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Water and socioeconomic dependencies: a multiregional model
Clean Technologies and Environmental Policy ( IF 4.2 ) Pub Date : 2020-08-20 , DOI: 10.1007/s10098-020-01915-x
Miguel A. Almazán-Gómez , Rosa Duarte , Raquel Langarita , Julio Sánchez-Chóliz

Abstract

River basins often extend over several regions connected by both water flows and socioeconomic factors. Therefore, water policy and diverse hydrological scenarios can affect socioeconomic variables in other parts of a river basin. This paper proposes a tool combining hydro-economic and input–output models to analyze the socioeconomic impacts of different hydrologic scenarios from a multiregional standpoint. To this end, we have built a monthly-basis hydro-economic model to fit a multiregional input–output table to estimate direct and indirect impacts on value added and employment, bringing together data on water flow and regional demand, sector-based economic analysis and macroeconomic impacts. In a given hydrological scenario, the hydro-economic model determines the output of irrigated farmland in each region and the value added generated by each crop. These data are then processed using the multiregional input–output model to determine socio-economic impacts in each of the regions forming the river basin. This methodology allows evaluation of different water policies, providing a tool for policymakers to estimate socio-economic impacts. Finally, we apply this methodology in two scenarios reflecting the opportunity costs of diverse hydrological scenarios in terms of value added and employment terms to demonstrate its excellent analytic capacity.

Graphic abstract



中文翻译:

对水和社会经济的依赖:多区域模型

摘要

流域经常延伸到由水流和社会经济因素连接的几个区域。因此,水政策和多样的水文情景会影响流域其他地区的社会经济变量。本文提出了一种将水文经济模型与投入产出模型相结合的工具,以便从多区域的角度分析不同水文情景的社会经济影响。为此,我们建立了一个月度基础的水力经济模型,以拟合多区域投入产出表,以估算对增加值和就业的直接和间接影响,将水流量和区域需求的数据汇总在一起,进行基于部门的经济分析和宏观经济影响。在给定的水文情况下,水力经济模型确定了每个区域的灌溉农田的产量以及每种作物产生的增加值。然后使用多区域投入产出模型处理这些数据,以确定形成流域的每个区域的社会经济影响。这种方法可以评估不同的水政策,为政策制定者提供一种估算社会经济影响的工具。最后,我们在两种情况下应用此方法论,以增加值和就业条件来反映各种水文情况的机会成本,以证明其出色的分析能力。为政策制定者提供一种工具来估计其社会经济影响。最后,我们在两种情况下应用此方法论,以增加值和就业条件来反映各种水文情况的机会成本,以证明其出色的分析能力。为政策制定者提供一种工具来估计其社会经济影响。最后,我们在两种情况下应用此方法论,以增加值和就业条件来反映各种水文情况的机会成本,以证明其出色的分析能力。

图形摘要

更新日期:2020-08-20
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