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Race and Environmental Worries 种族和环境问题
Pub Date : 2021-09-06 DOI: 10.2139/ssrn.3918520
Ranie Lin, Lala Ma, T. Phan
We use survey data to document a strong heterogeneity in stated degrees of worry about environmental problems across racial groups. Minorities are significantly more worried about air and water pollution than their white counterparts, even after controlling for socioeconomic factors and pollution exposure. Our finding implies that residential sorting based on heterogeneous financial resources and heterogeneous levels of environmental concern is unlikely to be the only driver of uneven exposure to pollution across racial groups.
我们使用调查数据来证明种族群体对环境问题的担忧程度存在很强的异质性。即使在控制了社会经济因素和污染暴露之后,少数族裔对空气和水污染的担忧也明显高于白人。我们的发现表明,基于不同财政资源和不同环境关注水平的居住分类不太可能是种族间污染暴露不均匀的唯一驱动因素。
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引用次数: 2
Climate Change and (a Culture of) Cooperation in the World's Most Agricultural Countries. 全球农业大国的气候变化与合作文化。
Pub Date : 2021-08-27 DOI: 10.2139/ssrn.3912442
Giacomo Benati, C. Guerriero
Overwhelming evidence suggests that a “culture of cooperation,” which is the implicit reward from cooperating in any economic activity, represents one of the most successful humanly devised social structures. Yet, our understanding of its determinants and impact is still limited. To clarify these issues, we propose a time inconsistency theory of state-building and we document that, in the world's most agricultural countries, adverse climate shocks push the nonelites to accumulate strong norms of cooperation. To illustrate, a strong culture signals the nonelites’ commitment to cooperate with the elites in joint investment activities despite the small expected payoff and encourages the elites to reciprocate by granting a more inclusive political process. These reforms, in turn, help convince the nonelites that a sufficient part of the investment returns will be shared via public good provision. Our estimates imply that the severity of droughts has two short run effects on agricultural output, a negative impact due to worse farming conditions and a positive effect due to stronger norms of trust and respect. Accordingly, policymakers should consider the direct and indirect impacts of climate change and favor endogenous cultural formation. Moreover, environmental policies should be designed through a more credible interdisciplinary approach.
大量证据表明,“合作文化”是任何经济活动中合作的隐性回报,它代表了人类设计的最成功的社会结构之一。然而,我们对其决定因素和影响的理解仍然有限。为了澄清这些问题,我们提出了国家建设的时间不一致理论,并证明,在世界上大多数农业国家,不利的气候冲击推动非精英积累强有力的合作规范。为了说明这一点,一个强大的文化标志着非精英承诺在联合投资活动中与精英合作,尽管预期回报很小,并鼓励精英通过给予更具包容性的政治进程来回报。这些改革反过来又有助于让非精英阶层相信,投资回报的很大一部分将通过提供公共产品分享。我们的估计表明,干旱的严重程度对农业产出有两种短期影响,一种是由于耕作条件恶化而产生的负面影响,另一种是由于信任和尊重规范加强而产生的积极影响。因此,决策者应考虑气候变化的直接和间接影响,并有利于内生文化的形成。此外,环境政策应该通过更可信的跨学科方法来设计。
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引用次数: 0
Strengthening Gender Justice in a Just Transition: A Research Agenda Based on a Systematic Map of Gender in Coal Transitions 在公正转型中加强性别公正:基于煤炭转型性别系统图的研究议程
Pub Date : 2021-08-01 DOI: 10.2139/ssrn.3905835
Paula Walk, Isabell Braunger, Josephine Semb, Carolin Brodtmann, P. oei, C. Kemfert
For climate change mitigation, a rapid phase-out of fossil fuels such as coal is necessary. This has far-reaching gender-specific consequences. This paper presents a systematic map of the literature that examines the impact of historical coal phase-out processes on women and their role in these processes. The search process consisted of screening over 3100 abstracts and reading 247 full-text studies. The analysis of the 73 publications ultimately included in the systematic map shows that past coal phase-outs meant both opportunities (e.g., increased labour market participation) as well as burdens for women (e.g., double burden of job and household). It becomes clear that agency within coal transitions was also gendered. For example, it was difficult for women to gain access to union structures, which led them to organise themselves into grassroots movements. Our research shows that policies aiming for a just sustainability transition should always be explicitly gender-responsive. However, the impact of sustainability transitions on women’s lives remains largely under-researched. Therefore, we propose a research agenda based on our findings containing six key issues that need to be addressed scientifically.
