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Breaks and Breakouts: Explaining the Persistence of COVID-19 突破和爆发:解释COVID-19的持续存在
Pub Date : 2021-01-27 DOI: 10.2139/ssrn.3775506
Björn Thor Arnarson
This paper investigates the role of large-outbreaks on the persistence of Covid-19 over time. Using data from 649 European regions in 14 countries, I first show that school-breaks in late February/early March (weeks 8, 9 and 10) led to large regional outbreaks of Covid-19 in the spring with the spread being 60% and up-to over 90% higher compared to regions with earlier breaks. While the impact of these initial large-outbreaks fades away over the summer months it systematically reappears from the fall as regions with school-breaks in weeks 8, 9 and 10 had 30-70% higher spread. This suggests that following a large-outbreak there is a strong element of underlying (latent) regional persistence of Covid-19. The strong degree of persistence highlights the long-term benefits of effective (initial) containment policies as once a large outbreak has occurred, Covid-19 persists. This results emphasizes the need for vaccinations against Covid-19 in regions that have experienced large outbreaks, but are well below herd-immunity, to avoid a new wave of cases from the fall of 2021.
本文研究了大规模疫情对Covid-19持续存在的作用。利用来自14个国家649个欧洲地区的数据,我首先表明,2月底/ 3月初(第8、9和10周)的学校假期导致了春季Covid-19的大规模区域性爆发,与放假时间较早的地区相比,传播率高出60%,最高可达90%以上。虽然这些最初的大规模疫情的影响在夏季逐渐消失,但从秋季开始系统性地重新出现,因为在第8、9和10周学校放假的地区,传播率高出30-70%。这表明,在大规模暴发之后,Covid-19存在潜在(潜伏)区域持续存在的强烈因素。这种持续的程度突出了有效(初步)遏制政策的长期效益,因为一旦发生大规模疫情,Covid-19就会持续存在。这一结果强调,在经历过大规模疫情但远低于群体免疫力的地区,需要接种Covid-19疫苗,以避免从2021年秋季开始出现新的病例浪潮。
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引用次数: 1
The Effect of the COVID-19 Pandemic on Oil Prices: Evidence From Turkey 新冠肺炎疫情对油价的影响:来自土耳其的证据
Pub Date : 2021-01-26 DOI: 10.46557/001C.18723
M. Kartal
This study examines the reaction of local currency oil prices to the COVID-19 pandemic using Turkish daily data (July 25, 2019 to October 30, 2020). A multivariate adaptive regression splines model is employed that considers foreign exchange (USD-TRY), credit default swap spread, global uncertainty, and global volatility as control variables. The findings show that: (i) the volatility index influences oil prices most regardless of the sample size; and (ii) the COVID-19 pandemic affects the importance of effective variables on the local currency oil prices in Turkey.
本研究使用土耳其每日数据(2019年7月25日至2020年10月30日)考察了本币油价对COVID-19大流行的反应。采用多元自适应回归样条模型,考虑外汇(美元- try)、信用违约互换价差、全球不确定性和全球波动率作为控制变量。研究结果表明:(1)无论样本量大小,波动率指数对油价的影响最大;(ii) 2019冠状病毒病大流行影响了土耳其本币油价的有效变量的重要性。
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引用次数: 23
Sodium Intake in the U.S.: Evidence From Scanner Data 美国的钠摄入量:来自扫描仪数据的证据
Pub Date : 2021-01-22 DOI: 10.2139/ssrn.3751512
C. Rojas, Ezgi Cengiz
Diet quality can be improved via two factors: healthier product offerings by food manufacturers and healthier purchasing habits of consumers. In this paper, we take a closer look at sodium, a food constituent identified as an important determinant of several acute health problems. In 2009, food manufacturers in the U.S. voluntarily committed to substantial reductions in sodium content through a self-regulatory process known as the National Salt Reduction Initiative (NSRI). The NSRI set sodium reduction targets for 2012 and 2014, where the targets were based on a sales-weighted average of the sodium content across products. While the existing evidence suggests that the NSRI was partially successful in reducing sodium intake, a limitation of using a sales-weighted measure as a metric is that it conflates two effects: reformulation efforts by food manufacturers (the focal point of the initiative) and changes in consumer purchasing behavior. In this paper, we use UPC-level nutrition data on the near-universe of all packaged food products in the U.S. over 2007-2015 to quantify each effect. We find that the two effects exerted strikingly opposing forces, nearly canceling each other out: while reformulation efforts contribute to a 53% reduction in sodium intake, the changes in consumer shopping behavior increase the intake by 48.3%. Furthermore, our results show that lower income households as well as ethnic and racial minority groups experience the smallest sodium reductions. The results suggest that policy interventions towards reducing the sodium intake should focus on altering consumer behavior, especially in vulnerable populations.
