Journal
ECONOMIC SYSTEMS RESEARCH
Volume 33, Issue 4, Pages 509-535Publisher
ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
DOI: 10.1080/09535314.2020.1805414
Keywords
Input-output model; nonlinear optimization; water scarcity; Great Lakes
Categories
Funding
- project GlobalWater Futures as part of the Canada First Research Excellence Fund (CFREF), in particular the sub-projects Integrated Modelling Program for Canada (IMPC)
- Lake Futures
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This study introduces a water-restricted input-output model to assess the economic impacts of water supply reductions in the Canadian Great Lakes Basin. The model incorporates a flexible economic optimization procedure and accounts for inter-regional trade between different lake regions. The research investigates the impacts of climate change on water security and the economy with and without additional food and energy security restrictions.
This paper presents a water-restricted multi-regional input-output model to evaluate the economic impacts of water supply reductions in the Canadian Great Lakes Basin (GLB), one of the largest freshwater reservoirs in the world. The proposed model, first of its kind applied to the GLB, aims to minimize the impact of water supply disruptions on the GLB-economy, measured by the loss of GDP. A new flexible economic optimization procedure is introduced, capable of imposing resource constraints and ensuring minimal supply levels for intermediate and final consumption at the same time. The model accounts for inter-regional trade between different lake regions. The impacts of two climate change scenarios on water security and the economy are investigated, with and without additional food and energy security restrictions. The proposed economic optimization model holds promise as a new tool for resource-restricted Input-Output analyses.
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