为了减缓气候变化,必须迅速逐步淘汰煤炭等化石燃料。这对男女有深远的影响。本文提出了一个系统的文献地图,该地图审查了历史上逐步淘汰煤炭过程对妇女的影响及其在这些过程中的作用。检索过程包括筛选3100多篇摘要和阅读247篇全文研究。对最终列入系统地图的73份出版物的分析表明,过去逐步淘汰煤炭既意味着机会(例如,增加劳动力市场的参与),也意味着妇女的负担(例如,工作和家庭的双重负担)。很明显,煤炭转型中的能动性也是有性别的。例如,妇女很难进入工会结构,这导致她们自己组织成基层运动。我们的研究表明,旨在实现公正的可持续转型的政策应该始终明确地考虑到性别问题。然而,可持续性转变对妇女生活的影响在很大程度上仍未得到充分研究。因此,我们根据我们的发现提出了一个研究议程,其中包含六个需要科学解决的关键问题。
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引用次数: 11
Demand Shocks and Supply Chain Resilience: An Agent Based Modelling Approach and Application to the Potato Supply Chain 需求冲击与供应链弹性:基于Agent的建模方法及其在马铃薯供应链中的应用
Pub Date : 2021-08-01 DOI: 10.3386/w29166
Liang Lu, R. Nguyen, Md Mamunur Rahman, Jason A. Winfree
The food supply chain has experienced major disruptions from both demand and supply sides during the Covid-19 pandemic. While some consequences such as food waste are directly caused by the disruption due to supply chain inefficiency, others are indirectly caused by a change in consumer’s preferences. As a result, evaluating food supply chain resilience is a difficult task. With an attempt to understand impacts of demand on the food supply chain, we developed an agent-based model based on the case of Idaho’s potato supply chain. Results showed that not only the magnitude but also the timing of the demand shock will have different impacts on various stakeholders of the supply chain. Our contribution to the literature is two-fold. First, the model helps explain why food waste and shortages may occur with dramatic shifts in consumer demand. Second, this paper provides a new angle on evaluating the various mitigation strategies and policy responses to disruptions beyond Covid-19.
在2019冠状病毒病大流行期间,粮食供应链经历了需求和供应方面的重大中断。虽然食物浪费等一些后果是由供应链效率低下造成的中断直接引起的,但其他后果是由消费者偏好的变化间接引起的。因此,评估食品供应链的弹性是一项艰巨的任务。为了理解需求对食品供应链的影响,我们基于爱达荷州马铃薯供应链的案例开发了一个基于主体的模型。结果表明,需求冲击的程度和时间对供应链各利益相关者的影响都是不同的。我们对文学的贡献是双重的。首先,该模型有助于解释为什么食物浪费和短缺会随着消费者需求的急剧变化而发生。其次,本文为评估Covid-19以外的各种缓解战略和政策应对措施提供了一个新的角度。
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引用次数: 5
Oil Shocks and the U.S. Economy in a Data-rich Model 石油冲击与数据丰富的美国经济模型
Pub Date : 2021-07-30 DOI: 10.2139/ssrn.3658783
Kuhelika De, Ryan A. Compton, Daniel C. Giedeman
We investigate the economic effects of three types of oil price shocks on the U.S. economy using a factor augmented vector autoregression framework and 185 monthly macroeconomic indicators from 1978 to 2017. We find that oil specific precautionary demand shocks are the main drivers of fluctuations in the price of crude oil and the U.S. price level, followed by global economic activity oil demand shocks. Further, while increases in the price of oil triggered by oil supply shocks are recessionary and lower U.S. economic activity, those triggered by global economic activity oil demand shocks are associated with increased U.S. economic activity. We also find evidence that monetary policy-makers tighten monetary policy in response to oil demand shocks to mitigate inflationary effects, however we find no such evidence for oil supply shocks. Finally, we find the U.S. dollar real exchange rate depreciates in response to increases in the price of oil caused by both oil demand and supply shocks, however the effects from oil supply shocks are more permanent.
我们使用因子增强向量自回归框架和1978年至2017年185个月度宏观经济指标,研究了三种类型的油价冲击对美国经济的经济影响。我们发现,石油特定的预防性需求冲击是原油价格和美国价格水平波动的主要驱动因素,其次是全球经济活动石油需求冲击。此外,虽然石油供应冲击引发的石油价格上涨是衰退性的,并降低了美国的经济活动,但全球经济活动引发的石油需求冲击与美国经济活动的增加有关。我们还发现有证据表明,货币政策制定者在应对石油需求冲击时收紧货币政策,以减轻通胀影响,但我们没有发现石油供应冲击的证据。最后,我们发现美元实际汇率在石油需求和供应冲击引起的石油价格上涨的反应中贬值,但石油供应冲击的影响更为持久。
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引用次数: 9
Does News Tone help forecast Oil? 新闻语调有助于预测油价吗?
