The Economic Impact of Water Vulnerability on Corporate Sustainability: A Perspective of Corporate Capital Cost

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Abstract
Studies have argued that water risk affects corporate sustainability, but few of them have fully explored whether or not and how water resources have a direct impact on corporate finance and strategy. This study takes the listed companies in the Chinese A-share market from 2019 to 2023 as a sample to understand the threat of water vulnerability to corporate sustainability from the perspective of capital cost. This study argues that water vulnerability positively relates to corporate capital cost by increasing corporate financing constraints. Meanwhile, this study also examines the role of water regulation and water investment in the relationship between water vulnerability and corporate capital cost. Water regulation brings legitimate pressure to corporations and increases the transformation risks faced by them, so it has a positive moderating effect. Water investment can alleviate the vulnerability of local water resources and reduce the physical water risk faced by corporations, so it has a negative moderating effect. The study finds that the two measures mainly play a significant moderating effect on the cost of debt. In addition, the study finds that the positive relationship between water vulnerability and capital cost has industrial and firm-level heterogeneity, while the moderating effect of government water governance has only industrial heterogeneity.
Funding Information
  • 2024 Jiangsu University Philosophy and Social Science Research General Project (2024SJYB0561, 2023XK011, JSS-C-2023033)
  • Jiangsu Open University (Jiangsu City Vocational College) 14th Five-Year 2023 Annual Research Planning Project (2024SJYB0561, 2023XK011, JSS-C-2023033)
  • 2023 Annual Jiangsu Province Social Education Planning Project (2024SJYB0561, 2023XK011, JSS-C-2023033)

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