Yazar "Ursavas, Ugur" seçeneğine göre listele

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    Balancing growth and sustainability: The long-run impact of financial and technological innovations on India's ecological footprint
    (Wiley, 2024) Ursavas, Ugur; Bil, Erkan; Yilanci, Veli
    This study examines the effects of financial and technological innovations on India's ecological footprint-a comprehensive indicator of environmental degradation. Although previous research has addressed the individual impacts of these innovations, their collective influence has not been thoroughly investigated. Using data from 1973 to 2018 and employing ARDL Bounds and Bayer-Hanck cointegration tests, we find a long-run relationship between innovations, economic growth, energy consumption, and the ecological footprint. Notably, while the short-term impact of innovations appears detrimental, both financial and technological innovations demonstrate a long-term beneficial effect on the environment, which suggests that initial investments in innovation may have short-term environmental costs, but ultimately contribute to environmental improvement. Additionally, this study confirms the harmful long-term effects of energy consumption and economic growth on the environment. These findings underscore the importance of transitioning to cleaner energy sources, improving energy efficiency, and implementing robust environmental policies to foster sustainable development in India.
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    Convergence analysis of ecological footprint at different time scales: Evidence from Southern Common Market countries
    (Sage Publications Ltd, 2023) Ursavas, Ugur; Yilanci, Veli
    This study investigates the convergence in ecological footprint per capita across Southern Common Market countries over the period 1961-2016 within the framework of the environmental convergence hypothesis. However, unlike the existing literature, which mainly tests the convergence for the overall period, this study follows a different path. First, the time series is decomposed into different frequencies using the discrete wavelet transform method. Then, using the Fourier Augmented Dickey-Fuller and Augmented Dickey-Fuller unit root tests, convergence in ecological footprint per capita is tested for different time scales; short-run, medium-run, and finally long-run. The results indicate that countries show different convergence tendencies at different time scales. While the results support the convergence hypothesis for all countries in the short-run, the convergence hypothesis holds for only four and three of the five countries in the medium and long-run, respectively. Besides, the results show that the convergence hypothesis holds for only Uruguay for the whole period.
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    Convergence in ecological footprint across the member states of ECOWAS: evidence from a novel panel unit root test
    (Springer Heidelberg, 2022) Yilanci, Veli; Ursavas, Ugur; Ursavas, Neslihan
    In this paper, we investigate the convergence in ecological footprint per capita across the ECOWAS (Economic Community of West African States) countries from 1968 to 2017. For this aim, we apply a panel Fourier threshold unit root test recently proposed by Yilanci et al. (2021). This methodology considers both multiple smooth structural changes and nonlinearity, which allows us to get more reliable results. The results of the study support the evidence of nonlinearity for the series, so we test the null of divergence in a nonlinear framework. Since test statistics are statistically significant, we conclude that there is global convergence for the sample. Besides, we find that the type of convergence is absolute, which supports the view that the ecological footprint of the ECOWAS countries will equalize in the long run, and the emission allocation policies should be given priority by policymakers.
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    Revisiting purchasing power parity in emerging-7 countries: A powerful unit root test
    (Universidad Nacional Autonoma de Mexico, 2024) Yilanci, Veli; Ursavas, Ugur; Mike, Faruk
    This paper introduces a newly developed unit root test procedure named the Fourier Quantile aestar (faestar-qks) test that allows nonlinearity and structural changes. The faestar-qks unit root test is mainly based on the quantile approach and provides more powerful results since it is robust toward non-normal errors. Then, we test the Purchasing Power Parity hypothesis (ppp) [or the mean-reverting properties of real exchange rates] in emerging seven (E7) countries (Brazil, China, India, Indonesia, Mexico, Russia, and Turkey) from 1995:1 to 2023:6 by using a novel faestar-qks test procedure. The results show that the faestar-qks unit root test provides more evidence on the validity of ppp than the traditional unit root test. Accordingly, the ppp hypothesis is valid in all E7 countries except for Turkey in the long run. © 2024 Universidad Nacional Autonoma de Mexico. All rights reserved.
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    Towards Sustainable Development: Revisiting the Middle-Income Trap Hypothesis for the Southern Common Market Countries
    (Politechnika Lubelska, 2023) Yilanci, Veli; Ursavas, Ugur; Guven, Tamer
    One of the Sustainable Development Goals (SDGs) of the United Nations is to promote, sustained, inclusive, and sustainable economic growth. However, it is observed that many countries struggle to move up from the middle-income to high-income level, which refers to the middle-income trap (MIT). In this paper, we test the MIT hypothesis using a novel unit root test of Gomez-Zaldivar et al. (2013) across the Southern Common Market (MECOSUR) countries. To do so, we follow a different path from the existing literature and use a novel unit root testing strategy. We first test the significance of the trend term and then examine the unit root properties of the series by allowing multiple structural breaks according to the existence/non-existence of the trend term. Our results provide evidence of stationarity for Brazil, Colombia, Ecuador, and Peru, indicating that these four MERCOSUR countries are in MIT.