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A Factor Model for Cryptocurrency Returns 加密货币收益的因子模型
Pub Date : 2021-10-10 DOI: 10.2139/ssrn.3935934
Daniele Bianchi, M. Babiak
We investigate the dynamics of daily realised returns and risk premiums for a large cross-section of cryptocurrency pairs through the lens of an Instrumented Principal Component Analysis (IPCA) (see Kelly et al. 2019). We show that a model with three latent factors and time-varying factor loadings significantly outperforms a benchmark model with observable risk factors: the total (predictive) R
我们通过仪器主成分分析(IPCA)的视角,研究了大量加密货币对的每日实现回报和风险溢价的动态(见Kelly et al. 2019)。我们表明,具有三个潜在因素和时变因素负载的模型显着优于具有可观察风险因素的基准模型:总(预测)R
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引用次数: 6
Stock Price Level Effect 股价水平效应
Pub Date : 2021-08-18 DOI: 10.2139/ssrn.3907386
Charlotte Borsboom, Sascha C. Füllbrunn
Companies actively manipulate stock price ranges through IPOs, stock splits, and repurchases. Indeed, empirical results suggest that the stock’s price range, whether at a high or low price level, affects market performance. Unfortunately, archival data does not allow us to test the effect of stock price levels on investor behavior due to uncontrolled confound effects. We thus conduct a controlled online experiment with 900 US retail investors to test whether a difference in stock price levels affects the investor’s risk perception, the price forecast, and the investment. Even though we find no differences in risk perception and forecasts, our results show significantly higher investments in high-priced stocks in comparison to low-priced stocks. This effect disappears when we allow fractional share purchases or restrict naive trading strategies.
公司通过首次公开募股、股票分割和回购积极操纵股价区间。事实上,实证结果表明,股票的价格区间,无论是在高或低的价格水平,影响市场表现。不幸的是,由于不受控制的混淆效应,档案数据不允许我们测试股票价格水平对投资者行为的影响。因此,我们对900名美国散户投资者进行了一项在线控制实验,以测试股价水平的差异是否会影响投资者的风险感知、价格预测和投资。尽管我们没有发现风险感知和预测的差异,但我们的结果表明,与低价股票相比,高价股票的投资明显更高。当我们允许部分股票购买或限制幼稚的交易策略时,这种效应就消失了。
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引用次数: 1
A Dynamic Measure of Intentional Herd Behavior Causing Excess Volatility in U.S. Stock Markets (미국 주식시장의 초과변동성과 의도적 무리행동의 동태적 측정) A Dynamic Measure of Intentional Herd Behavior Causing Excess Volatility in u.s. Stock Markets
Pub Date : 2021-06-30 DOI: 10.2139/ssrn.3877103
Myung-Joong Kim, Beum-Jo Park
English Abstract: This paper suggests a dynamic measure of intentional herding, causing the excess volatility or even systemic risk in financial markets, which is based on a new concept of cumulative returns in the same direction as well as the collective behavior of all investors towards the market consensus. Differing from existing measures, the measure allows us to directly detect time-varying and market-wide intentional herding using the model of Dynamic Conditional Correlation (DCC) (Engle, 2002) between the financial market and its components that is partially free of spurious herding due to the inclusion of the variables of the number of economic news announcements as a proxy of market information. Strong evidence in favor of the dynamic measure over the other measures is based on empirical application in the U.S. markets (DJIA and S&P100), supporting the tendency to exhibit time-varying intentional herding. More importantly, it is found that the impact of intentional herding on market volatility tends to be stronger during the periods of turbulent markets like the degradation of U.S. sovereign credit rating by S&P, and be more significant in S&P 100 than DJIA.

