{"title":"A flexible input-output price model for assessment of a nexus perspective to energy, water, food security policymaking","authors":"Garima Vats , Deepak Sharma , Suwin Sandu","doi":"10.1016/j.rset.2021.100012","DOIUrl":null,"url":null,"abstract":"<div><p>Input-Output models and their extensions offer multiple prospects to explore the energy, water, food inter-linkages – Energy, Water, Food nexus (EWF-n). This paper takes India as a case study to examine a nexus-informed approach to policy making for redressing the EWF security (EWF-s) challenges. First, a Leontief demand-driven EWF-extended Input-Output model is developed. The Leontief's production functions (representing endogenous, fixed technical coefficients) of the developed model are then further modified using flexible functions to capture EWF-related technological and policy interventions. The resulting changes in the model (to include divergent input substitution possibilities) allow evaluation of policy scenarios with nexus or non-nexus considerations towards EWF-s. These scenarios assess outcomes across diverse domains (physical, social, economic, environmental) in short, medium, and long-run over the period 2015-2047. The results show that not only does the EWF nexus-oriented scenario produce major co-benefits demonstrated in terms of the most significant long-term improvement in EWF outcomes but that it also achieves considerably superior economic, social, and environmental outcomes. Synergies and trade-offs across various policy scenarios are also discussed. The insights obtained from the application of this approach, especially cross-sectorial (EWF), cross-domain, and temporal can provide promising takeaways for policymakers to adopt a robust and sustainable strategy for tackling the EWF-s challenges.</p></div>","PeriodicalId":101071,"journal":{"name":"Renewable and Sustainable Energy Transition","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667095X2100012X/pdfft?md5=fc50bb3e6116f8935870709d0690d481&pid=1-s2.0-S2667095X2100012X-main.pdf","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Renewable and Sustainable Energy Transition","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2667095X2100012X","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 5
Abstract
Input-Output models and their extensions offer multiple prospects to explore the energy, water, food inter-linkages – Energy, Water, Food nexus (EWF-n). This paper takes India as a case study to examine a nexus-informed approach to policy making for redressing the EWF security (EWF-s) challenges. First, a Leontief demand-driven EWF-extended Input-Output model is developed. The Leontief's production functions (representing endogenous, fixed technical coefficients) of the developed model are then further modified using flexible functions to capture EWF-related technological and policy interventions. The resulting changes in the model (to include divergent input substitution possibilities) allow evaluation of policy scenarios with nexus or non-nexus considerations towards EWF-s. These scenarios assess outcomes across diverse domains (physical, social, economic, environmental) in short, medium, and long-run over the period 2015-2047. The results show that not only does the EWF nexus-oriented scenario produce major co-benefits demonstrated in terms of the most significant long-term improvement in EWF outcomes but that it also achieves considerably superior economic, social, and environmental outcomes. Synergies and trade-offs across various policy scenarios are also discussed. The insights obtained from the application of this approach, especially cross-sectorial (EWF), cross-domain, and temporal can provide promising takeaways for policymakers to adopt a robust and sustainable strategy for tackling the EWF-s challenges.