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Weather variability risks slow climate adaptation: An empirical analysis of forestry 天气变化风险减缓气候适应:林业实证分析
IF 4.6 3区 经济学 Q1 BUSINESS Pub Date : 2024-05-01 DOI: 10.1016/j.jeem.2024.103000
Kelsey K. Johnson , David J. Lewis

The timing of climate adaptation decisions can have substantial consequences for the assessment of climate damages. Since weather variability can create risks for natural resource management that differ across adaptation choices, such variability has the potential to alter the speed of climate adaptation. This paper estimates the effect of weather variability on the timing of adaptation decisions of forest landowners in the Eastern United States. A discrete-choice econometric model of forest management is estimated and used in a bio-economic simulation that shows how variability in cold temperatures can significantly slow the rate of adapting from cold-tolerant natural hardwood forests to cold-sensitive, but highly valuable pine plantations. The range of weather variability in climate projections and across the landscape generates large differences in adaptation timing. Ignoring projected future decreases in weather variability results in a large downward bias in estimating future paths of climate adaptation. Since pine plantations produce fewer non-market ecosystem services than natural hardwood forests, an important source of future conservation uncertainty is the economic response of private forest landowners to changing weather variability.

气候适应决策的时机会对气候损害评估产生重大影响。由于天气的多变性会给自然资源管理带来风险,而不同的适应选择会产生不同的风险,因此这种多变性有可能改变气候适应的速度。本文估算了天气多变性对美国东部林地所有者适应决策时间的影响。本文估算了森林管理的离散选择计量经济模型,并将其用于生物经济模拟,该模拟显示了低温变异如何显著减缓从耐寒的天然硬木林到对寒冷敏感但价值极高的松树人工林的适应速度。气候预测中的天气变异范围以及整个地貌的天气变异范围会导致适应时间上的巨大差异。如果忽略未来天气变异性下降的预测,在估算未来气候适应路径时就会出现很大的向下偏差。由于松树人工林产生的非市场生态系统服务少于天然硬木林,未来保护不确定性的一个重要来源是私有林地所有者对天气变化的经济反应。
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引用次数: 0
Efficacy of hypothetical bias mitigation techniques: A cross-country comparison 假设性偏差缓解技术的功效:跨国比较
IF 4.6 3区 经济学 Q1 BUSINESS Pub Date : 2024-05-01 DOI: 10.1016/j.jeem.2024.102989
Jerrod Penn , Wuyang Hu , Tao Ye

Hypothetical Bias (HB) remains challenging for practitioners of stated preference approaches. One elusive idea is the extent to which country and culture may affect HB's magnitude and the efficacy of mitigation methods. This paper implements both real and hypothetical elicitation in the United States and China in the context of a field survey and experiment for battery recycling containers to establish the extent of HB. It compares multiple HB mitigation strategies, namely Cheap Talk, Ex Ante Consequentiality, and Certainty Follow-up in the two countries. Results show that a significant amount of actual HB exists. The ex ante methods are ineffective at reducing HB in both countries. The Certainty Follow-up method can be effective but can overcorrect, especially for the Chinese sample. Results also indicate that comparing the efficacy of different mitigation strategies based on only hypothetical scenarios (potential HB) across countries may lead to erroneous conclusions. This study calls for treating country and cultural differences more seriously when conducting international valuation work.

假定偏差(HB)对于陈述偏好方法的实践者来说仍然具有挑战性。一个难以捉摸的想法是,国家和文化可能会在多大程度上影响 HB 的程度以及缓解方法的效果。本文通过对电池回收容器的实地调查和实验,在美国和中国实施了真实和假设的诱导,以确定 HB 的程度。本文比较了两国的多种 HB 缓解策略,即 "廉价谈话"、"事前后果 "和 "确定性跟踪"。结果表明,实际存在大量的有害健康物质。在这两个国家,事前方法在减少 HB 方面效果不佳。确定性跟踪法虽然有效,但会过度矫正,尤其是对中国样本而言。研究结果还表明,仅根据假设情景(潜在的 HB)来比较不同国家不同缓解策略的效果可能会导致错误的结论。本研究呼吁在开展国际评估工作时,应更认真地对待国家和文化差异。
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引用次数: 0
Are facemasks effective against particulate matter pollution? Evidence from the field 口罩能有效防止颗粒物污染吗?来自实地的证据
IF 4.6 3区 经济学 Q1 BUSINESS Pub Date : 2024-05-01 DOI: 10.1016/j.jeem.2024.103001
Ke Chen , Yazhen Gong , Jinhua Zhao