Pub Date : 2021-04-28 DOI: 10.2139/ssrn.3835768
B. Lucey, Boru Ren
Abstract Does news tone help forecast oil? In this paper, we study the relationship between news tone and crude oil prices and evaluate the role news tone plays in the ability to forecast oil prices. Specifically, we use a recently developed oil-specific dictionary as well as a widely used general financial dictionary, to directly measure the sentiment of 3579 oil news articles from Financial Times for actual oil price forecasting. We find compelling evidence that news tone constructed by the oil dictionary helps forecast monthly oil prices out-of-sample over short horizons, while the news tone constructed by financial dictionary shows no out-of-sample forecasting power at all. We verify and document the economic significance of the best performing forecasting model against the others and a naive buy-hold strategy. We argue that the forecasting power of news tone is data and method dependent, and we underscore the correct use of domain-specific dictionaries in financial sentiment analysis.
新闻语气有助于预测石油吗?本文研究了新闻语气与原油价格的关系,并评价了新闻语气对原油价格预测能力的作用。具体而言,我们使用了最近开发的石油专用词典以及广泛使用的通用金融词典,直接测量金融时报3579篇石油新闻文章的情绪,以进行实际油价预测。我们发现令人信服的证据表明,石油词典构建的新闻语气有助于预测短期内每月的样本外油价,而金融词典构建的新闻语气根本没有显示出样本外的预测能力。我们验证并记录了表现最好的预测模型相对于其他模型和朴素的买入持有策略的经济意义。我们认为新闻语气的预测能力依赖于数据和方法,并强调在金融情绪分析中正确使用特定领域的词典。
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引用次数: 4
Infrastructure Development Projects and Access to Services of Farm Families 基础设施发展项目和农民家庭获得服务的机会
Pub Date : 2021-04-18 DOI: 10.2139/ssrn.3828883
June Vana, D. Vargas, C. Vallejo, P. Rafael, P. Hail
In general, the study aimed to determine the infrastructure development projects and access to services of farm families. This study used a descriptive-quantitative correlation design. A total of 3 key informants and 90 farm families head composed of the respondents. A survey questionnaire was prepared as an instrument in gathering the required information. The mean of 51.69 years old signifies that most of the respondents' ages were at the prime working age. A majority (95.70%) of the households were headed by male farmers and have no other source of income other than farming. Concrete roads were constructed as early as 2013 and 2018 in the area of study. The frequency and time of travel of the respondents after the construction of the roads going to the market and other places were lessened/reduce. There was an increase in the frequency of respondents’ access to health services. From “sometimes”, to more often than before. Even after the construction of the infrastructure specifically classroom, school attendance and level of enrolment have no significant changes at all. After the development of the infrastructure, it can be seen that the frequency of their access to support services changes from 'seldom' to 'sometimes.' There was no difference in terms of the use of technology before and after the development of the infrastructure. It can be seen that there were no differences before and after in their frequency of access in all services in financial and market institutions.
总的来说,这项研究旨在确定基础设施发展项目和农民家庭获得服务的机会。本研究采用描述性定量相关设计。调查对象由3名关键举报人和90名农户户主组成。编写了一份调查表,作为收集所需资料的工具。平均年龄为51.69岁,表明大部分受访者的年龄处于最佳工作年龄。大多数(95.70%)家庭户主为男性农民,除务农以外没有其他收入来源。研究区域早在2013年和2018年就修建了混凝土道路。在道路建设后,受访者前往市场和其他地方的出行频率和时间有所减少。答复者获得保健服务的频率有所增加。从“有时”,到“比以前更经常”。即使在基础设施特别是教室建设之后,学校出勤率和入学率也没有明显变化。在基础设施发展之后,可以看到他们获得支持服务的频率从“很少”变为“有时”。在基础设施发展之前和之后,技术的使用并没有什么不同。可以看出,在金融和市场机构的各项服务中,他们的接入频率前后没有差异。
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引用次数: 0
The Importance of Well Yield in Groundwater Demand Specification 井产量在地下水需求规范中的重要性
Pub Date : 2021-04-13 DOI: 10.2139/ssrn.3825888
T. Mieno, Mani Rouhi Rad, Jordan F. Suter, R. Hrozencik
The implementation of effective resource management policies critically depends on accurate estimates of the price elasticity of resource demand. In the case of groundwater, previous research estimating well-level groundwater demand has largely ignored the importance of well yield, which is a physical limit on the rate of groundwater extraction. In this research, we empirically estimate the price elasticity of demand for groundwater using well-level data from Colorado. Our results demonstrate that when well yield is omitted, price elasticity is overestimated. This in turn creates inaccurate predictions of the effect of price-based conservation policies on groundwater use and welfare impacts.
