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Multi-Period Credit Default Prediction with Time-Varying Covariates 基于时变协变量的多周期信用违约预测
Pub Date : 2011-11-22 DOI: 10.2139/ssrn.1788826
W. Orth
In credit default prediction models, the need to deal with time-varying covariates often arises. For instance, in the context of corporate default prediction a typical approach is to estimate a hazard model by regressing the hazard rate on time-varying covariates like balance sheet or stock market variables. If the prediction horizon covers multiple periods, this leads to the problem that the future evolution of these covariates is unknown. Consequently, some authors have proposed a framework that augments the prediction problem by covariate forecasting models. In this paper, we present simple alternatives for multi-period prediction that avoid the burden to specify and estimate a model for the covariate processes. In an application to North American public firms, we show that the proposed models deliver high out-of-sample predictive accuracy.
在信用违约预测模型中,经常需要处理时变协变量。例如,在企业违约预测的背景下,一种典型的方法是通过对资产负债表或股票市场变量等时变协变量的风险率进行回归来估计风险模型。如果预测范围涵盖多个时期,这将导致这些协变量的未来演变未知的问题。因此,一些作者提出了一个框架,通过协变量预测模型来增加预测问题。在本文中,我们提出了多周期预测的简单替代方案,避免了为协变量过程指定和估计模型的负担。在对北美上市公司的应用中,我们表明所提出的模型提供了很高的样本外预测精度。
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引用次数: 11
Supplementary Material for 'Asset Pricing Restrictions on Predictability: Frictions Matter' “对可预测性的资产定价限制:摩擦很重要”的补充材料
Pub Date : 2011-11-11 DOI: 10.2139/ssrn.1764328
Frans de Roon, M. Szymanowska
This note contains supplementary material for "Asset Pricing Restrictions on Predictability: Frictions Matter."
本说明包含“可预测性的资产定价限制:摩擦问题”的补充材料。
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引用次数: 0
Predicting Swings in Exchange Rates with Macro Fundamentals 用宏观基本面预测汇率波动
Pub Date : 2011-10-28 DOI: 10.2139/ssrn.1878369
Shiu‐Sheng Chen
This paper investigates fundamentals-based exchange rate predictability from a different perspective. We focus on predicting currency swings (major trends in depreciation or appreciation) rather than on quantitative changes of exchange rates. Having used a nonparametric approach to identify swings in exchange rates, we examine the links between fundamentals and swings in exchange rates using both in-sample and out-of-sample forecasting tests. We use data from 12 developed countries, and our empirical evidence suggests that the uncovered interest parity fundamentals and Taylor rule model with interest rate smoothing are strong predictors of exchange rate swings.
本文从另一个角度考察了基于基本面的汇率可预测性。我们专注于预测货币波动(贬值或升值的主要趋势),而不是汇率的数量变化。在使用非参数方法来识别汇率波动之后,我们使用样本内和样本外预测测试来检查基本面与汇率波动之间的联系。我们使用来自12个发达国家的数据,我们的经验证据表明,未发现的利率平价基本原理和带有利率平滑的泰勒规则模型是汇率波动的有力预测因子。
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引用次数: 1
Estructura Optima de Capital Para Flujos de Caja Finitos (Optimal Capital Structure for Finite Cash Flows) 有限现金流下的最优资本结构
Pub Date : 2011-10-21 DOI: 10.2139/SSRN.1826264
Felipe Mejia-Pelaez, Ignacio Vélez-Pareja, J. Kolari
This paper has an English version and can be downloaded from: http://ssrn.com/abstract=1799605En este trabajo se muestra como encontrar la estructura optima de capital y el valor con un endeudamiento constante y variable periodo a periodo, cuando la tasa de descuento para el ahorro de impuestos es Ke, el costo de capital apalancado. Se presentan procedimientos numericos y expresiones recursivas compactas no circulares para los casos de periodos finitos y perpetuidades, lo que facilita el calculo y el analisis, incluyendo simulaciones de Monte Carlo. Asimismo, se ilustra el procedimiento en hoja de calculo con Solver como una verificacion.Ver las diapositivas que acompanan y complementan este documento en: El Juego De La Gallina Ciega: Buscando La Estructura Optima De Capital This paper shows how to proceed to find the optimal capital structure and value with period-to-period constant and variable leverage, when the discount rate for Escudo fiscal is Ke, the cost of levered equity. Numerical procedures and recursive closed-form non-circular expressions for the finite-period and perpetuity cases are presented, which facilitate any kind of implementation including Monte Carlo simulations. In addition, we illustrate the optimizing procedure with Solver for checking purposes.See the PowerPoint slides that accompany and complement this paper at: El Juego De La Gallina Ciega: Buscando La Estructura Optima De Capital