饮食质量可以通过两个因素得到改善:食品制造商提供的更健康的产品和消费者更健康的购买习惯。在本文中,我们仔细研究了钠,一种被确定为几种急性健康问题的重要决定因素的食物成分。2009年,美国的食品制造商自愿承诺通过一个被称为国家减盐倡议(NSRI)的自我监管程序大幅减少钠含量。NSRI制定了2012年和2014年的减钠目标,这些目标是基于所有产品的钠含量的销售加权平均值。虽然现有证据表明NSRI在减少钠摄入量方面取得了部分成功,但使用销售加权衡量作为衡量标准的局限性在于它合并了两种影响:食品制造商的重新配方努力(该倡议的焦点)和消费者购买行为的变化。在本文中,我们使用了2007-2015年美国所有包装食品近宇宙的upc级营养数据来量化每种影响。我们发现,这两种影响产生了明显相反的力量,几乎相互抵消:虽然重新配方的努力有助于减少53%的钠摄入量,但消费者购物行为的改变使摄入量增加了48.3%。此外,我们的研究结果表明,低收入家庭以及少数民族和种族群体的钠摄入量减少幅度最小。研究结果表明,减少钠摄入量的政策干预应侧重于改变消费者的行为,特别是在弱势群体中。
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引用次数: 0
Once índices bursátiles 2007- 7 enero 2021 y desempleo en 30 países 2000-2020 (Eleven Stock Market Indices 2007- January 7, 2021 and Unemployment in 30 Countries 2000-2020) Once índices bursátiles 2007- 7 enero 2021 y desempleo en 30 países 2000-2020(11个股票市场指数2007- 2021年1月7日和30个国家的失业率2000-2020)
Pub Date : 2021-01-13 DOI: 10.2139/SSRN.3765352
Pablo Fernández, Sofia Bañuls
Spanish Abstract: Se compara la evolucion de once indices bursatiles en el periodo 2007- 7 enero 2021 y se comparan los descensos de la “crisis del coronavirus” y los de la crisis de 2007… (financiera en algunos paises, politica-regulatoria-inmobiliaria-financiera en otros…), que en algunos paises puede darse por solucionada y en otros todavia no. El indice menos rentable en 2019-2020 fue el espanol IBEX 35. Tambien se muestra la evolucion del desempleo en 30 paises en el periodo 2000-2020. Los dos paises con mayor desempleo en febrero de 2013 y en 2020 fueron Grecia y Espana. English Abstract: The evolution of eleven stock market indices in the period 2007-7 January 2021 is compared and the declines of the “coronavirus crisis” are compared with those of the 2007 crisis… (financial in some countries, policy-regulatory-real estate-financial in others ...), which in some countries may be considered resolved and in others not yet. The least profitable index in 2019-2020 was the Spanish IBEX 35. The evolution of unemployment in 30 countries in the period 2000-2020 is also shown. The two countries with the highest unemployment in February 2013 and in 2020 were Greece and Spain.
