Wiley and Sons Ltd, 2023) Yılancı, Veli; Ulucak, Recep; Zhang, Yaoqi; Andreoni, Valeria
    Affluence and planned urbanization may have a crucial role in conserving forests and decreasing forest footprint with rising awareness and human development. Productivity rise from technological progress is key to facilitating the underlying mechanisms of theoretically expected changes in all those processes. They are seen as an alternative way to transform the current habits into one that is conservative and respectful to the environment while keeping the economic welfare at the same time. By following the theoretical underpinnings of such expectations, this article investigates how the development changes of China have impacted on the forest footprint. In this frame, the study is an attempt to empirically inquire underlying mechanisms of the forest transition hypothesis, which supports the idea that affluence, urbanization, human capital, and productivity can help to save forests. The transition process is depicted by a hump-shaped curve mostly attributed to the Environmental Kuznets Curve in the literature. The period 1961–2017 is particularly relevant as it precedes and follows the Chinese open-door policy of the 1980s. This study reaches robust findings and new insights for sustainable forest management. Results show that income growth did not contribute to reducing the forest footprint, as the forest footprint has increased with income rises. On the contrary, urbanization, human capital, and total factor productivity have reduced the forest footprint. Based on the evidence provided, policymakers should devote increasing attention to education that serves human capital formation, and efficiency gains for sustainable forestry simultaneously.