私人行为体的高贴现率破坏了气候变化适应政策

IF 4.8 2区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Climate Risk Management Pub Date : 2023-01-01 DOI:10.1016/j.crm.2023.100488
Francisco Alpizar , Maria Bernedo del Carpio , Roger Cremades , Paul J. Ferraro
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引用次数: 2

摘要

适应需要现在投资以避免未来的损害,因此适应是由贴现率决定的。虽然社会贴现率在气候政策设计中的作用已被充分证明,但私人贴现率的作用却被忽视了。我们通过实证证明家庭贴现率如何与中美洲储水箱投资负相关,说明了私人贴现率在形成适应投资中的重要性。私人部门的高贴现率在世界各地都很普遍,这是私人适应投资的障碍。为了克服这一障碍,针对私人行为体的适应政策应确保尽早获得效益,或降低或推迟成本。政府或私人公司也可以提供长期贷款,利用贷款人和私人借款人之间的贴现率差异。
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High discount rates by private actors undermine climate change adaptation policies

Adaptation requires investing now to avoid future damages, and thus adaptation is shaped by discount rates. Although the role of social discount rates in climate policy design has been well documented, the role of private discount rates has been ignored. We illustrate the importance of private discount rates in shaping adaptation investments by empirically demonstrating how household discount rates are negatively correlated with investments in water storage tanks in Central America. High private discount rates are common throughout the world and are a barrier to private adaptation investments. To overcome this barrier, adaptation policies targeted at private actors should ensure that benefits accrue sooner or that costs are lowered or accrue later. Governments or private companies could also offer long-term loans that exploit the differential between the discount rate of the lender and the private borrower.

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来源期刊
Climate Risk Management
Climate Risk Management Earth and Planetary Sciences-Atmospheric Science
CiteScore
8.20
自引率
4.50%
发文量
76
审稿时长
30 weeks
期刊介绍: Climate Risk Management publishes original scientific contributions, state-of-the-art reviews and reports of practical experience on the use of knowledge and information regarding the consequences of climate variability and climate change in decision and policy making on climate change responses from the near- to long-term. The concept of climate risk management refers to activities and methods that are used by individuals, organizations, and institutions to facilitate climate-resilient decision-making. Its objective is to promote sustainable development by maximizing the beneficial impacts of climate change responses and minimizing negative impacts across the full spectrum of geographies and sectors that are potentially affected by the changing climate.
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