有效的资源管理政策的实施关键取决于对资源需求价格弹性的准确估计。就地下水而言,以往估算井位地下水需求的研究在很大程度上忽略了井产量的重要性,而井产量是地下水开采速度的物理限制。在本研究中,我们利用科罗拉多州的井位数据,对地下水需求的价格弹性进行了实证估计。我们的结果表明,当油井产量被忽略时,价格弹性被高估了。这反过来又造成了对基于价格的保护政策对地下水使用和福利影响影响的不准确预测。
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引用次数: 1
Incorporating Learning-by-Doing into Mixed Complementarity Equilibrium Models 将边做边学纳入混合互补均衡模型
Pub Date : 2021-04-04 DOI: 10.2139/ssrn.3801193
Baturay Çalci, B. Leibowicz, J. Bard, Gopika G. Jayadev
Abstract Market equilibrium models are often specified and solved as mixed complementarity problems (MCPs). These formulations combine the Karush–Kuhn–Tucker (KKT) optimality conditions of the optimization problems faced by multiple strategic players with market-clearing conditions, such that the solution to this system provides the Nash equilibrium prices and quantities. MCPs are widely applied to energy markets including those for electricity, oil, and natural gas. While researchers have made substantial progress on expanding the model features included in MCPs and on solving these problems, a limitation of existing MCPs is that they treat costs as exogenous input parameters. Therefore, MCPs have not been able to capture learning-by-doing (LBD), the empirically observed phenomenon whereby production costs tend to decline as a function of cumulative production experience. In this paper, we demonstrate the incorporation of LBD into a mixed complementarity equilibrium model. We consider two closely related, but nevertheless distinct, LBD formulations: one with discrete changes in cost from period to period, and another where cost declines continuously. Through theoretical analysis and numerical exploration, we establish the conditions under which these LBD formulations lead to convex optimization problems. Confirming convexity is important because it guarantees that their KKT conditions are sufficient for optimality. Then, we demonstrate the practical application of a mixed complementarity equilibrium model with LBD using the North American natural gas market as an example. When LBD is incorporated into the cost of liquefaction, North America exports more liquefied natural gas, which raises prices and reduces domestic consumption.
摘要市场均衡模型通常被定义为混合互补问题(mcp)。这些公式将多战略参与者面临的优化问题的KKT最优性条件与市场出清条件相结合,使得该系统的解提供了纳什均衡价格和数量。mcp广泛应用于电力、石油和天然气等能源市场。虽然研究人员在扩展mcp中包含的模型特征和解决这些问题方面取得了实质性进展,但现有mcp的一个局限性是它们将成本视为外生输入参数。因此,mcp未能捕捉到“边做边学”(LBD),这是一种经验观察到的现象,即生产成本随着累积生产经验的增加而下降。在本文中,我们证明了将LBD纳入混合互补均衡模型。我们考虑两种密切相关但又截然不同的LBD公式:一种是成本在不同时期的离散变化,另一种是成本持续下降。通过理论分析和数值探索,我们建立了这些LBD公式导致凸优化问题的条件。确认凸性很重要,因为它保证了它们的KKT条件对于最优性是充分的。然后,以北美天然气市场为例,论证了混合互补平衡模型与LBD的实际应用。当LBD被纳入液化成本时,北美出口更多的液化天然气,这提高了价格并减少了国内消费。
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引用次数: 1
Pricing Mortgage Stress. Lessons from Covid-19 and the Credit Risk Transfers. 抵押贷款压力定价。Covid-19的教训和信贷风险转移。
Pub Date : 2021-03-20 DOI: 10.2139/ssrn.3613211
Pedro Gete, Athena Tsouderou, Susan M. Wachter
We hand-collect a unique database of Credit Risk Transfers (CRTs), linked to U.S. mortgages, to study how markets price default risk from natural disasters. Exploiting heterogeneous exposure of CRTs to default risk, we estimate the increases in CRT spreads due to the landfall of two major hurricanes. We calibrate a model of credit supply to match those estimates. Market-implied mortgage rates in counties more often hit by a hurricane are 13% higher than inland counties. Also, market-implied mortgage rates would have increased by 29% due to the Global Financial Crisis, and by 21% due to the covid-19 crisis.
我们手工收集了一个与美国抵押贷款相关的独特的信用风险转移(crt)数据库,以研究市场如何为自然灾害带来的违约风险定价。利用CRT对违约风险的异质性暴露,我们估计由于两次主要飓风的登陆而导致CRT价差的增加。我们校准了一个信贷供应模型,以匹配这些估计。经常遭受飓风袭击的县的市场隐含抵押贷款利率比内陆县高13%。此外,由于全球金融危机,市场暗示的抵押贷款利率将上升29%,由于covid-19危机将上升21%。
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引用次数: 2
期刊
Econometric Modeling: Agriculture
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