The Impact of water marketization mechanisms on improving water use efficiency: An empirical study from water rights trading in China

IF 4.7 2区地球科学 Q1 WATER RESOURCES

Journal of Hydrology-Regional Studies Pub Date : 2024-09-07 DOI:10.1016/j.ejrh.2024.101957

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引用次数: 0

Abstract

Study Region

China.

Study Focus

Water resources are one of the indispensable and irreplaceable natural resources in the operation of social and economic sustainable development. When economic measures are used to manage water resources, the market mechanism can be used to fully optimize resource allocation and boost water use efficiency (WUE). While existing research have begun to explore the impact of water rights trading (WRT) on WUE, most remain theoretical, with empirical studies often neglecting time differences in WRT implementation across provinces, leading to unresolved endogeneity issues. To accurately assess the policy effects of WRT, our research constructs a multi-period DID mode that addresses these limitations.

New Hydrological Insights for the Regions

This study reveals that WRT significantly improves WUE, with water use per unit of output decreasing by 574.724 units in agriculture, 366.136 units in industry, and 210.770 units overall, demonstrating robustness. The policy effects of WRT require time to materialize, showing both dynamic and spatial sustainability. Technological innovation (TEIN) and water factor mobility (FM) serve as intermediary variables through which WRT optimizes WUE, with TEIN exhibiting a masking effect on WUE improvement. These insights can contribute to improved water resource management globally by guiding the development of tailored water rights policies and strategies that incorporate market mechanisms, foster technological innovation, and improve overall WUE.

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水市场化机制对提高用水效率的影响：中国水权交易实证研究

研究地区中国.研究重点水资源是社会经济可持续发展过程中不可或缺、不可替代的自然资源之一。利用经济手段管理水资源，可以充分发挥市场机制的作用，优化资源配置，提高用水效率。虽然现有研究已开始探讨水权交易对用水效率的影响，但大多数研究仍停留在理论层面，实证研究往往忽视了水权交易在各省实施的时间差，导致内生性问题无法解决。为了准确评估水权交易的政策效应，我们的研究构建了一种多期 DID 模式，以解决这些局限性。本研究揭示了水权交易显著改善了用水效率，农业单位产出用水量减少了 574.724 单位，工业单位产出用水量减少了 366.136 单位，总体用水量减少了 210.770 单位，显示了稳健性。世界水资源评估的政策效应需要时间来实现，这显示了动态和空间的可持续性。技术创新（TEIN）和水因子流动性（FM）是水利工程优化水资源利用效率的中间变量，而技术创新（TEIN）对水资源利用效率的提高具有掩盖作用。这些见解有助于改善全球的水资源管理，指导制定有针对性的水权政策和战略，以纳入市场机制、促进技术创新并提高总体用水效率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Hydrology-Regional Studies Earth and Planetary Sciences-Earth and Planetary Sciences (miscellaneous)

CiteScore

6.70

自引率

8.50%

发文量

284

审稿时长

60 days

期刊介绍： Journal of Hydrology: Regional Studies publishes original research papers enhancing the science of hydrology and aiming at region-specific problems, past and future conditions, analysis, review and solutions. The journal particularly welcomes research papers that deliver new insights into region-specific hydrological processes and responses to changing conditions, as well as contributions that incorporate interdisciplinarity and translational science.

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