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Exchange Rates and Unobservable Fundamentals: A New Approach to Out-of-Sample Forecasting 汇率和不可观察的基本面:样本外预测的新方法
Pub Date : 2016-10-01 DOI: 10.2139/ssrn.2760772
Dennis Wellmann, S. Trück
Traditional exchange rate models are based on differences in macroeconomic fundamentals. However, despite being well grounded in economic theory they have a rather poor out-of sample forecasting record. This empirical failure may be a result of the overly restrictive choice of macroeconomic fundamentals. We suggest using the empirical sovereign yield spread level and slope as proxies of the market's expectations for current and future fundamentals and find promising results when we investigate the forecasting accuracy of these variables. Using the yield spread level and slope as a set of unobservable fundamentals, our model outperforms traditional exchange rate models for most considered currencies and horizons. It is also superior to a random walk in terms of direction of change forecasts and profitability.
传统的汇率模型是基于宏观经济基本面的差异。然而,尽管他们有良好的经济理论基础,但他们的样本外预测记录相当糟糕。这种经验上的失败可能是对宏观经济基本面选择过于严格的结果。我们建议使用经验主权收益率息差水平和斜率作为市场对当前和未来基本面预期的代理,并在我们调查这些变量的预测准确性时发现有希望的结果。使用收益率差水平和斜率作为一组不可观察的基本面,我们的模型在大多数考虑的货币和范围内优于传统的汇率模型。在变化预测的方向和盈利能力方面,它也优于随机漫步。
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引用次数: 1
Pricing Risks across Currency Denominations 跨货币计价的定价风险
Pub Date : 2016-07-26 DOI: 10.2139/ssrn.2589545
T. Maurer, Thuy-Duong Tô, N. Tran
We use principal component analysis on 55 bilateral exchange rates of 11 developed currencies to identify two important global risk sources in foreign exchange (FX) markets. The risk sources are related to Carry and Dollar but are not spanned by these factors. We estimate the market prices associated with the two risk sources in the cross-section of FX market returns and construct FX market-implied country-specific stochastic discount factors (SDFs). The SDF volatilities are related to interest rates and expected carry trade returns in the cross-section. The SDFs price international stock returns and are related to important financial stress indicators and macroeconomic fundamentals. The first principal risk is associated with the Treasury-EuroDollar (TED) spread, quantities measuring volatility, tail and contagion risks, and future economic growth. It earns a relatively small implied Sharpe ratio. The second principal risk is associated with the default and term spreads and quantities capturing volatility and illiquidity risks. It further correlates with future changes in the long-term interest rate and earns a large implied Sharpe ratio. This paper was accepted by Lauren Cohen, finance.
本文采用主成分分析法对11种发达国家货币的55个双边汇率进行分析,以确定外汇市场中两个重要的全球风险源。风险源与Carry和Dollar相关,但不受这些因素的影响。我们在外汇市场收益的横截面中估计与这两个风险源相关的市场价格,并构建外汇市场隐含的国别随机贴现因子(sdf)。在横截面上,SDF波动率与利率和预期套利交易收益有关。sdf为国际股票回报定价,并与重要的金融压力指标和宏观经济基本面有关。第一个主要风险与美国国债-欧洲美元(TED)价差有关,这是衡量波动性、尾部和传染风险以及未来经济增长的数量。它的隐含夏普比率相对较小。第二个主要风险与违约和期限价差以及捕获波动性和非流动性风险的数量有关。它进一步与长期利率的未来变化相关,并获得很大的隐含夏普比率。这篇论文被财经的劳伦·科恩接受了。
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引用次数: 19
Venture Capitalists' Value-Enhancing Activities Under Weak Protection of Law 法律保护薄弱下风险资本家的价值提升行为
Pub Date : 2016-01-19 DOI: 10.2139/ssrn.2717977
Hui Li, Xiaohui Wu, Ying Ye, Qi Zeng
Using two sets of hand-collected survey data, we studied the value-adding activities of venture capitalists (VCs) operating in the weak legal environment of China. VCs exert value-enhancing efforts in addition to monitoring through trust considerations. We identified the effects of three types of trusts, strategic reputation-based (C-trust), knowledge-based (K-trust), and identification-based (I-trust), on a company's performance while investing venture capital in China. We find that the C-trust acts only through increased use of complementary resources to improve a firm's performance. K-trust and I-trust can also stimulate in two other ways by reducing transaction costs and improving team-spirit.
