(Press-News.org)
The general equilibrium framework of the CGE model widely used in cost-benefit analysis in the field of energy and environmental policy. Based on standard micro- and macroeconomic theories, the CGE model establishes quantitative connections between various sectors of the economy, enabling the examination of both direct and indirect effects resulting from exogenous changes in the economy, as well as their global impacts on the overall economy.
A team of energy economists by Yu Liu from Peking University in Beijing, China recently outlined the detailed content of their CGE model. This model is constructed based on the CGE model theory of the Australian Center of Policy Studies, elaborates on the main modules and equations of the Chinese environmental CGE model used, economic and emission database development, macro closure settings, solution methods, and interpretation of simulation results. The main features of the model include: 1) Following the idea of Johansen (1960), the nonlinear relationship between economic variables is converted into a rate of change form, thereby converting the nonlinear equations into a linear equation that is easy to be solved by computers; 2) According to the impact amplitude Flexible selection of various solution methods, such as Johansen's one-step method, Euler's multi-step method, etc., to achieve a balance between solution speed and accuracy; 3) Providing a theoretical paradigm to explain simulation results. The underlying transmission mechanism of the CGE model can be expressed using a set of simplified equations defined as Back-of-the-Envelope.
The team published their review in Energy and Climate Management on May 8, 2024.
“In this review, we present the extension of the basic CGE model to multiple critical domains, encompassing dynamic analyses of carbon tax and carbon trading market, thorough consideration of the energy rebound effect, diverse impacts of environmental tax and disclosure, as well as systematic exploration of carbon-neutral strategies. These enhancements augment the practical applicability of the CGE model, offering more reliable support for formulating comprehensive and effective policies,” said Yu Liu, senior author of the paper, professor in the College of Urban and Environmental Sciences at Peking University. Dr. Liu is also the Recipient of the National Science Fund for Distinguished Young Scholars of China and the Peking University Distinguished Professor of Boya.
Although CGE model cannot accurately quantify real-world results, it can provide crucial economic indicators and trends in production activities. “Our model still has some limitations. If you have experience or guidance in the development and application of CGE models, we sincerely welcome your valuable suggestions and assistance,” Yu Liu Said.
Other contributors include Nenggao Zhu, Lingyu Yang, Xinbei Li from the School of Public Policy and Management, University of Chinese Academy of Sciences in Beijing, China; Meifang Zhou from the School of Economics, Beijing Technology and Business University in Beijing, China; Xin Wen from the School of Economics and Management, Beihang University in Beijing, China; Jinzhu Zhang from the College of Urban and Environmental Sciences, Peking University in Beijing, China.
The work is supported by National Natural Science Foundation of China (72125010, 72243011, 71974186, 72104014) and the Fundamental Research Funds for the Central Universities in Peking University.
About Energy and Climate Management
Managing the changing climate and energy transition are two closely related scientific and policy challenges of our society. Energy and Climate Management is an open access, peer-reviewed scholarly, policy-oriented academic journal dedicated to publishing interdisciplinary scientific papers on cutting-edge research on contemporary energy and climate management analysis. The Journal is exclusively available via SciOpen and aims to incentivize a meaningful dialogue between academics, think tanks, and public authorities worldwide. Contributions are welcomed covering areas related to energy and climate management, especially policy, economics, governance, and finance. Online submission portal available at https://mc03.manuscriptcentral.com/jecm.
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