Korean Abstract: 본 연구에서는 금융시장에서 초과변동성과 구조적 위험 등을 야기하는 의도적(intentional) 무리행동을 측정할 수 있는 보다 향상된 방법론을 제시하고자 하였다. 특히 기존의 무리 행동 측정에서 주로 활용되던 횡단면 표준편차 방법 대신 동태적 조건부 상관관계 모형(DCC)(Engle, 2000)을 추정함으로써 시변 동태적 무리행동을 직접 관측하는 방법을 사용하였으며, 이 과정에서 시장의 추세에 따라 무리지어 거래하는 투자자의 행태를 보다 명확히 관측하기 위해 일반적인 수익률 대신 가칭 CRS(Cunmulative Returns in the Same direction)를 활용하고, 공적 정보의 유입으로 발생하는 허위 무리행동에 비해 상대적으로 의도적 형태로 발생하는 무리행동을 구분하기 위해 정보의 강도(뉴스)를 통제하였다. 유럽의 재정위기 발생과 미국 신용등급 강등 시기를 포함하는 2010년 1월부터 2013년 5월까지 미국 금융시장(다우존스 산업지수와 S&P100 지수)을 대상으로 분석을 수행한 결과 시장 스트레스 기간 동안 미국 금융시장에도 유의미한 의도적 무리행동이 관측되었으며, 특히 이 시기 의도적 무리행동의 발생이 시장 수익률의 변동성에 미치는 영향과 강도는 다우존스 산업지수에 비해 S&P100 지수에서 더 강하게 나타나는 것으로 관측되었다.
摘要:本文基于同一方向累积收益的新概念,以及所有投资者对市场共识的集体行为,提出了一种动态度量导致金融市场过度波动甚至系统性风险的有意羊群行为。与现有措施不同,该措施允许我们使用动态条件相关(DCC)模型(Engle, 2002)直接检测金融市场与其组成部分之间的时变和市场范围内的故意羊群,由于包含经济新闻公告数量的变量作为市场信息的代理,该模型部分避免了虚假羊群。基于美国市场(道琼斯工业平均指数和标普100指数)的实证应用,动态指标优于其他指标的有力证据支持表现出时变有意羊群的趋势。更重要的是,研究发现,在标普下调美国主权信用评级等市场动荡时期,有意羊群效应对市场波动的影响往往更强,在标普100指数中比在道琼斯工业平均指数中更为显著。韩国文摘:본연구에서는금융시장에서초과변동성과구조적위험등을야기하는의도적(故意)무리행동을측정할수있는보다향상된방법론을제시하고자하였다。특히기존의무리행동측정에서주로활용되던횡단면표준편차방법대신동태적조건부상관관계모형(DCC)(恩格尔,2000)을추정함으로써시변동태적무리행동을직접관측하는방법을사용하였으며,이과정에서시장의추세에따라무리지어거래하는투자자의행태를보다명확히관측하기위해일반적인수익률대신가칭CRS (Cunmulative返回方向相同)를활용하고,공적정보의유입으로발생하는허위무리행동에비해상대적으로의도적형태로발생하는무리행동을구분하기위해정보의강도(뉴스)를통제하였다。유럽의재정위기발생과미국신용등급강등시기를포함하는2010년월부터2013년월까지미국금융시장(다우존스산업지수와S& P100지수)을대상으로분석을수행한결과시장스트레스기간동안미국금융시장에도유의미한의도적무리행동이관측되었으며,특히이시기의도적무리행동의발생이시장수익률의변동성에미치는영향과강도는다우존스산업지수에비해S& P100지수에서더강하게나타나는것으로관측되었다。
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引用次数: 0
Financial Intermediary Leverage, Volatility, and the Cross-Section of Asset Returns 金融中介机构杠杆、波动性和资产收益的横截面
Pub Date : 2021-06-20 DOI: 10.2139/ssrn.3856777
S. Chan
Society needs financial intermediaries to create orderly efficient markets, to have informative prices, and to best allocate resources. However, when trust is eroded with high volatility and unpredictable events, financial crises are amplified and prices are distorted as financial intermediaries struggle to hold rapidly depreciating assets that are essential for economic recovery. Using a multi-factor model, I find that intermediary leverage, volatility, and more importantly their interaction, explain cross-sectional variations in expected returns. I propose an advancement based on the joint interaction between intermediary leverage and volatility to enable financial intermediaries to better manage their leverage in a rapidly evolving risk environment.