本文利用两组手工收集的调查数据,研究了在中国法律环境薄弱的情况下风险资本家的增值活动。风投除了通过信任考虑进行监控外,还会努力提升价值。我们确定了三种类型的信任,即基于战略声誉的(C-trust),基于知识的(K-trust)和基于认同的(I-trust),对公司在中国投资风险投资时的绩效的影响。我们发现c型信任只有通过增加互补资源的使用才能提高企业绩效。K-trust和I-trust还可以通过降低交易成本和提高团队精神两种方式刺激。
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引用次数: 4
Delegation, Trust and Defaulting in Retirement Savings: Perspectives from Plan Executives and Members 退休储蓄中的委托、信任和违约:来自计划执行者和成员的观点
Pub Date : 2015-07-31 DOI: 10.2139/SSRN.2638998
Adam Butt, M. Donald, F. Foster, S. Thorp, G. Warren
We combine survey data from retirement plan members with information from interviews with plan executives to get both perspectives on who accepts the default plan and default investment option and why. We use a natural experiment in default construction where a new regulatory framework required providers to have stipulated default settings in place by early 2014. We find that not all retirement savings plan members who default at the plan choice stage default at the investment choice stage, and vice versa. Only around one third of the sample say they defaulted twice. While some plan executives describe defaulting members as uninterested in their retirement savings, our results highlight that subjective lack of skill combined with trust in the managing agents are the prime motivations for defaulting, rather than low interest. Plan executives set a high risk exposure in default investment strategies to ensure high wealth growth, but defaulting respondents show a lower appetite for risk than active choosers. The heterogeneity and low skill of members make a case for smart defaults.
我们将退休计划成员的调查数据与计划高管的访谈信息结合起来,从两个角度了解哪些人接受默认计划和默认投资选择,以及为什么接受默认投资选择。我们在违约构建中进行了自然实验,新的监管框架要求提供商在2014年初之前规定违约设置。我们发现,并非所有在计划选择阶段违约的退休储蓄计划成员都在投资选择阶段违约,反之亦然。只有大约三分之一的受访者表示他们违约了两次。虽然一些计划高管将违约成员描述为对他们的退休储蓄不感兴趣,但我们的研究结果强调,主观缺乏技能以及对管理代理人的信任是违约的主要动机,而不是低利率。计划高管在默认的投资策略中设置了高风险敞口,以确保财富的高增长,但默认的受访者对风险的偏好低于积极选择者。成员的异质性和低技能为智能默认提供了理由。
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引用次数: 5
Cross Trading by Investment Advisers: Implications for Mutual Fund Performance 投资顾问的交叉交易:对共同基金业绩的影响
Pub Date : 2015-06-15 DOI: 10.2139/ssrn.2022808
Lorenzo Casavecchia, Ashish Tiwari
Using a unique dataset we provide new evidence on the significant penalty on client fund performance due to conflicts of interest related to the cross trading (TCT) activities of mutual fund advisers: funds managed by advisers in the top TCT quintile significantly underperform funds managed by advisers in the bottom TCT quintile by 1% per year. Adviser incentives to engage in cross trading are directly related to their opportunities for generating revenues from affiliated trading operations. Additional tests suggest that the significantly higher trading commissions paid by client funds of high-TCT advisers are a major source of their under-performance.
