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A Test of the Conspicuous-Consumption Model Using Subjective Well-Being Data 基于主观幸福感数据的显著消费模型检验
Pub Date : 2013-05-01 DOI: 10.2139/ssrn.1934007
Ricardo Perez-Truglia
According to the conspicuous–consumption theory, people consume highly observable goods to signal their wealth to others. A growing body of evidence favors this signaling model. However, the empirical evidence available is still far from conclusive; thus, we provide evidence from a new angle. We show that the signaling model of conspicuous consumption predicts that a consumer’s well-being should increase based on his or her household’s ranking of observable consumption within its reference group, but should not be affected by its ranking in the distribution of unobservable consumption. We test this prediction using panel data on household expenditure and subjective well-being. Our evidence is consistent with the predictions of the signaling model.
根据炫耀性消费理论,人们通过消费高可见性商品来向他人展示自己的财富。越来越多的证据支持这种信号模型。然而,现有的经验证据仍远未达到结论性;因此,我们从一个新的角度提供了证据。我们表明,炫耀性消费的信号模型预测,消费者的福祉应该根据其家庭在其参考组中的可观察消费排名而增加,但不应该受到其在不可观察消费分布中的排名的影响。我们使用家庭支出和主观幸福感的面板数据来检验这一预测。我们的证据与信号模型的预测是一致的。
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引用次数: 54
Credit Default Swaps and the Market for Sovereign Debt 信用违约掉期和主权债务市场
Pub Date : 2013-04-30 DOI: 10.2139/ssrn.1785376
Iuliana Ismailescu, B. Phillips
In this paper, we analyze the determinants and effects of credit default swap (CDS) trading initiation in the sovereign bond market. CDS trading initiation is associated with a 30–150 basis point reduction in sovereign bond yields, with greater yield reductions accruing to higher default risk economies. For countries with high default risk, rated B or lower by Standard and Poor’s, CDS initiation is also associated with significant price efficiency benefits in the underlying market. CDS trading initiation is more likely following increases in local equity index volatility, index spreads for regional and global CDS markets, or depreciation of the local currency relative to the US dollar, and decreases in a country’s ability to service foreign debt. Our results are robust to selection bias controls based on these factors.
本文分析了主权债券市场信用违约互换(CDS)交易启动的决定因素及其影响。CDS交易启动与主权债券收益率下降30-150个基点有关,违约风险较高的经济体收益率下降幅度更大。对于违约风险较高、被标准普尔评级为B级或更低的国家,CDS的启动也与基础市场的显著价格效率效益有关。CDS交易更有可能在当地股指波动加剧、地区和全球CDS市场的指数价差加大、或当地货币相对于美元贬值、以及一国偿还外债能力下降的情况下启动。我们的结果对基于这些因素的选择偏差控制是稳健的。
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引用次数: 11
Mortgage Risk Exposure and the Effect of Broker Involvement 抵押贷款风险暴露和经纪人参与的影响
Pub Date : 2013-04-01 DOI: 10.2139/ssrn.1868276
Ruben Cox
This paper examines the effect of broker involvement on the LTV and DSR-ratios of mortgages. We show that after controlling for heterogeneity in underwriting standards among lenders, no marginal impact of brokers on debt-ratios is found, despite volume-based commission incentives. This is consistent with the idea that lenders only fund mortgages that conform to their credit standards, irrespective of broker involvement. Second, we test whether the availability of mortgage insurance alters these findings, as mortgage insurance can reduce loan screening and broker monitoring incentives in a similar fashion as securitization (Keys et al. 2010) through the transfer of credit risks. Again, the involvement of brokers is insignificant on debt-ratios. Our findings indicate that lender regulation is probably more effective in mitigating conflicts of interest between households and brokers, than changing compensation schemes or increasing broker regulation.