The use of anti-pollution facemasks (APFs) in defense against particulate matter (PM) pollution is subject to debate as air pollution and wildfire events intensify. Inward leakage due to imperfect fitting and the Peltzman effect of people spending more time outdoors when wearing masks have led to mixed evidence regarding the effectiveness of APFs, which in turn has contributed to conflicting public messages about APFs with potentially large public health costs. We conduct a large-scale randomized field study on individuals' daily outdoor time and mask wearing behaviors and the associated health outcomes during an entire winter heating season in a provincial capital city in Northeastern China. We find that APFs used in everyday life achieved an overall efficiency of 80% in reducing respiratory or cardiovascular disease related doctor visits. Mask wearing, due to its discomfort, reduced outdoor time. However, the added protection provided by masks against PM led respondents to spend more time outdoors on smog days, and this relative Peltzman effect wiped out about 12% of APFs' health benefits. Taken together, APFs’ health benefits far exceed their financial costs. These findings call for affirmatory but careful messaging to the public about using APFs as personal protection against PM pollution.

随着空气污染和野火事件的加剧,使用防污染口罩(APF)抵御微粒物质(PM)污染的问题备受争议。由于不完全贴合造成的向内泄漏以及人们戴口罩时户外活动时间更长的佩尔兹曼效应,导致有关防污染口罩效果的证据不一,这反过来又造成了有关防污染口罩的公众信息相互矛盾,并可能造成巨大的公共卫生成本。我们在中国东北某省会城市开展了一项大规模随机实地研究,调查了个人在整个冬季采暖季的日常户外活动时间、佩戴口罩行为以及相关的健康结果。我们发现,日常生活中使用的口罩在减少与呼吸道或心血管疾病相关的就诊率方面达到了 80% 的总体效率。戴口罩会带来不适,从而减少户外活动时间。然而,口罩对可吸入颗粒物的额外保护作用导致受访者在雾霾天的户外活动时间增加,这种相对的佩尔兹曼效应抹去了约 12% 的自动防护设备的健康益处。综上所述,汽车空调的健康效益远远超过其经济成本。这些研究结果要求我们向公众发出肯定但谨慎的信息,让他们了解如何使用防毒面具作为个人防护措施来抵御可吸入颗粒物污染。
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引用次数: 0
Distributional effects of the increasing heat incidence on labor productivity 高温天气对劳动生产率的分配影响
IF 4.6 3区 经济学 Q1 BUSINESS Pub Date : 2024-05-01 DOI: 10.1016/j.jeem.2024.102998
Jingfang Zhang , Emir Malikov , Ruiqing Miao

This paper examines how temperature affects worker productivity beyond the usual “on average” analysis, with a particular focus on distributional impacts of the increasing heat incidence across high- and low-productivity areas. Using a recentered influence function regression approach, we estimate unconditional reduced-form effects of a location shift in the temperature distribution—consistent with climate change trends—on the labor productivity distribution across counties in the contiguous U.S. We find that labor productivity is largely insensitive to changes in the frequency of cool-to-moderate maximum daily temperatures. However, as temperatures shift above 24C, the effects on productivity turn increasingly negative, albeit with their magnitudes attenuating as a county’s productivity rank rises. While highly productive locations in the top 5% are not adversely impacted even by the hottest temperatures, permanently increasing the incidence of 36C temperatures just by a day lowers productivity at the bottom vigintile by a nontrivial 0.22% per year, an equivalent of 10.5 hours of work by a minimum-wage worker. As temperatures continue to rise, not only does worker productivity worsen on average, but the cross-county dispersion therein widens too. Given existing climate forecasts, we predict that future extreme temperatures would further deepen worker productivity inequality.