This paper你an English version and can be downloaded from: http://ssrn.com/abstract=1799605En工作是如何找到最佳的资本结构和变量值与一个常数和借贷时期时期,当贴现率为节约税收是Ke, apalancado资本成本。给出了有限周期和永续情况下的数值程序和紧递归非圆表达式,便于计算和分析,包括蒙特卡罗模拟。此外,还在计算表中说明了求解器作为验证的过程。看到acompanan所看到的幻灯片,并补充了这份文件:瞎子:游戏,寻找最佳资本结构,This paper节目how to proceed to find the connor Capital structure and value变量与period-to-period常数和财政收益,when the折扣rate for盾is Ke, the cost of levered平等。给出了有限周期和永续情况的数值过程和递归封闭非循环表达式,便于包括蒙特卡罗模拟在内的各种实现。= =地理= =根据美国人口普查,这个县的面积为。请参阅与本文配套和补充的幻灯片:盲鸡游戏:寻找最佳资本结构
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引用次数: 0
Corporate Lobbying, Political Connections, and the 2008 Troubled Asset Relief Program 企业游说、政治关系和2008年问题资产救助计划
Pub Date : 2011-09-30 DOI: 10.2139/ssrn.1878653
Benjamin M. Blau, Tyler Brough, D. Thomas
Political involvement has long been shown to be a profitable investment for firms that seek favorable regulatory conditions or support in times of economic distress. But how important are different types of political involvement for the timing and magnitude of political support? To answer this question, we take a comprehensive look at the lobbying expenditures and political connections of banks that were recipients of government support under the 2008 Troubled Asset Relief Program (TARP). We find that firms that lobbied or had other types of political connections were not only more likely to receive TARP funds, they also received a greater amount of support earlier than firms that were not politically involved through lobbying or direct political connections. For every dollar spent on lobbying during the five years prior to the TARP bailout, firms received between $485.77 and $585.65 in TARP support.
长期以来,对于那些在经济困难时期寻求有利监管条件或支持的公司来说,政治参与一直是一项有利可图的投资。但是,不同类型的政治参与对政治支持的时机和规模有多重要?为了回答这个问题,我们全面考察了在2008年问题资产救助计划(TARP)下接受政府支持的银行的游说支出和政治关系。我们发现,游说或有其他类型的政治关系的公司不仅更有可能获得TARP资金,而且比那些没有通过游说或直接政治关系参与政治的公司更早获得更多的支持。在问题资产救助计划实施前的五年里,企业每花一美元用于游说,就能获得485.77美元至585.65美元的问题资产救助计划支持。
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引用次数: 7
Murdering Mr. Market: An Equity Valuation and Capital Allocation Model for Long-Term Value-Investors 谋杀市场先生:长期价值投资者的股权估值和资本配置模型
Pub Date : 2011-09-29 DOI: 10.2139/ssrn.1935365
M. Rajaratnam, B. Rajaratnam, K. Rajaratnam
We present an equity valuation model that is in the spirit of the long-term value-investors Benjamin Graham and Warren Buffett. Taking a longer term view of business prospects and business risks, we explicitly consider Schumpeter’s forces of creative destruction as the central tenet of our model and capture its effect in a probabilistic manner. Assuming that our investor has log utility, we show that our valuation model answers the question of how much capital to allocate. Unlike CAPM, our model does not enforce the Efficient Market Hypothesis and qualitatively explains some well-known empirical studies on stock returns in existing literature.
我们提出的股票估值模型是在长期价值投资者本杰明·格雷厄姆和沃伦·巴菲特的精神。从商业前景和商业风险的长远角度来看,我们明确地将熊彼特的创造性破坏力量作为我们模型的核心原则,并以概率的方式捕捉其影响。假设我们的投资者有对数效用,我们证明我们的估值模型回答了分配多少资本的问题。与CAPM不同,我们的模型不执行有效市场假说,并定性地解释了现有文献中一些著名的股票收益实证研究。
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引用次数: 1
Disasters and Development: Natural Disasters, Credit Constraints and Economic Growth 灾害与发展:自然灾害、信贷约束与经济增长
Pub Date : 2011-09-29 DOI: 10.2139/ssrn.1843494
T. McDermott, F. Barry, R. Tol
Using a simple two-period model of the economy, we demonstrate the potential effects of natural disasters on economic growth over the medium to long term. In particular, we focus on the effect of such shocks on investment. We examine two polar cases: an economy in which agents have unconstrained access to capital markets, versus a credit-constrained version, where the economy is assumed to operate in financial autarky. Considering these extreme cases allows us to highlight the interaction of disasters and economic underdevelopment, manifested through poorly developed financial markets. The predictions of our theoretical model are tested using a panel of data on natural disaster events at the country-year level, for the period 1979–2007. We find that for countries with low levels of financial sector development, natural disasters have persistent negative effects on economic growth over the medium term. These results are robust to various checks.
