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Continuous Futures Contracts Methodology for Backtesting 连续期货合约回溯测试方法
Pub Date : 2020-01-11 DOI: 10.2139/ssrn.3517736
Radovan Vojtko, Matúš Padyšák
This paper reviews the problem of futures contracts and backtesting. If the contracts are spliced together, the resulting backtest is wrong. Such a dataset would include artificial and non-existing jumps that would appear in the analysis as profits or losses. This paper aims to examine some possible solutions to the spliced futures problem. Firstly, it is essential to choose the date when the successive contracts are rolled and secondly, which adjustments would be made to the raw contract prices. Since there are many options for both key elements, it creates a broad set of possibilities. Moreover, there is no one best approach. Each algorithm has it is own pluses and minuses. We examine in the practice the first-of-month roll method and backward ratio adjustment method. Such an approach is simple and probably the best if we want to provide information about the percentual performance of the strategies.
本文综述了期货合约和回测问题。如果将合约拼接在一起,则产生的回测是错误的。这样的数据集将包括人工的和不存在的跳跃,这些跳跃将在分析中显示为利润或损失。本文旨在探讨拼接期货问题的一些可能的解决方案。首先,要选择连续合约滚动的日期;其次,对原合约价格进行哪些调整。由于这两个关键元素都有许多选项,因此它创建了广泛的可能性集。此外,没有最好的方法。每种算法都有自己的优缺点。我们在实践中检验了月首滚动法和反向比例调整法。如果我们想提供有关策略的百分比性能的信息,这种方法很简单,而且可能是最好的。
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引用次数: 1
The Social Media Risk Premium 社交媒体风险溢价
Pub Date : 2020-01-10 DOI: 10.2139/ssrn.3514826
A. Hosseini, Gergana Jostova, Alexander Philipov, R. Savickas
Using novel corporate Twitter data on all U.S. public firms, we show that firms with a Twitter account earn 50 basis points per month higher returns than similar firms without a Twitter account. This `Twitter premium' is higher among smaller firms and firms with higher fundamentals uncertainty, and is not explained by existing risk-factor models. Having a Twitter account presents opportunities for value creation but also raises social media risks. We show that a social media risk factor is priced in the cross-section of U.S. stock returns and carries a premium of 30 to 75 basis points per month controlling for other risk factors.
利用所有美国上市公司的Twitter数据,我们发现拥有Twitter账户的公司比没有Twitter账户的类似公司每月的回报率高出50个基点。这种“Twitter溢价”在规模较小的公司和基本面不确定性较高的公司中更高,并且无法用现有的风险因素模型解释。拥有一个Twitter账户为创造价值提供了机会,但也增加了社交媒体风险。我们表明,社交媒体风险因素在美国股票回报的横截面中定价,并且在控制其他风险因素的情况下,每月溢价30至75个基点。
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引用次数: 1
‘Too Big to Reform or Too Important to Miss?’ Why the EU Needs More Consistency on the Rules on Collateral and Custody of Client Assets and Client Money as Part of CMU 2.0 “太大而不能改革,还是太重要而不能错过?”为什么欧盟需要在客户资产和客户资金的抵押品和托管规则上更加一致,作为CMU 2.0的一部分
Pub Date : 2019-12-14 DOI: 10.2139/ssrn.3508665
Michael Huertas
The impending departure of the UK from the EU makes progress on Capital Markets Union all the more urgent. Unless the EU-27 takes action soon, its capital market may leave the EU along with the UK as early as the end of next year, when the transition period in the UK-EU Withdrawal Agreement (assuming agreed) is (currently) scheduled to end.

The foundation of any capital market is its infrastructure, including its arrangements for the “collateral ecosystem” (the regulatory, institutional and operational arrangements for collateral, custody, client assets and client money). Capital market infrastructure should work in an integrated fashion across the market so that issuers, investors and intermediaries can transact seamlessly. If the collateral ecosystem is the plumbing of the financial markets then it needs to be laid out in a uniform manner as opposed to a patchwork.

That is not the case today in the EU. In particular, there is no uniform single EU-wide collateral ecosystem. Although various EU Directives and Regulations have improved the workings of individual aspects of the ecosystem, such legal instruments have neither been uniformly applied across the EU nor integrated with one another. As Member States transposed EU Directives into national law, they did so in national terms in the context of national institutions.

