scholarly journals Scenario Based Regional Water Supply and Demand Model: Saudi Arabia as a Case Study

2016 ◽  
Vol 7 (1) ◽  
pp. 46-51 ◽  
Author(s):  
Abdulaziz A. Alhassan ◽  
◽  
Alyssa McCluskey ◽  
Anas Alfaris ◽  
Kenneth Strzepek ◽  
...  
Keyword(s):  
Saudi Arabia ◽  
Water Supply ◽  
Supply And Demand ◽  
Demand Model ◽  
Water Supply And Demand ◽  
Supply And Demand Model ◽  
Regional Water

scholarly journals Simulation of Water Resources Carrying Capacity in Xiong’an New Area Based on System Dynamics Model

Water ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 1085 ◽  
Author(s):  
Boyang Sun ◽  
Xiaohua Yang
Keyword(s):  
Water Resources ◽  
Water Supply ◽  
System Dynamics ◽  
Carrying Capacity ◽  
Environmental Governance ◽  
Supply And Demand ◽  
Groundwater Overdraft ◽  
Water Resources Carrying Capacity ◽  
Water Supply And Demand ◽  
Regional Water

In order to comprehensively evaluate the water resources carrying capacity in Xiong’an New Area, a system dynamics (SD) model was established to evaluate the regional water resources carrying capacity, for which several scenarios were designed: the original development scenario, the accelerated industrialization scenario, the environmental governance scenario, and the optimization development scenario. The results show that, compared with the original development scenario, the water resources carrying capacity in Xiong’an New Area can be improved in other scenarios, but a water supply and demand gap will be generated due to the lack of groundwater overdraft and a water transfer project. In 2026, under the accelerated industrialization scenario, the population carrying capacity will be 2.652 million, and the water supply and demand gap will be 1.13 × 108 m3; under the environmental governance scenario, the population carrying capacity will be 2.36 million, and the water supply and demand gap will be 0.44 × 108 m3; under the optimal development scenario, the population carrying capacity will be 2.654 million, and since the supply of water resources will be greater than the demand, there will not be a gap between supply and demand, making it the most feasible scenario to effectively alleviate the tension between industry restructuring, environmental management, and water resources development and utilization. The findings of this study can provide reference and decision support for optimizing regional water resources allocation and enhancing water resources carrying capacity in Xiong’an New Area.

scholarly journals Water Supply and Demand Gap Analysis: A Case Study on Jessore Pourashava, Bangladesh

2014 ◽  
Vol 2 (1) ◽  
pp. 8-14
Author(s):  
K. M. Delowar Hossain ◽  
M. A. Hakim ◽  
S. Mondal ◽  
M. A. S. Khan ◽  
A. A Seddique
Keyword(s):  
Water Supply ◽  
Gap Analysis ◽  
Supply And Demand ◽  
Water Supply And Demand

scholarly journals Forecast-based analysis for regional water supply and demand relationship by hybrid Markov chain models: a case study of Urumqi, China

2016 ◽  
Vol 18 (5) ◽  
pp. 905-918 ◽  
Author(s):  
B. Wang ◽  
L. Liu ◽  
G. H. Huang ◽  
W. Li ◽  
Y. L. Xie
Keyword(s):  
Markov Chain ◽  
Water Resources ◽  
Markov Model ◽  
Water Supply ◽  
Supply And Demand ◽  
Clear Understanding ◽  
Chain Model ◽  
Water Utilization ◽  
Water Supply And Demand ◽  
Regional Water

A clear understanding of regional water supply and demand trend is crucial for proper water resources planning and management in water-deficient areas, especially for Northwest China. In this study, three hybrid stochastic models (Markov chain model, unbiased Grey-Markov model and Markov model based on quadratic programming) were developed separately for predicating the available water resources, water demand, and water utilization structure in Urumqi. The novelty of this study arises from the following aspects: (1) compared with other models, the developed models would provide ideal forecasting results with small samples and poor information; (2) this study synthetically took into account water supply and demand, water utilization structure trend; (3) the prediction results were expressed as interval values for reducing the forecasting risk when carrying out water resources system planning and operational decisions. Analysis of water supply and demand in Urumqi under different reuse ratios was also conducted based on the forecasting results. The results would help managers and policy-makers to have a clear understanding of regional water supply and demand trend as well as the water utilization structure in the future.

Competing Hypotheses of Underdevelopment: A Thai Case Study

1979 ◽  
Vol 39 (1) ◽  
pp. 113-127 ◽  
Author(s):  
David Feeny
Keyword(s):  
Institutional Change ◽  
Supply And Demand ◽  
Decision Makers ◽  
Change Model ◽  
Demand Model ◽  
Private Interests ◽  
The Social ◽  
Dependency Model ◽  
Supply And Demand Model

This paper will test three models of underdevelopment against the experience of Thailand from 1850 to 1940, when Thailand became a major rice exporter. The models are a dependency model, a staples model, and a supply and demand model of technical and institutional change. The technical and institutional change model provides the best explanation. Divergences between the goals of national security and economic development as well as those between the private interests of the elite decision makers and the social interest explain Thai underinvestment in increasing agricultural productivity and account in large part for the persistence of underdevelopment.

scholarly journals Islamist Women as Candidates in Elections: A Comparison of the Party of Justice and Development in Morocco and the Muslim Brotherhood in Egypt

2017 ◽  
Vol 57 (3-4) ◽  
pp. 329-359 ◽  
Author(s):  
Katarína Škrabáková
Keyword(s):  
Supply And Demand ◽  
Muslim Brotherhood ◽  
Candidate Selection ◽  
Demand Model ◽  
Mena Region ◽  
External Interference ◽  
Female Candidates ◽  
The Muslim Brotherhood ◽  
Supply And Demand Model ◽  
The Impact

This paper examines the legislative recruitment of women from conservative Islamist parties. It questions the common assumption that generally all Islamist parties are equally hostile to political participation and representation of women. For this purpose, two of the electorally most successful Islamist groups in the MENA region are compared, namely the Egyptian Muslim Brotherhood (MB) and its Moroccan offshoot, the Party of Justice and Development (PJD). The article seeks an explanation for diverging trends in female candidacy between these conservative religious movements, using the traditional supply and demand model of candidate selection. It argues that the less centralized and the more institutionalized parties (as is the case with the PJD) seem to be better equipped to facilitate women’s candidacy than the more oligarchic ones (the MB). In order to fully grasp the reasons behind the diverging trends in the nomination of female candidates from both Islamist parties, cultural factors are scrutinized as well. The article highlights the limits of the supply and demand model of candidate selection, which cannot explain instances of unexpected change in recruitment strategies based on external interference. Furthermore, it does not provide us the means to assess the impact of individual candidates’ ‘feminist credentials’ on overall female representation.


Sign in / Sign up

Export Citation Format

Share Document