使用一个独特的数据集,我们提供了新的证据,证明由于与共同基金顾问的交叉交易(TCT)活动相关的利益冲突,对客户基金业绩造成了重大损失:由顶级TCT五分之一的顾问管理的基金,每年的表现明显落后于底层TCT五分之一的顾问管理的基金1%。顾问参与交叉交易的动机与他们从关联交易业务中获得收入的机会直接相关。另外的测试表明,高tct顾问的客户基金支付的交易佣金高得多,这是他们业绩不佳的一个主要原因。
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引用次数: 21
Significance Testing in Empirical Finance: A Critical Review and Assessment 实证金融中的显著性检验:批判性回顾与评估
Pub Date : 2015-06-08 DOI: 10.2139/ssrn.2410049
Jae H. Kim, P. Ji
This paper critically reviews the practice of significance testing in modern finance research. Employing a survey of recently published articles in four top-tier finance journals, we find that the conventional significance levels are exclusively used with little consideration of the key factors such as the sample size, power of the test, and expected losses. We also find that statistically significant results reported in many surveyed papers become questionable, if Bayesian method or revised standards for evidence were instead used. We observe strong evidence of publication bias in favour of statistical significance. We propose that substantial changes be made to the current practice of significance testing in finance research, in order to improve research credibility and integrity.
本文批判性地回顾了现代金融研究中显著性检验的实践。通过对四家顶级金融期刊最近发表的文章的调查,我们发现传统的显著性水平被专门使用,很少考虑样本量、检验功率和预期损失等关键因素。我们还发现,如果使用贝叶斯方法或修订的证据标准,许多被调查论文中报告的统计显著性结果变得可疑。我们观察到支持统计显著性的出版偏倚的有力证据。我们建议对目前金融研究中显著性检验的实践进行实质性的改变,以提高研究的可信度和完整性。
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引用次数: 70
Are Mutual Fund Investors Paying for Noise? 共同基金投资者是否在为噪音买单?
Pub Date : 2015-03-26 DOI: 10.2139/ssrn.2578547
Lorenzo Casavecchia, H. Hulley
In this study we identify an implicit noise premium in mutual fund advisory fees. We argue that idiosyncratic volatility makes it difficult for investors to estimate fund performance, resulting in investor disagreement about advisory skills. Since mutual fund shares cannot be sold short, the outcome is higher advisory fees than would be the case if advisory skills were transparent to investors. We find empirical support for this argument, in the form of a positive dependence of advisory fees on idiosyncratic volatilities, which is robust to the inclusion of other fund characteristics known to affect advisory compensation. We show that the dependence of advisory fees on idiosyncratic volatilities improves previous estimations of the fee-performance sensitivity for mutual funds. Our findings also reveal that investor sophistication reduces the dependence of advisory compensation on idiosyncratic volatility, since more sophisticated investors are less inclined to reward advisors for generating noisy returns.
在本研究中,我们确定了共同基金咨询费中的隐性噪音溢价。我们认为,特殊波动使投资者难以估计基金业绩,从而导致投资者对咨询技巧的分歧。由于共同基金股票不能卖空,其结果是,如果咨询技巧对投资者透明,咨询费将会更高。我们找到了这一论点的实证支持,其形式是咨询费对特殊波动率的正依赖,这对于包含已知影响咨询薪酬的其他基金特征是稳健的。我们表明,咨询费用对特殊波动率的依赖改善了以前对共同基金费用绩效敏感性的估计。我们的研究结果还表明,投资者的成熟程度降低了顾问薪酬对特殊波动率的依赖,因为更成熟的投资者不太倾向于奖励产生嘈杂回报的顾问。
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引用次数: 3
Do Sovereign Re-Ratings Destabilize Equity Markets During Financial Crises?: New Evidence From Higher Return Moments 主权评级在金融危机中会破坏股市的稳定吗?:来自高回报时刻的新证据
Pub Date : 2015-03-05 DOI: 10.2139/ssrn.2186275
R. Brooks, R. Faff, Sirimon Treepongkaruna, Eliza Wu
We investigate the effects of S&P’s sovereign re-ratings on the higher moments of equity market returns over recent financial crises. Using a set of intraday stock market index prices and sovereign credit ratings for a sample of 36 countries which experienced sovereign rating changes over the period from 1996 - 2013, we find that the higher moments of stock market returns are significantly more responsive to sovereign re-ratings during financial crises but the effects on stock markets are not the same across different financial crises. The effects during crises are however magnified for large downgrades and those that are associated with a loss of investment grade status. We find that there are asymmetric effects during financial crises in that downgrades are consistently more significant than upgrades in increasing realized volatility and realized kurtosis. Both upgrades and downgrades affect realized skewness in times of crises in the expected direction.