社会需要金融中介机构来创建有序高效的市场,提供信息丰富的价格,并以最佳方式配置资源。然而,当信任受到高波动性和不可预测事件的侵蚀时,金融危机被放大,价格被扭曲,因为金融中介机构难以持有对经济复苏至关重要的迅速贬值的资产。使用多因素模型,我发现中介杠杆,波动性,更重要的是它们的相互作用,解释了预期收益的横截面变化。我提出了一个基于中介杠杆和波动之间的共同作用的进展,使金融中介机构能够在快速变化的风险环境中更好地管理其杠杆。
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引用次数: 0
Parimutuel Betting Markets: Racetracks and Lotteries Revisited 博彩市场:重新审视赛马场和彩票
Pub Date : 2021-06-12 DOI: 10.2139/ssrn.3865785
W. Ziemba
This paper discusses the state of the art in research in racetrack and lottery investment markets. Market efficiency and the pricing of various wagers is studied along with new developments since the Thaler and Ziemba (1988) review. The weak form inefficient market approach using stochastic programming optimization models changed racetrack betting from handicapping to a financial market allowing professional syndicates to operate as successful hedge funds. The topics discussed include the role of arbitrage and risk arbitrage, syndicates, betting exchange rebates, behavioral biases, portfolio insurance and fundamental and mispricing information in racetrack and lottery markets as well as other sports betting markets. I co-authored the Beat the Racetrack books which provided a weak form winning system for place and show bets and analyzed racing as a financial market and Efficiency of Racetrack Betting Markets, the "bible" for Hong Kong racing betting syndicates. These made me known to practitioners and consultants and I have consulted for several racing syndicates
本文讨论了赛马场和彩票投资市场的研究现状。市场效率和各种赌注的定价是随着新的发展一起研究自塞勒和津巴(1988)审查。使用随机规划优化模型的弱形式低效市场方法将赛马场博彩从妨碍变成了一个金融市场,允许专业辛迪加作为成功的对冲基金运作。讨论的主题包括套利和风险套利的作用,辛迪加,博彩交易所回扣,行为偏差,投资组合保险以及赛马场和彩票市场以及其他体育博彩市场的基本和错误定价信息。我与人合著了《击败赛马场》一书,提供了一套弱形式的赌马和赌马的中奖制度,并分析了作为金融市场的赛马和《赛马场投注市场效率》,这是香港赛马投注集团的“圣经”。这些使我知道从业者和顾问,我已经咨询了几个赛马集团
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引用次数: 8
Firm Location and the Value-Growth Premium 公司选址与价值-成长溢价
Pub Date : 2021-06-07 DOI: 10.2139/ssrn.3861819
B. Ambrose, Yifan Chen, Timothy T. Simin
We investigate the value-growth premium puzzle by merging insights from urban economics and finance that relate firm location to its stock performance. The value-growth premium in locations with high historical house price appreciation is 3.6% larger per year than the premium in areas that experienced little house price appreciation. The link between housing value appreciation and the cross-section of returns supports investment-based models explaining the value premium; moreover we find the house price channel reduces growth firm returns rather than increasing returns of value firms. House price appreciation remains significant after controlling for common explanations of the premium.
我们通过合并城市经济学和金融学的见解来研究价值增长溢价之谜,这些见解将公司所在地与其股票表现联系起来。历史房价涨幅高的地区的价值增长溢价每年比房价涨幅小的地区的价值增长溢价高出3.6%。房屋价值增值与收益横截面之间的联系支持基于投资的模型来解释价值溢价;此外,我们发现房价通道降低了成长型公司的回报,而不是增加了价值型公司的回报。在控制了常见的溢价解释后,房价的升值幅度仍然很大。
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引用次数: 0
Not all General Obligations Are Created Equal: A Commentary 并非所有的一般义务都是平等的:评论
Pub Date : 2021-06-03 DOI: 10.2139/ssrn.3859633
Darío Cestau
We document a comprehensive new classification of the legal structures backing municipal bonds and the effects that different legal features have on bond yields. It is a well-documented fact that investors rely on credit ratings to determine the credit risk of municipal bonds. However, rating agencies do not fully factor in the legal structures backing the bonds because measuring and testing the effects of said legal structures is inherently onerous. Since the price of risk is unusually high in this market, these flaws have important effects on yields.