11索引[Abstract:比较evolucion bursatiles 2021在2007年1月- 7和比较万和coronavirus危机”和“2007年...(在一些国家金融危机,politica-regulatoria-inmobiliaria-financiera其他...),在一些国家可能都准备好和其他没有。2019-2020年利润最低的指数是西班牙的IBEX 35。它还显示了30个国家在2000-2020年期间的失业趋势。2013年2月和2020年失业率最高的两个国家是希腊和西班牙。English Abstract: The evolution of 11 stock market条目in The period 2007-7 January 2021 is算不上and The declines of The coronavirus危机”are算不上相对of The 2007年危机... (financial in some countries, policy-regulatory-real estate-financial in其他人...),which in some countries may视为其他人尚未得到解决。= =地理= =根据美国人口普查,该地区的总面积为,其中土地和(1.2%)水。还介绍了2000-2020年期间30个国家失业情况的演变情况。2013年2月和2020年失业率最高的两个国家是希腊和西班牙。
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引用次数: 0
Taxation and Banking Challenges for Medical Marijuana 医用大麻的税收和银行挑战
Pub Date : 2021-01-01 DOI: 10.2139/ssrn.3837662
Philip MacFarlane
Discussion of the treatment of medical marijuana companies under §280E of the Internal Revenue Code and under federal banking regulations.
讨论根据《国内税收法》第280E条和联邦银行法规对医用大麻公司的处理。
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引用次数: 0
Financing COVID-19 Deficits in Fiscally Dominant Economies: Is The Monetarist Arithmetic Unpleasant? 为财政主导经济体的COVID-19赤字融资:货币主义者的计算令人不快吗?
Pub Date : 2020-12-30 DOI: 10.2139/ssrn.3766673
Martin Uribe
The coronavirus pandemic of 2019-20 confronted fiscally dominant regimes around the world with the question of whether the large deficits caused by the health crisis should be monetized or financed by issuing debt The unpleasant monetarist arithmetic of Sargent and Wallace (1981) states that in a fiscally dominant regime tighter money now can cause higher inflation in the future In spite of the qualifier 'unpleasant,' this result is positive in nature, and, therefore, void of normative content I analyze conditions under which it is optimal in a welfare sense for the central bank to delay inflation by issuing debt to finance part of the fiscal deficit The analysis is conducted in the context of a model in which the aforementioned monetarist arithmetic holds, in the sense that if the government finds it optimal to delay inflation, it does so knowing that it would result in higher inflation in the future The central result of the paper is that delaying inflation is optimal when the fiscal deficit is expected to decline over time [ABSTRACT FROM AUTHOR] Copyright of East Asian Economic Review (EAER) is the property of Korea Institute for International Economic Policy and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission However, users may print, download, or email articles for individual use This abstract may be abridged No warranty is given about the accuracy of the copy Users should refer to the original published version of the material for the full abstract (Copyright applies to all Abstracts )
2019- 2020年的冠状病毒大流行使世界各地财政占主导地位的政权面临这样一个问题:卫生危机造成的巨额赤字是应该货币化,还是应该通过发行债务来融资。萨金特和华莱士(1981)令人不快的货币主义算法指出,在财政占主导地位的政权中,现在收紧的货币政策可能会导致未来更高的通货膨胀。我分析了央行通过发行债券来为部分财政赤字融资来延缓通货膨胀在福利意义上是最优的条件。分析是在上述货币主义算法成立的模型背景下进行的,从某种意义上说,如果政府发现延缓通货膨胀是最优的,它知道它会导致更高的通货膨胀在未来中央论文的结果是,推迟通货膨胀时最优财政赤字预计将下降随着时间的抽象从作者版权的东亚经济评论(衣料)是韩国对外经济政策研究院的性质及其内容不得复制或发送多个站点或者粘贴到其实没有版权持有人的书面许可,用户可以打印、下载或通过电子邮件发送文章供个人使用,本摘要可能会被删节,但不保证副本的准确性,用户应参考原始发布的完整摘要(版权适用于所有摘要)。
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引用次数: 1
Russian Industrial Sector in November 2020 2020年11月俄罗斯工业部门
Pub Date : 2020-12-15 DOI: 10.2139/ssrn.3749984
S. Tsukhlo
The enterprises needed three months to overcome the April decline in demand, and in July, the estimates reached the pre-crisis level. Then there was a three-month pause, followed by growing demand, according to manufacturers’ estimates. The growth rate of sales increased by 9 p.p. in November after an interruption in August-October.