通过一个简单的两期经济模型,我们展示了自然灾害对中长期经济增长的潜在影响。我们特别关注这些冲击对投资的影响。我们研究了两种极端的情况:一种是经济主体可以不受限制地进入资本市场,另一种是经济主体可以不受限制地进入资本市场,另一种是经济主体被假定在金融自给自足的情况下运行。考虑到这些极端情况,我们可以突出灾害与经济不发达之间的相互作用,这种不发达表现为金融市场的不发达。我们的理论模型的预测是用1979-2007年期间国家-年度自然灾害事件的一组数据进行检验的。我们发现,对于金融部门发展水平较低的国家,自然灾害对中期经济增长有持续的负面影响。这些结果经得起各种检验。
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引用次数: 99
Equity Tail Risk Before and after the Financial Crisis 金融危机前后的股票尾部风险
Pub Date : 2011-09-28 DOI: 10.2139/ssrn.1935035
Andreas Steiner
We try to reconcile the popular opinion that the Financial Crisis has fundamentally altered equity risk characteristics with empirical data. Our analysis based on Extreme Value Theory suggests that equity tail risks have remained remarkably stable. This means that the loss dynamics of S&P 500 experienced since October 2007 could have been anticipated by equity investors as well as equity investment managers performing quantitative risk analysis.
我们试图调和流行的观点,即金融危机已经从根本上改变了股票风险特征与实证数据。我们基于极值理论的分析表明,股票尾部风险保持了显著的稳定。这意味着标准普尔500指数自2007年10月以来的亏损动态可以被股票投资者以及进行定量风险分析的股票投资经理所预测。
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引用次数: 0
Changes in the Constituents of the S&P 500 Index and the Performance of the Index 标准普尔500指数成分股的变化和指数的表现
Pub Date : 2011-09-24 DOI: 10.2139/ssrn.1933197
Ebenezer Asem, S. Alam
We investigate whether performance enhancement motivates the changes to the constituents of the Standard and Poor’s 500 Index, and whether these changes in fact enhance the Index’s performance. To test these, we compare the performance of the stocks that were deleted from the Index to the performance of those that were added before and after the delete/add events. Our results show that stocks that were added to the Index outperform those that were replaced before the events, suggesting that performance enhancement is a driver of the S&P committee’s delete/add decisions. Also, we find that the stocks that were added to the Index outperform those that were replaced after the events, indicating the delete/add events enhance the Index’s performance.
我们研究绩效提升是否激励了标准普尔500指数成分股的变化,以及这些变化是否实际上提高了指数的绩效。为了验证这一点,我们将从指数中删除的股票的表现与删除/添加事件前后添加的股票的表现进行比较。我们的研究结果显示,被纳入指数的股票表现优于在事件发生前被替换的股票,这表明业绩提升是标准普尔委员会做出删除/添加决定的驱动因素。此外,我们发现加入指数的股票表现优于事件发生后被替换的股票,表明删除/添加事件增强了指数的表现。
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引用次数: 0
House Prices and Home Ownership: A Cohort Analysis 房价与住房所有权:一个队列分析
Pub Date : 2011-09-23 DOI: 10.2139/ssrn.1932634
R. Bottazzi, Thomas F. Crossley, M. Wakefield
England has very volatile house prices. We use pseudo-panel data spanning multiple house-price cycles over nearly forty years, to assess the extent to which house prices affect access to home ownership by age thirty, and whether differences in ownership rates persist. We find that ownership rates at age thirty have varied substantially, with this variation significantly related to prices. Measurement error problems - attenuation bias and other biases - complicate an analysis of the persistence of these differences in ownership. We use two methods - including one that develops the ideas of Deaton (1985) - to deal with this and find robust evidence that cohorts with low ownership rates at thirty close about 80% of the ownership gap by age forty.
英国的房价非常不稳定。我们使用了近四十年来跨越多个房价周期的伪面板数据,以评估房价对30岁之前获得住房所有权的影响程度,以及住房拥有率的差异是否持续存在。我们发现,30岁人群的房屋拥有率变化很大,这种变化与价格有很大关系。测量误差问题——衰减偏差和其他偏差——使对所有权差异持久性的分析复杂化。我们使用了两种方法——其中一种方法发展了Deaton(1985)的思想——来处理这个问题,并找到了有力的证据,证明30岁时低拥有率的人群在40岁时缩小了80%的拥有率差距。
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引用次数: 3
期刊
Econometrics: Applied Econometrics & Modeling eJournal
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