This creates gaps in protection for market participants, particularly where they document, transact and/or hold assets in different jurisdictions. That in turn increases risk as well as transaction costs. This lowers the attractiveness of the EU capital market and hampers growth.

Creating an integrated, uniform EU-27 regime for the collateral ecosystem should therefore have high priority. Although institutional-led operational-based and thus non-legal driven changes have provided "jurisdiction agnostic" solutions that work across multiple jurisdictions free from national influences this is not a panacea to plugging the (potential) problems in the plumbing. While the Eurosystem's work on the operational system known as TARGET2 Securities is very much a step in the right direction in terms of operational-led cross-border functionality, more is needed. Some hope that new technologies (such as distributed ledger technology) and/or new entrants (e.g. FinTech) will supply what is missing. They cannot. Legislative and regulatory changes will also be required.

The question is what form they should take. Economically, the most effective measure would be the harmonisation across the EU of the laws and regulations affecting the collateral ecosystem, ideally along the lines of the most commonly used regime. Politically, however, such an approach is likely to encounter severe challenges. The question is whether EU-27 policymakers, in light of the UK's changing relationship with the remaining bloc, will take the plunge and move the discussion on fixing the plumbing from "too big to reform" to "too important
英国即将脱离欧盟,使得资本市场联盟(Capital Markets Union)的进展变得更加紧迫。除非欧盟27国尽快采取行动,否则其资本市场可能最早于明年年底与英国一起离开欧盟,届时英国-欧盟退出协议(假设达成一致)的过渡期(目前)将结束。任何资本市场的基础都是其基础设施,包括其“抵押品生态系统”的安排(对抵押品、托管、客户资产和客户资金的监管、制度和运营安排)。资本市场基础设施应该在整个市场以一体化的方式运作,以便发行者、投资者和中介机构能够无缝地进行交易。如果抵押品生态系统是金融市场的管道,那么它需要以统一的方式布局,而不是拼凑。如今的欧盟并非如此。特别是,没有统一的单一的欧盟范围内的担保生态系统。尽管各种欧盟指令和法规已经改善了生态系统各个方面的运作,但这些法律文书既没有在整个欧盟统一适用,也没有相互整合。当成员国将欧盟指令转变为国家法律时,他们是在国家机构的背景下以国家方式这样做的。这给市场参与者带来了保护方面的空白,特别是当他们在不同的司法管辖区登记、交易和/或持有资产时。这反过来又增加了风险和交易成本。这降低了欧盟资本市场的吸引力,阻碍了增长。因此,为抵押品生态系统建立一个一体化、统一的欧盟27国机制应该是当务之急。虽然由机构主导的、基于业务的、因而非法律驱动的变革提供了“与司法管辖区无关”的解决方案,这些解决方案可以跨越多个司法管辖区,不受国家影响,但这并不是解决(潜在)问题的灵丹妙药。虽然欧元体系在TARGET2证券操作系统上的工作,在以操作为主导的跨境功能方面,是朝着正确方向迈出的一步,但还需要更多。一些人希望新技术(如分布式账本技术)和/或新进入者(如FinTech)将弥补缺失。他们不能。立法和规章制度也需要改变。问题是他们应该采取什么形式。从经济上讲,最有效的措施将是在整个欧盟范围内协调影响抵押品生态系统的法律法规,最好是按照最常用的制度进行协调。然而,在政治上,这种方法可能会遇到严峻的挑战。问题在于,鉴于英国与剩余欧盟的关系不断变化,欧盟27国的政策制定者是否会冒险,将有关修复管道的讨论从“太大而不能改革”转向“太重要而不能忽视”。在回答这个问题时,本工作文件总结了关于如何实现这一目标的一些建议,这些建议在主要文件中有更详细的讨论。本工作文件的附件通过评估概念差距以及主要文件中讨论的与欧盟、爱尔兰和英国关于抵押品、客户资产和客户资金托管的规则相关的概念转换风险来支持结论。
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引用次数: 0
How to Choose the Period for Indicators 如何选择指标的周期
Pub Date : 2019-12-03 DOI: 10.2139/ssrn.3497900
Radovan Vojtko, Matúš Padyšák
The main focus of this paper is to show some principles that can be used to pick well-working periods for the evaluation of various indicators. This paper is focused on a momentum strategy based on a diversified ETFs, but the approaches are applicable in almost every strategy where the practitioners have to pick the period for the indicator. Firstly, there is an option to pick a larger set of periods to evade the risk of overfitting and the underperformance out-of-sample. Secondly, there is a possibility to make a decision based on the performance of each strategy that corresponds to the different evaluating periods. Each approach is examined concerning the momentum strategies based on 3- to 15-month momentum and results are compared also with a benchmark portfolio. Lastly, this study shows that periods that are almost fixed in the world of quantitative strategies, do not necessarily have to be the best.