本文在通常的 "平均 "分析之外,探讨了气温对工人生产率的影响,尤其关注了高温对高生产率地区和低生产率地区的分布影响。我们使用重定向影响函数回归方法,估算了气温分布位置变化(与气候变化趋势一致)对美国毗连地区各县劳动生产率分布的无条件简化形式影响。然而,当气温超过 24∘C 时,对生产率的影响会越来越负面,尽管随着县域生产率排名的上升,影响幅度会减弱。位于前 5%的高生产力地区即使在最炎热的气温下也不会受到不利影响,但如果≥36∘C 的气温持续增加一天,就会使最底层的生产力每年降低 0.22%,相当于最低工资工人工作 10.5 个小时。随着气温的不断升高,不仅工人的平均生产率会下降,而且其跨县分散性也会扩大。鉴于现有的气候预测,我们预测未来的极端气温将进一步加深工人生产率的不平等。
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引用次数: 0
A rationale for the Right-to-Development climate policy stance? 发展权气候政策立场的理由?
IF 4.6 3区 经济学 Q1 BUSINESS Pub Date : 2024-05-01 DOI: 10.1016/j.jeem.2024.102981
Dorothée Charlier , Aude Pommeret , Francesco Ricci

We present a formal model that analyzes the trade-offs between environmental policy and economic growth in a developing economy. The adoption of restrictive environmental policies limits the use of abundant fossil energy resources, which may slow down economic development and thus violate the Right-to-Development. If faster economic growth allows a country to grow out of pollution sooner, less stringent policies are good for growth and even for the environment, having adopted a long-term horizon. Accounting for a ceiling on cumulative emissions can reinforce the argument by providing an additional rationale to phase out pollution. One assumption is crucial for the argument to hold: polluting fossil energy is an essential input over the early phase of economic development, but not in the later phases. Such a discontinuity could result from structural change. We provide empirical evidence for the plausibility of a discontinuity in the elasticity of carbon dioxide emissions with respect to aggregate output, using cross country data, even if it does not appear to be as strong as assumed in the model economy.

我们提出了一个正式模型,分析发展中经济体环境政策与经济增长之间的权衡。采取限制性环境政策会限制丰富的化石能源资源的使用,这可能会减缓经济发展,从而侵犯发展权。如果较快的经济增长能让一个国家更快地摆脱污染,那么采用较宽松的政策有利于经济增长,甚至有利于环境的长远发展。考虑累积排放的上限可以加强这一论点,为逐步淘汰污染提供额外的理由。有一个假设对这一论点的成立至关重要:在经济发展的早期阶段,污染化石能源是必不可少的投入,但在后期阶段则不是。这种不连续性可能是结构变化造成的。我们利用跨国数据提供了经验证据,证明二氧化碳排放相对于总产出的弹性存在不连续性,尽管这种不连续性似乎没有模型经济中假设的那么强。
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引用次数: 0
Unregulated contaminants in drinking water: Evidence from PFAS and housing prices 饮用水中不受管制的污染物:来自全氟辛烷磺酸和房价的证据
IF 4.6 3区 经济学 Q1 BUSINESS Pub Date : 2024-05-01 DOI: 10.1016/j.jeem.2024.102987
Michelle Marcus , Rosie Mueller

Our understanding of individuals’ response to information about unregulated contaminants is limited. We leverage the highly publicized social discovery of unregulated PFAS (per- and polyfluoroalkyl substances) contamination in public drinking water to study the impact of information about unregulated contaminants on housing prices. Using residential property transaction data, we employ a difference-in-differences research design and show that high profile media coverage about PFAS contamination significantly decreased property values of affected homes. We also find suggestive evidence of residential sorting that may have worsened environmental inequality.

我们对个人对非管制污染物信息的反应了解有限。我们利用社会高度关注的公共饮用水中未受管制的 PFAS(全氟烷基和多氟烷基物质)污染事件,研究未受管制的污染物信息对房价的影响。利用住宅物业交易数据,我们采用了差异研究设计,结果表明,媒体对 PFAS 污染的高调报道显著降低了受影响住宅的物业价值。我们还发现了住宅排序的暗示性证据,这可能加剧了环境不平等。
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引用次数: 0
Importing air pollution? Evidence from China’s plastic waste imports 进口空气污染?中国进口塑料垃圾的证据
IF 4.6 3区 经济学 Q1 BUSINESS Pub Date : 2024-05-01 DOI: 10.1016/j.jeem.2024.102996
Kerstin Unfried , Feicheng Wang

