CO 2 emission trends of China's primary aluminum industry: A scenario analysis using system dynamics model

Energy Policy ◽  
2017 ◽  
Vol 105 ◽  
pp. 225-235 ◽  
Author(s):  
Qiang Li ◽  
Wenjuan Zhang ◽  
Huiquan Li ◽  
Peng He
Author(s):  
Farah Hanim Abdul Rahim ◽  
Nurul Nazihahhawari ◽  
Norhaslinda Zainal Abidin

The Malaysian government had targeted for the rice industry in the country to achieve 100% rice self-sufficiency where Malaysia’s rice self-sufficiency level (SSL) is currently at 65% to 75%. Thus, the government had implemented few policies to increase the rice production in Malaysia to meet the growing demand of rice. This paper focus on analyzing the impact of price subsidy on the rice production system in Malaysia using a system dynamics modelling approach. Scenario analysis was conducted using the developed system dynamics model by making changes on the price subsidy and observe the impact of the changes on the rice production and rice SSL. The developed system dynamics model offers better understanding of the effect of price subsidy on the rice self-sufficiency level. Based on the scenario analysis, the result shows that a 50% increase in the price subsidy leads to a substantial increase in demand as the rice price drops. Accordingly, the local production increases by 15%. However, the SSL slightly decreases as the local production is insufficient to meet the large demand.


Energy ◽  
2018 ◽  
Vol 161 ◽  
pp. 118-129 ◽  
Author(s):  
Dunnan Liu ◽  
Weidong Zhao ◽  
Zhihao Li ◽  
Xiaofeng Xu ◽  
Bowen Xiao ◽  
...  

2010 ◽  
Vol 20 (2) ◽  
pp. 59-62
Author(s):  
Patrick Einzinger ◽  
Günther Zauner ◽  
G. Ganjeizadeh-Rouhani

Systems ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 56
Author(s):  
Urmila Basu Mallick ◽  
Marja H. Bakermans ◽  
Khalid Saeed

Using Indian free-ranging dogs (FRD) as a case study, we propose a novel intervention of social integration alongside previously proposed methods for dealing with FRD populations. Our study subsumes population dynamics, funding avenues, and innovative strategies to maintain FRD welfare and provide societal benefits. We develop a comprehensive system dynamics model, featuring identifiable parameters customizable for any management context and imperative for successfully planning a widescale FRD population intervention. We examine policy resistance and simulate conventional interventions alongside the proposed social integration effort to compare monetary and social rewards, as well as costs and unintended consequences. For challenging socioeconomic ecological contexts, policy resistance is best overcome by shifting priority strategically between social integration and conventional techniques. The results suggest that social integration can financially support a long-term FRD intervention, while transforming a “pest” population into a resource for animal-assisted health interventions, law enforcement, and conservation efforts.


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