企业用了3个月的时间才克服了4月份需求下降的影响,7月份的预期达到了危机前的水平。根据制造商的估计,随后是三个月的停顿,随后是需求增长。在8 - 10月中断后,11月的销售增长率上升了9个百分点。
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引用次数: 0
Cinderella's Slipper: A Better Approach to Regulating Cryptoassets as Securities 灰姑娘的拖鞋:将加密资产作为证券进行监管的更好方法
Pub Date : 2020-12-07 DOI: 10.2139/ssrn.3744254
Carol R. Goforth
The Securities and Exchange Commission (SEC) seeks both to protect investors and to promote efficient capital formation, but in the context of cryptoassets these goals sometimes collide. The SEC vigorously reacts to fraudulent offerings of cryptoassets but has had to do so by forcing crypto into an antiquated framework designed with very different interests in mind. Even worse than the convoluted and complex arguments needed to force crypto into the existing category of “investment contracts,” once crypto is treated as a security, a host of onerous and inapt disclosure requirements and regulations follow. Developers, promoters, exchanges, and others who might assist in the sale of such assets are all forced into a regime that was never intended to cover this new class of assets.

This Article therefore suggests changes to the existing regulatory regime to more fairly apportion duties and responsibilities between regulators, issuers, promoters, and purchasers. This Article suggests that the SEC is the appropriate agency to oversee transactions in cryptoassets, but the underlying legislation should be amended to create a new category of securities, with different disclosure requirements and exemptions tailored to the informational needs of potential crypto purchasers. Maintaining the current anti-fraud rules will protect the public while allowing for innovation in this rapidly moving space. It will avoid wasting assets of both regulators and the regulated by eliminating the debate over whether crypto is or is not a security and will avoid duplication of efforts between the SEC and other federal regulators. It will also improve the relevance of available information for potential purchasers. This approach has the dual advantage of facilitating both parts of the SEC’s mission: protection of investors while supporting innovative capital formation for legitimate crypto enterprises.
美国证券交易委员会(SEC)既寻求保护投资者,又寻求促进有效的资本形成,但在加密资产的背景下,这些目标有时会发生冲突。美国证券交易委员会(SEC)对加密资产的欺诈性发行做出了积极反应,但不得不强迫加密进入一个考虑到不同利益而设计的过时框架。比迫使加密货币进入现有的“投资合同”类别所需的复杂而复杂的论据更糟糕的是,一旦加密货币被视为一种证券,就会出现大量繁重而不恰当的披露要求和法规。开发商、发起人、交易所和其他可能协助出售此类资产的人都被迫进入一个从未打算涵盖这种新资产类别的制度。因此,本文建议改变现有的监管制度,以更公平地分配监管机构、发行人、发起人和购买者之间的职责和责任。本文表明,美国证券交易委员会是监督加密资产交易的适当机构,但应修改基础立法,以创建一种新的证券类别,并根据潜在加密购买者的信息需求制定不同的披露要求和豁免。维持目前的反欺诈规则将保护公众,同时允许在这个快速变化的领域进行创新。通过消除关于加密货币是否是证券的争论,它将避免浪费监管机构和被监管机构的资产,并将避免SEC和其他联邦监管机构之间的重复工作。它还将提高现有信息对潜在购买者的相关性。这种方法具有双重优势,可以促进SEC使命的两个部分:保护投资者,同时支持合法加密企业的创新资本形成。
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引用次数: 1
When Workers Travel: Nursing Supply During Covid-19 Surges 工作人员旅行时:Covid-19激增期间的护理供应
Pub Date : 2020-12-01 DOI: 10.3386/w28240
J. Gottlieb, Avi Zenilman
We study how short-term labor markets responded to an extraordinary demand shock during the COVID-19 pandemic. We use traveling nurse jobs - a market hospitals use to fill temporary staffing needs - to examine workers' willingness to move to places with larger demand shocks. We find a dramatic increase in market size during the pandemic, especially for those specialties central to COVID-19 care. The number of jobs increased far more than compensation, suggesting that labor supply to this fringe of the nursing market is quite elastic. To examine workers' willingness to move across different locations, we examine jobs in different locations on the same day, and find an even more elastic supply response. We show that part of this supply responsiveness comes from workers' willingness to travel longer distances for jobs when payment increases, suggesting that an integrated national market facilitates reallocating workers when demand surges. This implies that a simultaneous national demand spike might be harder for the market to accommodate rapidly.