本文的主要重点是展示一些可用于选择最佳工作期的原则,以评估各种指标。本文关注的是基于多元化etf的动量策略,但这些方法几乎适用于所有从业者必须为指标选择周期的策略。首先,可以选择一个更大的周期集来规避过拟合和样本外表现不佳的风险。其次,有可能根据对应于不同评估期的每个策略的表现做出决策。每一种方法都是基于3到15个月的动量策略来研究的,结果也与基准投资组合进行了比较。最后,这项研究表明,在量化策略的世界中,几乎固定的时期不一定是最好的。
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引用次数: 0
It is Not Only What You Say, But How You Say It: ESG, Corporate News, and the Impact on CDS Spreads 关键不在于你说什么,而在于你怎么说:ESG、企业新闻以及对CDS价差的影响
Pub Date : 2019-12-02 DOI: 10.2139/ssrn.3512923
Hans-Jörg Naumer, B. Yurtoglu
Abstract We assess the influence of corporate news on costs of financing for a sample of large European and U.S. firms from 2006 to 2016. Focusing on environmental, social, and governance (ESG) news items, we take into account volume (number of news items), tonality (positive, neutral, negative), and source (financial or mass media). We find that (1) the volume of ESG-related news is significantly associated with credit default swap (CDS) spreads and therefore matters for companies' refinancing costs; (2) news with positive (negative) tonality is associated with lower (higher) CDS spreads by about 4% (6%); (3) tonality matters even more for ESG-related news. These results hold for different subsamples and alternate specifications, and are relatively insensitive to omitted variables.
摘要本文以2006年至2016年的欧美大型企业为样本,评估了企业新闻对融资成本的影响。在关注环境、社会和治理(ESG)新闻项目时,我们考虑了数量(新闻项目数量)、调性(积极、中性、消极)和来源(金融或大众媒体)。我们发现(1)与esg相关新闻的数量与信用违约互换(CDS)价差显著相关,因此对公司的再融资成本有影响;(2)具有积极(消极)调性的新闻与CDS息差降低(提高)约4%(6%)相关;(3)对于与esg相关的新闻,调性更为重要。这些结果适用于不同的子样本和替代规格,并且对省略的变量相对不敏感。
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引用次数: 18
Product Intervention: Keystone of the EU Investor Protection Regime 产品干预:欧盟投资者保护制度的基石
Pub Date : 2019-12-01 DOI: 10.2139/ssrn.3440557
Veerle A. Colaert
As from January 2018, MiFIR and the PRIIPs Regulation explicitly provided national supervisors with competences to adopt measures restricting or limiting financial activities or practices or the marketing, distribution or sale of financial instruments, structured deposits and insurance-based investments. In a number of Member States, including Belgium, the national supervisor had already been granted this power by national regulation. MiFIR and the PRIIPs Regulation, however, uniformize the conditions for taking such measures. Moreover, those regulations give competences to ESMA, EBA and EIOPA to coordinate and facilitate such measures, in order to safeguard the level playing field. On top of those competences, these European Supervisory Authorities can now also temporarily prohibit or restrict the same products, activities or practices directly in the entire Union. In this contribution we first offer a discussion of the historical evolution of product intervention, including an overview of national measures taken by a number of Member States before the entry into force of the MiFIR and the PRIIPs Regulation. Next, the contents and application of the MiFIR and PRIIPs product intervention rules are scrutinised. Finally, we take a critical look at the scope of application of these provisions. We conclude that the MiFIR and PRIIPs product intervention measures are the keystone of the EU investor protection regime. The prevailing restrictive interpretation of the personal scope of application of the MiFIR product intervention measures could, however, partly undermine their efficiency. In this contribution we have argued that such interpretation is based on an incorrect reading of the scope of application of the MiFIR.
