Simulating the Economic Impact of Resources Depletion Using a Computable General Equilibrium Model for Romania

Silviu, Dospinescu Andrei

doi:10.1016/s2212-5671(15)00272-5

Cited by 3 publications

(3 citation statements)

References 7 publications

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“…The computable general equilibrium model (CGE) is an economic model that is frequently applied to policy analyses pertaining to the economy. The CGE models can explore the influences of policies on the nexus systems through price mechanisms by grasping the linkages pertinent to market behavior and changes [55,56]. Econometric analysis uses statistical methods to assess empirical content to economic relations by non-experimental economic data analysis [57].…”

Section: Results and Regression Analysismentioning

confidence: 99%

Empirical Framework for a Relative Sustainability Evaluation of Urbanization on the Water–Energy–Food Nexus Using Simultaneous Equation Analysis

Fan

Lin

2019

IJERPH

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The water–energy–food (WEF) nexus attracts much attention due to the elevated public concern regarding environmental conservation and sustainability. As we head into a new era of civilization, population increase and modernized lifestyles have led to an increasing need for water, energy, and food. However, severe hydrological precipitation significantly impacts agricultural harvest, and such influence becomes more apparent under the influence of climate change. Meanwhile, the major method of electricity generation (i.e., fossil fuel burning) has a negative impact on the environment. These inevitable threats are crucial and have to be dealt with for a society on the road towards sustainability. In the present study, an integrated evaluation of the WEF nexus was conducted for two areas with different levels of urbanization using empirical multiple linear regression in a simultaneous equation model (SEM). By incorporating the collected data into the SEM, the weighting coefficient of each identified variable was obtained, and the nexus implication was assessed in model simulation at different scenarios considering the population growth, agro-technology advancement, energy structure improvement, and available water resources. In the simulated results, three observations were found: (1) the rural area is more sustainable than the urban one; (2) the sustainability for both the investigated areas is significantly subject to their water supply and demand; and (3) food production was found to have a less important effect on the sustainable development of the urban area. This study identified the key factors in the WEF nexus exploration, which are economically and environmentally important for resource allocation. An empirical model was developed to correlate sustainable achievement with WEF management, as well as strategic policies that should be implemented under the pressure of urbanization.

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Section: Results and Regression Analysismentioning

confidence: 99%

Empirical Framework for a Relative Sustainability Evaluation of Urbanization on the Water–Energy–Food Nexus Using Simultaneous Equation Analysis

Fan

Lin

2019

IJERPH

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“…Accordingly, models, such as the computable general equilibrium model, econometric analysis, and ecological network analysis, play important roles in large scale nexus research as their consideration of man-made links (e.g. global supply chains of food and energy (Lawford et al, 2013)) creates opportunities to investigate the socioeconomic interactions between remote places (Silviu, 2015). However, the investigation and mathematical methods can be applied to Based on the state-of-the-art research methods, the eight key approaches, i.e., investigation and statistical methods, computable general equilibrium model, econometric analysis, ecological network analysis, life cycle analysis, system dynamics model, agent based modelling and integrated index, are discussed briefly in terms of their advantages, disadvantages and applications, with an aim to identify research gaps in current nexus methods.…”

Section: Modelling Approachesmentioning

confidence: 99%

“…The computable general equilibrium model (CGE) is a kind of economic model, which is widely applied to policy analyses pertaining to economy (Silviu, 2015). The CGE models can evaluate the impacts of policies on the nexus systems through price mechanism by grasping the interlinkages relevant to market behavior and changes (Ge et al, 2014).…”

Section: Computable General Equilibrium Modelmentioning

confidence: 99%

Water-energy-food nexus: Concepts, questions and methodologies

Zhang

Chen

et al. 2018

Journal of Cleaner Production

385

189

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The water-energy-food nexus has gained increasing attention in the research communities as the security of water, energy and food becomes a very high concern due to future uncertainties. Studies pertaining to calculations of flows and dependencies between different resources, assessments of technology and policy applications, and quantifications of system performance have been conducted to understand their interlinkages and develop management options. This paper provides a state-of-the-art review on the concepts, research questions and methodologies in the field of waterenergy-food. First, two types of nexus definition are compared and discussed to understand the nature of nexus research issues. Then, nexus research questions are summarized into three themes: internal relationship analysis, external impact analysis, and nexus system evaluation. Eight nexus modelling approaches are discussed in terms of their advantages, disadvantages and applications, and guidance is provided on the selection of an appropriate modelling approach. Finally, future research challenges are identified, including system boundary, data uncertainty and modelling, underlying mechanism of nexus issues and system performance evaluation. This review helps bring research efforts together to address the challenging questions in the nexus research and develop sustainable and resilient water, energy and food systems. 2 Highlights: 1. Two definitions of nexus exist but they can be unified under integrated system assessment 2. Nexus research is classified into three questions: internal relationship, external analysis, system evaluation 3. Nexus modelling should consider research questions, system scales and data availability 4. Future research challenges are identified to develop sustainable and resilient nexus systems

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China’s Rare Earths Supply Forecast in 2025: A Dynamic Computable General Equilibrium Analysis

Lei

Lianrong

2016

Minerals

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The supply of rare earths in China has been the focus of significant attention in recent years. Due to changes in regulatory policies and the development of strategic emerging industries, it is critical to investigate the scenario of rare earth supplies in 2025. To address this question, this paper constructed a dynamic computable equilibrium (DCGE) model to forecast the production, domestic supply, and export of China's rare earths in 2025. Based on our analysis, production will increase by 10.8%-12.6% and achieve 116,335-118,260 tons of rare-earth oxide (REO) in 2025, based on recent extraction control during 2011-2016. Moreover, domestic supply and export will be 75,081-76,800 tons REO and 38,797-39,400 tons REO, respectively. The technological improvements on substitution and recycling will significantly decrease the supply and mining activities of rare earths. From a policy perspective, we found that the elimination of export regulations, including export quotas and export taxes, does have a negative impact on China's future domestic supply of rare earths. The policy conflicts between the increase in investment in strategic emerging industries, and the increase in resource and environmental taxes on rare earths will also affect China's rare earths supply in the future.

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Simulating the Economic Impact of Resources Depletion Using a Computable General Equilibrium Model for Romania

Cited by 3 publications

References 7 publications

Empirical Framework for a Relative Sustainability Evaluation of Urbanization on the Water–Energy–Food Nexus Using Simultaneous Equation Analysis

Empirical Framework for a Relative Sustainability Evaluation of Urbanization on the Water–Energy–Food Nexus Using Simultaneous Equation Analysis

Water-energy-food nexus: Concepts, questions and methodologies

China’s Rare Earths Supply Forecast in 2025: A Dynamic Computable General Equilibrium Analysis

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