Plastic waste trade has grown considerably in the last decades and has led to severe environmental problems in recipient countries. Being the largest recipient, China has permanently banned the imports of plastic waste since 2018. This paper examines the causal effect of plastic waste imports on air pollution by exploiting China’s experience of importing plastic waste and the recent import ban. By combining data on plastic waste imports with PM2.5 data at the city level for the years 2000–2011, we find that plastic waste imports increased PM2.5 density significantly in recipient cities. To evaluate the impact of the import ban on air quality, we employ daily data on air pollution between 2015 and 2020. Our difference-in-differences results show that affected cities, relative to other cities, experienced considerable improvement in air quality following the ban. Further analysis reveals that increased incineration of non-recycled waste is the main channel. These findings provide insights into the costs of importing plastic waste and the potential environmental gains from banning such imports in other countries.

过去几十年来,塑料垃圾贸易大幅增长,导致接受国出现严重的环境问题。作为最大的接收国,中国自 2018 年起永久禁止进口塑料垃圾。本文利用中国进口塑料废物的经验和近期的进口禁令,研究塑料废物进口对空气污染的因果效应。通过将 2000-2011 年塑料垃圾进口数据与城市层面的 PM2.5 数据相结合,我们发现塑料垃圾进口显著增加了接收城市的 PM2.5 密度。为了评估进口禁令对空气质量的影响,我们采用了 2015 年至 2020 年间的每日空气污染数据。我们的差分结果显示,相对于其他城市,受影响城市的空气质量在禁令实施后有了显著改善。进一步的分析表明,非回收垃圾焚烧量的增加是主要原因。这些发现让我们深入了解了其他国家进口塑料垃圾的成本以及禁止进口塑料垃圾可能带来的环境收益。
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引用次数: 0
Pricing carbon in a multi-sector economy with social discounting 多部门经济中的碳定价与社会折扣
IF 4.6 3区 经济学 Q1 BUSINESS Pub Date : 2024-05-01 DOI: 10.1016/j.jeem.2024.102991
Oliver Kalsbach , Sebastian Rausch

Economists tend to view a uniform emissions price as the most cost-effective approach to reducing greenhouse gas emissions. This paper scrutinizes the assumptions in general equilibrium which underlie the established view that uniform emissions pricing is optimal, focusing on economies where society values the well-being of future generations more than private actors. When social and private discount rates differ, we show that a uniform carbon price is optimal only under restrictive assumptions about technology homogeneity and intertemporal decision-making. Non-uniform pricing spurs capital accumulation and benefits future generations. Depending on sectoral heterogeneity in the substitutability between capital and energy inputs, we find that optimal carbon prices differ widely across sectors and yield substantial welfare gains relative to uniform pricing. Realizing these welfare gains, however, requires that the regulator has information on the technology heterogeneity across sectors. Differentiated carbon pricing based on imperfect estimates of technology heterogeneity can yield significant welfare losses.

经济学家倾向于将统一排放价格视为减少温室气体排放最具成本效益的方法。本文仔细研究了一般均衡中的假设,这些假设是统一排放定价最优这一既定观点的基础,重点关注社会比私人行为者更重视后代福祉的经济体。当社会贴现率和私人贴现率不同时,我们表明,只有在技术同质性和跨期决策的限制性假设下,统一碳价格才是最优的。非统一定价会刺激资本积累,使后代受益。根据资本和能源投入之间可替代性的部门异质性,我们发现不同部门的最优碳价格差异很大,相对于统一定价,最优碳价格能带来巨大的福利收益。然而,要实现这些福利收益,需要监管机构掌握各部门技术异质性的信息。根据对技术异质性的不完全估计进行差别碳定价,可能会产生巨大的福利损失。
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引用次数: 0
Adjusted net savings needs further adjusting: Reassessing human and resource factors in sustainability measurement 调整后的净节余需要进一步调整:重新评估可持续性衡量中的人力和资源因素
IF 4.6 3区 经济学 Q1 BUSINESS Pub Date : 2024-04-30 DOI: 10.1016/j.jeem.2024.102984
John C.V. Pezzey

