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GTAP Resource #4213

"CGE-W: An Integrated Modeling Framework for Analyzing Water-Economy Links Applied to Pakistan"
by Robinson, Sherman and Arthur Gueneau


Abstract
This paper describes a linked model system consisting of a dynamic economywide Computable General Equilibrium (CGE) model and a regional water system model (RWSM). The combined CGE-W model is applied to Pakistan to analyze the economywide impacts of changes in water resources in the Indus river basin, focusing on water “shocks” such as droughts. The CGE-W model is regionally disaggregated with a number of crops and includes the impacts of water stress on agricultural productivity. The RWSM model applied to Pakistan (RWSM-Pak) is a new water basin simulation model that starts from the Indus Basin Model Revised (IBMR) for Pakistan first developed by the World Bank. RWSM-Pak is designed to manage the water system (reservoirs and canal system) under different scenarios of river flows and competing demands (provided by the CGE model). The CGE model is disaggregated to incorporate water demand and the impact of water shortages on crops. Both models simulate long-run economic growth and changes in water resources, supporting analysis of long-run climate change scenarios, and are designed to work together as an integrated model system. The CGE-W model framework combines the strengths of the component economic and water models, without having to make compromises typical of water models that incorporate simple economics or economic models that include water in a simplified manner. To illustrate the use of the model system, we present empirical results for four climate change scenarios and analyze the economic benefits of adding a new dam to the system.


Resource Details (Export Citation) GTAP Keywords
Category: 2013 Conference Paper
Status: Published
By/In: Presented at the 16th Annual Conference on Global Economic Analysis, Shanghai, China
Date: 2013
Version:
Created: Robinson, S. (4/15/2013)
Updated: Robinson, S. (5/31/2013)
Visits: 888
- Dynamic modeling
- Climate impacts
- Water
- Economic development
- Food prices and food security
- Asia (Southeast)


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  File format CGE-W: an Integrated Modeling Framework for Analyzing Water-Economy Links A  (199.6 KB)   Replicated: 0 time(s)
  File format GTAP Resource 4213  (950.7 KB)   Replicated: 0 time(s)


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