Yazar "Shahbaz, Muhammad" seçeneğine göre listele

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    Are policy shocks to forest products footprint permanent or temporary? Evidence from 128 countries
    (Taylor & Francis Ltd, 2025) Shahbaz, Muhammad; Akcan, Ahmet Tayfur; Soyyigit, Semanur; Kilic, Cueneyt
    Sustainable environmental policies are important for future generations to live in a more livable world. Therefore, the environmental damage of the policies implemented is expected to be minimized. In this way, the effects of environmental shocks can be temporary. Rather than analyzing ecological footprint as a deductive approach, analyzing the smaller components that cause ecological footprint will make a different contribution to the literature. For this reason, forest products footprint analysis affecting ecological footprint was investigated. In order to analyze the permanent or temporary nature of environmental shocks, forest product footprint, which is one of the variables used in the calculation of environmental damage, is used for 128 countries covering the period of 1961-2022. We used three different tests in this study. Firstly, the PANIC unit root test, which developed in 2003, secondly the PANIC with sharp breaks test, which developed in 2009 and finally the PANIC with dummy factor break unit root test, which developed in 2022, is used to calculate the permanent and temporary of shocks. According to results of the PANIC with dummy factor break unit root test with two breaks and without trend effect, environmental shocks have a permanent effect in 110 countries and in the model with trend effect, environmental shocks are permanent in 103 countries. In countries where policy shocks are temporary, permanent structural reforms are needed to prevent deforestation.
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    Öğe
    How Does Economic and Monetary Policy Uncertainty Affect Climate Policy Uncertainty in the United States?
    (Politechnika Lubelska, 2025) Akcan, Ahmet Tayfur; Shahbaz, Muhammad; Kilic, Cuneyt; Kazak, Hasan
    Policy uncertainties can directly affect the outcomes of policies to be implemented. Therefore, it is important to reduce policy uncertainties. Identifying policy uncertainties and related factors is important in this regard. This study examines the impact of economic and monetary policy uncertainty on climate policy uncertainty in the United States. The relationship between the variables is examined asymmetrically using monthly data for 19882022. First, the Augmented Dickey-Fuller Unit Root Test and the Fractional Frequency Fourier Augmented Dickey-Fuller Unit Root Test are applied. The Asymmetric Wavelet Transform Coherence Test is also used to determine the direction and frequency of the relationship between the variables. Asymmetric time-varying causality analysis was used for the causality dimension. The significant relationship between economic policy uncertainty, monetary policy uncertainty and climate policy uncertainty varies at different time periods.