自2018年1月起,MiFIR和priip条例明确规定,国家监管机构有权采取措施,限制或限制金融活动或做法,或金融工具、结构性存款和保险投资的营销、分销或销售。在包括比利时在内的一些会员国中,国家监督员已经通过国家条例获得了这项权力。但是,MiFIR和priip条例统一了采取此类措施的条件。此外,这些条例赋予ESMA、EBA和EIOPA协调和促进这些措施的权限,以保障公平竞争的环境。除了这些权限之外,这些欧洲监管机构现在还可以在整个欧盟内直接暂时禁止或限制相同的产品、活动或做法。在这篇文章中,我们首先讨论了产品干预的历史演变,包括概述了一些成员国在MiFIR和PRIIPs法规生效之前采取的国家措施。接下来,对MiFIR和PRIIPs产品干预规则的内容和应用进行了审查。最后,我们对这些条款的适用范围进行了批判性的审视。我们得出结论,MiFIR和priip产品干预措施是欧盟投资者保护制度的基石。然而,目前对MiFIR产品干预措施的个人适用范围的限制性解释可能在一定程度上破坏其效率。在这篇文章中,我们认为这种解释是基于对MiFIR应用范围的错误解读。
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引用次数: 0
Interdependencies in the Euro Area Derivatives Clearing Network: A Multi-Layer Network Approach 欧元区衍生品清算网络的相互依赖性:多层网络方法
Pub Date : 2019-12-01 DOI: 10.2139/ssrn.3515396
Simonetta Rosati, F. Vacirca
The global nature of derivatives markets, and the presence of large key financial institutions trading in several markets across the globe, call for taking a “macro” view on the interconnections arising in the clearing network. Based on the analysis of derivatives transactions data reported under the EMIR Regulation we reconstruct the network of relationships in the centrally-cleared derivatives market and analyse its topology providing insight into its structural features. The centrally-cleared derivatives network is modelled in the form of a multiplex network where each layer is represented by a derivatives asset class market. In turn, each node represents a single counterparty in that market. On the basis of different centrality measures applied to the collapsed aggregate and to the multiplex network, the critical participants of the euro area centrally-cleared derivatives market are identified and their level of interconnectedness analysed. This paper provides insight on how the collected data pursuant to the EMIR regulation can be used to shed light on the complex network of interrelations underlying the financial markets. It provides indications on structural features of the euro area centrally-cleared derivatives market and discusses policy relevant implications and future applications. JEL Classification: G01, G15, G23
衍生品市场的全球性,以及大型关键金融机构在全球多个市场进行交易,要求我们从“宏观”角度看待清算网络中出现的相互联系。基于对EMIR法规下衍生品交易数据的分析,我们重建了中央清算衍生品市场的关系网络,并分析了其拓扑结构,从而深入了解其结构特征。中央清算的衍生品网络以多路网络的形式建模,其中每一层由衍生品资产类别市场表示。反过来,每个节点代表该市场中的单个对手方。在不同的中心性措施的基础上,适用于崩溃的总量和多元网络,欧元区中央清算衍生品市场的关键参与者被确定,并分析了他们的相互联系水平。本文提供了根据EMIR法规收集的数据如何用于揭示金融市场背后复杂的相互关系网络的见解。它提供了欧元区中央清算衍生品市场结构特征的指示,并讨论了政策相关的影响和未来的应用。JEL分类:G01, G15, G23
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引用次数: 6
Quota or Disclosure? Evidence from Corporate Board Gender Diversity Policies 配额还是披露?来自公司董事会性别多样性政策的证据
Pub Date : 2019-11-01 DOI: 10.2139/ssrn.3493375
Shirley Lu
In this paper, I compare two policy interventions used in Europe to increase gender equality on corporate boards: quota versus disclosure. While quota has a stronger enforcement effect, disclosure allows firms to decide on the optimal board gender ratio taking into consideration their own information. This information includes the friction that causes low female representation on boards. I show that it is important to separate supply and demand side frictions. In industries that have a low supply of female directors, quota leads firms to hire more foreign female directors, new female directors with no prior board experience, and more female directors with PhDs. In industries not constrained by female director supply, disclosure and quota can be equally effective in shattering the glass ceiling. Additionally, I find that effects are stronger in countries where there is a stronger social norm on gender equality. Last, I do not find this increase in board gender diversity leads to better financial performance.