我们研究了在最近的金融危机中,标准普尔主权评级的重新评级对股票市场回报率较高时刻的影响。通过对1996年至2013年间经历主权评级变化的36个国家的股票市场指数价格和主权信用评级进行分析,我们发现,在金融危机期间,股票市场回报较高的时刻对主权评级的反应明显更强,但对股票市场的影响在不同的金融危机中并不相同。然而,在危机期间,大幅下调评级以及与失去投资级地位相关的评级,其影响会被放大。我们发现,在金融危机期间存在不对称效应,在增加已实现波动率和已实现峰度方面,降级始终比升级更显著。在危机发生时,上调和下调都会影响预期方向的已实现偏度。
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引用次数: 0
Do Gold Prices Cause Production Costs? Evidence from Country and Company Data 黄金价格会影响生产成本吗?来自国家和公司数据的证据
Pub Date : 2015-02-03 DOI: 10.2139/ssrn.2507733
Fergal O'Connor, D. Baur, B. Lucey
This paper analyses the causal relationship between gold production costs and gold prices using a hand-collected set of country and company data on gold mining. We find strong econometric evidence for causality running from gold prices to gold production costs. The results are supported theoretically by the small amount of annual gold production relative to the total stock and the real options embedded in gold mines. The low flow-stock ratio of gold implies low market power of gold mining firms and thus an inability to significantly influence gold prices. The real options enable gold mining firms to adjust production conditional on the gold price. Production thus follows gold prices.
本文利用一组手工收集的国家和公司的黄金开采数据,分析了黄金生产成本和黄金价格之间的因果关系。我们发现了从黄金价格到黄金生产成本的因果关系的强有力的计量经济学证据。黄金年产量相对于总库存量的比例较小,以及金矿的实物期权为上述结果提供了理论支持。黄金的低流量存量比意味着黄金矿业公司的市场支配力较低,因此无法显著影响黄金价格。实物期权使黄金开采公司能够根据黄金价格调整产量。因此,产量随黄金价格而变化。
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引用次数: 2
Will Precious Metals Shine? A Market Efficiency Perspective 贵金属会发光吗?市场效率视角
Pub Date : 2014-06-19 DOI: 10.2139/ssrn.2456799
Amélie Charles, Olivier Darné, Jae H. Kim
Precious metals (gold, silver, and platinum) have become an important part of investment portfolios for individuals as well as for institutions. A key question is whether investors should actively trade these metals to time the market or whether they should take a buy-and-hold strategy. This paper examines the weak-form efficiency of precious metals markets with this question in mind, using the automatic portmanteau and variance ratio tests. It is found that return predictability of these markets has been changing over time, depending on prevailing economic and political conditions. The return predictability of gold and silver markets have been showing a downward trend, implying that the degree of the weak-form efficiency of these markets have been gradually improving. In particular, the gold market has been highly efficient recently, showing the highest degree of market efficiency among the three precious metals markets. The overall evidence suggest an buy-and-hold strategy, but profit opportunities may arise from time to time depending on prevailing economic or political conditions.
贵金属(黄金、白银和铂金)已经成为个人和机构投资组合的重要组成部分。一个关键问题是,投资者是应该积极交易这些金属以把握市场时机,还是应该采取买入并持有的策略。本文考虑到这一问题,利用自动组合检验和方差比检验检验了贵金属市场的弱形式效率。研究发现,随着时间的推移,这些市场的回报可预测性一直在变化,这取决于当时的经济和政治条件。黄金和白银市场的收益可预测性一直呈下降趋势,这意味着这些市场的弱形式效率程度正在逐步提高。特别是,最近黄金市场表现出高效率,在3大贵金属市场中市场效率最高。总体证据表明买入并持有策略,但盈利机会可能不时出现,这取决于当前的经济或政治条件。
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引用次数: 60
期刊
FIRN (Financial Research Network) Research Paper Series
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