我们对支持市政债券的法律结构进行了全面的新分类,并对不同法律特征对债券收益率的影响进行了记录。有充分证据表明,投资者依靠信用评级来确定市政债券的信用风险。然而,评级机构没有充分考虑支持债券的法律结构,因为衡量和测试所述法律结构的影响本身就是繁重的。由于这个市场的风险价格异常高,这些缺陷对收益率有重要影响。
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引用次数: 0
Commodities, Crude Oil, and Diversified Portfolios 大宗商品、原油和多元化投资组合
Pub Date : 2021-06-03 DOI: 10.2139/ssrn.3860231
H. Till
With concerns on inflation flaring up, there has been renewed interest in potentially including commodities in diversified portfolios. This article builds off prior research in examining which commodities to include and in what size. The article briefly reviews the relevant literature and proposes a novel and uncomplicated portfolio solution, which takes into consideration both historical results and plausible new paradigms. In addition, an investor would be able to implement this portfolio solution through deeply liquid futures markets.
随着对通胀的担忧加剧,投资者重新燃起了可能将大宗商品纳入多元化投资组合的兴趣。本文建立在先前研究的基础上,研究了哪些商品应该包括在内以及商品的大小。本文简要回顾了相关文献,并提出了一种新颖而简单的投资组合解决方案,该方案既考虑了历史结果,又考虑了合理的新范式。此外,投资者将能够通过流动性很强的期货市场实施这种投资组合解决方案。
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引用次数: 1
Embracing Machine Learning To Tackle Portfolio Optimisers Limitations 拥抱机器学习解决投资组合优化器的局限性
Pub Date : 2021-05-13 DOI: 10.2139/ssrn.3857049
Carlos Salas Najera
The content of this article will be concerned with the mathematical limitations of the early MPT theories and will leave aside other topics related to portfolio optimization such as the factoring of behavioural biases, portfolio optimization criteria (by style, country, industry, etc), or the purpose of the optimization (asset allocation, ALM, long-short portfolios, etc). Furthermore, this article does not intend to cover all the body of research but only to emphasize those models that either propose a brand new approach, or have been broadly adopted by the industry over the last decade.

MVO (Minimum Variance Optimization) was an innovative approach to investments more than fifty years ago, albeit it was not without pitfalls. New machine learning techniques such as PCA, Clustering or Graph Theory have been able to tackle the main challenges proposed by the original MVO portfolio optimization problem.
本文的内容将关注早期MPT理论的数学局限性,并将搁置与投资组合优化相关的其他主题,例如行为偏差的因素,投资组合优化标准(按风格,国家,行业等),或优化的目的(资产配置,ALM,多空投资组合等)。此外,本文并不打算涵盖所有的研究,而只是强调那些提出全新方法的模型,或者在过去十年中被行业广泛采用的模型。MVO(最小方差优化)在50多年前是一种创新的投资方法,尽管它并非没有缺陷。新的机器学习技术,如PCA、聚类或图论,已经能够解决最初的MVO投资组合优化问题所提出的主要挑战。
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引用次数: 0
Climate Sensitivity and Mutual Fund Performance 气候敏感性和共同基金业绩
Pub Date : 2021-05-05 DOI: 10.2139/ssrn.3839888
Thang Ho
In the presence of rising concern about climate change that potentially affects risk and return of investors’ portfolio companies, active investors might have dispersed climate risk exposures. We compute mutual fund covariance with market-wide climate change news index and find that high (positive) climate beta funds outperform low (negative) climate beta funds by 0.24% per month on a risk-adjusted basis. High climate beta funds tilt their holdings toward stocks with high potential to hedge against climate change. In the cross section, such stocks yield higher excess returns, which are driven by greater pricing pressure and superior financial performance over our sample period.
由于气候变化可能影响投资者投资组合公司的风险和回报,人们对气候变化的担忧日益加剧,积极的投资者可能分散了气候风险敞口。我们用市场范围内的气候变化新闻指数计算共同基金的协方差,发现在风险调整的基础上,高(正)气候贝塔基金的表现每月比低(负)气候贝塔基金高出0.24%。高气候贝塔系数基金倾向于持有具有高潜力对冲气候变化风险的股票。在横截面上,这些股票产生更高的超额回报,这是由我们样本期间更大的定价压力和卓越的财务业绩驱动的。
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引用次数: 1
期刊
FinPlanRN: Other Investments (Topic)
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