在本文中,我比较了欧洲用于促进公司董事会性别平等的两项政策干预:配额与披露。虽然配额具有更强的强制执行作用,但披露允许公司在考虑自身信息的情况下决定董事会的最佳性别比例。这些信息包括导致董事会中女性比例偏低的摩擦。我认为把供给侧和需求侧的摩擦分开是很重要的。在女性董事数量较少的行业,配额导致公司雇佣更多的外国女性董事、没有董事会经验的新女性董事,以及更多拥有博士学位的女性董事。在不受女性董事数量限制的行业,信息披露和配额在打破玻璃天花板方面同样有效。此外,我发现在性别平等社会规范更强的国家,这种影响更强。最后,我没有发现董事会性别多样性的增加会带来更好的财务业绩。
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引用次数: 3
Accuracy and Determinants of Self-Assessed Euro Area House Prices 欧元区房价自我评估的准确性和决定因素
Pub Date : 2019-11-01 DOI: 10.2139/ssrn.3486801
Julien Le Roux, M. Roma
Using microdata from the second wave of the Household Finance and Consumption Survey, we investigate the accuracy of property values estimated by homeowners - so called “self-assessed” house prices - and explore the drivers of possible deviations of these prices from official hedonic house price indices. We find evidence that euro area homeowners overestimate the value of their properties by around 9%. Across the largest euro area countries, the overestimation lies in a range between 3.2% in Germany and 22% in Italy. Household characteristics, including the level of indebtedness, appear to explain significant discrepancies between hedonic and self-assessed house price indices, while the limited available data related to property characteristics are generally not affecting this gap. For the euro area, we find that higher self-assessed house prices are associated with a mild increase in consumption expenditures. JEL Classification: E31, C21, O18
利用第二波家庭金融和消费调查的微观数据,我们调查了房主估计的房地产价值的准确性——所谓的“自我评估”房价——并探讨了这些价格与官方享乐房价指数可能偏离的驱动因素。我们发现有证据表明,欧元区的房主高估了他们房产的价值约9%。在欧元区最大的几个国家中,德国和意大利的高估幅度在3.2%和22%之间。家庭特征,包括负债水平,似乎解释了享乐和自我评估房价指数之间的显著差异,而与财产特征有关的有限可用数据通常不会影响这一差距。对于欧元区,我们发现较高的自我评估房价与消费支出的温和增长有关。JEL分类:E31, C21, O18
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引用次数: 1
The Differential Impact of Leverage on the Default Risk of Small and Large Firms 杠杆对大、小企业违约风险的差异影响
Pub Date : 2019-10-31 DOI: 10.2139/ssrn.3226246
L. Cathcart, Alfonso Dufour, Ludovico Rossi, Simone Varotto
Abstract We analyse a sample of 6 million firm-year observations of large corporations and small and medium sized enterprises (SMEs) spanning 6 European countries from 2005 to 2015, to determine the impact of leverage and different sources of funding on default risk. We find that financial leverage has a greater impact on the probability of default of SMEs than of large corporations. The difference in default probability between the top and bottom leverage quartiles is 1.24% for large firms and 2.87% for SMEs. This difference may be explained by the greater exposure of SMEs to short-term debt and their consequently higher refinancing risk. Indeed, we find that SMEs that recover from the state of insolvency may have similar leverage to defaulted SMEs; however their liability structure is significantly altered towards long-term debt and away from short-term debt. Our findings have important implications not only for bank regulators and policy-makers but also for credit risk modelling.
本文分析了欧洲6个国家2005年至2015年的600万家大型企业和中小企业(SMEs)的年度观察样本,以确定杠杆和不同资金来源对违约风险的影响。我们发现财务杠杆对中小企业违约概率的影响大于对大企业违约概率的影响。大公司和中小企业的最高和最低杠杆四分位数之间的违约概率差异为1.24%和2.87%。这种差异可能是由于中小企业对短期债务的敞口更大,因此再融资风险更高。事实上,我们发现,从资不抵债状态中恢复过来的中小企业可能与违约的中小企业拥有相似的杠杆;然而,它们的负债结构发生了重大变化,从短期债务转向长期债务。我们的研究结果不仅对银行监管机构和政策制定者有重要意义,而且对信用风险建模也有重要意义。
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引用次数: 49
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European Finance eJournal
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