我们研究了短期劳动力市场如何应对COVID-19大流行期间的异常需求冲击。我们使用流动护士职位——医院用来填补临时人员需求的市场——来检验工人搬到需求冲击更大的地方的意愿。我们发现,在疫情期间,市场规模急剧扩大,特别是那些对COVID-19护理至关重要的专业。工作岗位数量的增长远远超过薪酬的增长,这表明护理市场边缘的劳动力供应相当有弹性。为了检验工人在不同地点之间流动的意愿,我们考察了同一天不同地点的工作,并发现了更具弹性的供应响应。我们的研究表明,这种供给响应的部分原因在于,当工资增加时,工人愿意走更远的路去找工作,这表明,当需求激增时,一个一体化的全国市场有助于重新分配工人。这意味着,如果全国需求同时飙升,市场可能更难迅速适应。
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引用次数: 5
Effects of Public Health Insurance Expansions on the Non-Healthcare Consumption Expenditures of Low-Income Households 公共医疗保险扩大对低收入家庭非医疗消费支出的影响
Pub Date : 2020-11-30 DOI: 10.2139/ssrn.3740775
T. Panchalingam
I explore patterns of non-healthcare consumption in targeted U.S. households due to public health insurance expansions. Specifically, I investigate the effects of the recent Medicaid expansions on eligible low-income households’ recurring food and other preventative non-healthcare consumption expenditures. I use a consumer panel data that deploys at-home scanner technology to track grocery purchases. Using an event-study design, and a triple difference-in-differences framework, I find that the Medicaid eligible households from expansion states spent less on fresh produce per adult and more on health and beauty products after the Medicaid expansion. Almost all the increase in the health and beauty product expenditure is due to an increase in expenditure on over-the-counter medications and remedies, which are more responsive and palliative than preventative in nature. The robust reduction in fresh produce expenditures and increase in expenditures on over-the-counter medications and remedies suggests that while expanded public health insurance increases formal healthcare activity and it decreases informal preventative non-healthcare expenditures. These new patterns of non-healthcare consumption may occur because of improved finances due to subsidized healthcare, changes in relative costs of healthcare and non-healthcare consumption, or the substitution between healthcare and preventative non-healthcare consumption. These findings may begin to shift the focus in the literature on the unintended consequences of Medicaid expansion from sins of commission, i.e., moral hazard responses such as increased smoking, alcohol use and junk food consumption, to sins of omission, i.e., responses in which preventative health habits erode.
我探讨了由于公共医疗保险的扩张,目标美国家庭的非医疗保健消费模式。具体来说,我调查了最近的医疗补助扩张对符合条件的低收入家庭经常性食品和其他预防性非医疗保健消费支出的影响。我使用了一个消费者面板数据,它部署了家用扫描仪技术来跟踪杂货购买情况。使用事件研究设计和三差中差框架,我发现,在医疗补助扩大后,来自扩大州的符合医疗补助资格的家庭在每个成年人的新鲜农产品上花费更少,在健康和美容产品上花费更多。几乎所有保健和美容产品支出的增长都是由于非处方药物和补救措施支出的增加,这些药物和补救措施在本质上更具有响应性和缓解性,而不是预防性。新鲜农产品支出的大幅减少和非处方药物和补救措施支出的增加表明,扩大的公共健康保险增加了正式的医疗保健活动,减少了非正式的预防性非医疗保健支出。这些新的非医疗保健消费模式的出现,可能是由于医疗保健补贴、医疗保健和非医疗保健消费相对成本的变化或医疗保健和预防性非医疗保健消费之间的替代而改善了财政状况。这些发现可能会开始将文献对医疗补助扩张的意外后果的关注从过失之罪(即道德风险反应,如吸烟、饮酒和垃圾食品消费增加)转移到过失之罪(即预防健康习惯被侵蚀的反应)。
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引用次数: 0
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Insurance & Financing in Health Economics eJournal
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