We build a theoretical model of optimal, closed-economy growth of production and consumption, including inputs of human and knowledge capital and growing natural resources, and give two calibrations of it to the global economy's approximately exponential growth during 1995–2014. We thereby show that the World Bank's Adjusted Net Savings (ANS) measure of an economy's sustainability, which has some practical and theoretical advantages over change in wealth, the Bank's preferred measure, ideally needs further adjusting. Our model includes omitted or undervalued estimates of the benefits of human and knowledge capital investment, net resource growth, and productivity growth, and the cost of capitals dilution by population growth. Together these raise estimated, global ANS about 10 percentage points above the Bank's estimate, to equal their growth rate times total wealth, but our adjustments could be negative overall for some countries. By reclassifying about 18% of output from consumption to human and knowledge capital investments, our second calibration needs only 0.3 %/yr of exogenous productivity growth to explain global consumption growth observed during 1995–2014. Though our model omits environmental costs and thus ignores long-run sustainability issues, our adjustments suggest desirable though difficult changes that could improve World Bank ANS as a comparative sustainability indicator.

我们建立了一个封闭经济中生产和消费最优增长的理论模型,其中包括人力资本、知识资本和不断增长的自然资源的投入,并对 1995-2014 年间全球经济的近似指数增长进行了两次校准。由此我们可以看出,世界银行的 "调整后净储蓄"(ANS)衡量一个经济体的可持续性,与世界银行首选的衡量标准--财富变化相比,具有一些实践和理论上的优势,但理想情况下需要进一步调整。我们的模型包括对人力和知识资本投资、净资源增长和生产率增长所带来的收益的遗漏或低估估计,以及人口增长对资本稀释的成本。这些因素加在一起,使估计的全球 ANS 比世界银行的估计值高出约 10 个百分点,相当于其增长率乘以财富总量,但我们的调整对某些国家来说可能是负值。通过将约 18% 的产出从消费重新归类为人力和知识资本投资,我们的第二次校准只需要每年 0.3% 的外生生产力增长就能解释 1995-2014 年间观察到的全球消费增长。虽然我们的模型忽略了环境成本,从而忽略了长期可持续性问题,但我们的调整建议进行理想但困难的改革,以改善作为比较可持续性指标的世界银行国民核算体系。
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引用次数: 0
Cross-ownership and green managerial delegation contracts in a mixed oligopoly 混合寡头垄断中的交叉所有权和绿色管理委托合同
IF 4.6 3区 经济学 Q1 BUSINESS Pub Date : 2024-04-29 DOI: 10.1016/j.jeem.2024.102993
Mingqing Xing , Sang-Ho Lee

This study examines strategic interactions between cross-ownership and managerial delegation contracts with environmental corporate social responsibility (ECSR) incentives in a mixed oligopoly. We find that private firms always utilize ECSR incentives in competing prices under cross-ownership, whereas public managers do so only when there is severe environmental damage. We also demonstrate that the ECSR incentives for welfare-weighted public managers are always lower than for their profit-weighted counterparts when they employ ECSR incentives, which leads to lower environmental damage and greater social welfare. Finally, we show that welfare-weighted public delegation increases the private firm's ECSR compared to no public delegation, which is reversed in the profit-weighted variant. Our findings suggest that the government should design an environmental incentive scheme to their public managers that can also induce private managers to behave more aggressively in abatement activities as the degree of cross-ownership increases.

本研究探讨了在混合寡头垄断中,交叉所有权与带有环境企业社会责任(ECSR)激励机制的管理委托合同之间的战略互动关系。我们发现,在交叉所有权条件下,私营企业总是利用环境企业社会责任激励机制进行价格竞争,而公共管理者只有在出现严重环境损害时才会这样做。我们还证明,当福利加权的公共管理者采用 ECSR 激励机制时,他们的 ECSR 激励机制总是低于利润加权的公共管理者,从而导致更低的环境损害和更高的社会福利。最后,我们发现福利加权的公共授权会增加私营企业的 ECSR,而利润加权的公共授权则相反。我们的研究结果表明,随着交叉所有权程度的增加,政府应该为其公共管理者设计一个环境激励计划,该计划也能促使私人管理者在减排活动中表现得更加积极。
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引用次数: 0
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Journal of Environmental Economics and Management
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