本文考察了经纪人参与对抵押贷款LTV和dsr比率的影响。我们表明,在控制了贷方之间承销标准的异质性之后,尽管有基于数量的佣金激励,但经纪人对债务比率没有边际影响。这与银行只为符合其信用标准的抵押贷款提供资金的想法是一致的,而不考虑经纪人的参与。其次,我们测试了抵押贷款保险的可用性是否改变了这些发现,因为抵押贷款保险可以通过转移信贷风险,以与证券化类似的方式减少贷款筛选和经纪人监控激励(Keys等人,2010)。同样,经纪人的参与对债务比率影响不大。我们的研究结果表明,在缓解家庭和经纪人之间的利益冲突方面,贷款人监管可能比改变补偿方案或增加经纪人监管更有效。
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引用次数: 0
A Bottom-Up Dynamic Model of Portfolio Credit Risk; Part I: Markov Copula Perspective 自下而上的组合信用风险动态模型第一部分:马尔可夫Copula视角
Pub Date : 2013-03-08 DOI: 10.2139/ssrn.1844574
T. Bielecki, Areski Cousin, S. Crépey, Alexander Herbertsson
We consider a bottom-up Markovian copula model of {portfolio} credit risk where instantaneous contagion is possible in the form of simultaneous defaults. Due to the Markovian copula nature of the model, calibration of marginals and dependence parameters can be performed separately using a two-steps procedure, much like in a standard static copula set-up. In this sense this model solves the bottom-up top-down puzzle which the CDO industry had been trying to do for a long time. It can be applied to any dynamic credit issue like consistent valuation and hedging of CDSs, CDOs and counterparty risk on credit portfolios.
我们考虑了一个自下而上的马尔可夫联结模型的{投资组合}信用风险,瞬时传染是可能的形式同时违约。由于模型的马尔可夫联结特性,边际和相关参数的校准可以使用两步程序单独执行,就像在标准静态联结设置中一样。从这个意义上说,这种模式解决了CDO行业长期以来一直试图解决的自下而上、自上而下的难题。它可以应用于任何动态信用问题,如信用违约掉期、债务抵押债券和信用组合的交易对手风险的一致估值和对冲。
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引用次数: 13
The Price Impact of Open Market Share Repurchases 公开市场股票回购对价格的影响
Pub Date : 2013-02-28 DOI: 10.2139/ssrn.1780967
Jonas Råsbrant
This paper examines the stock performance around initiation announcements of open market share repurchase programs, the price impact of repurchase trading and the long-run abnormal stock performance following the initiation announcements in a European regulatory framework. The study uses a unique dataset on initiation announcements and actual repurchases conducted by firms listed on the Stockholm Stock Exchange during the period 2000-2009. The results show that initiation announcements of open market repurchase programs exhibit a two-day abnormal return of approximately 2%. The price impact on the actual repurchase days is positively correlated with the daily repurchase volume, and is both statistically and economically significant during the first 3 repurchase days in a repurchase program. The long-run abnormal stock performance is positively associated with the fraction of shares bought in the program and is approximately 7% the first year following the initiation announcement. The results indicate that repurchase trading provides price support and that the market participants detect and perceive the initiation announcement and the first repurchase days in a repurchase program as a signal of undervaluation.
本文在欧洲监管框架下研究了公开市场股票回购计划启动公告前后的股票表现、回购交易的价格影响以及启动公告后的长期异常股票表现。这项研究使用了一个独特的数据集,包括2000年至2009年期间在斯德哥尔摩证券交易所上市的公司发布的启动公告和实际回购。结果表明,公开市场回购计划启动公告的两天异常收益率约为2%。价格对实际回购天数的影响与每日回购量呈正相关,在回购计划的前3个回购天数内,价格对实际回购天数的影响在统计上和经济上都显著。股票的长期异常表现与该计划中购买的股票比例呈正相关,在启动公告后的第一年,这一比例约为7%。结果表明,回购交易提供了价格支撑,市场参与者将回购计划中的启动公告和首次回购天数视为低估信号。
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引用次数: 16
Analyst Coverage and Two Puzzles in the Cross Section of Returns 分析师覆盖率和收益横截面的两个谜题
Pub Date : 2013-01-30 DOI: 10.2139/ssrn.1787152
Thomas J. George, C. Hwang
We examine a stylized version of Miller's (1977) hypothesis as the explanation of the puzzling ndings of both Chordia, Subrahmanyam and Anshuman (2001) and Ang, Hodrick, Xing and Zhang (2006). Identifying stocks that are prone to disagreement by using low analyst coverage produces results that are strongly consistent with the model's predictions.The low returns to high return volatility stocks are corrections of optimistic mispricing that arises because information arrivals generate disagreement among traders. Disagreement also implies a negative relation between returns and shocks to trading volume. The abnormal returns to a trading strategy based on idiosyncratic return volatility are explained by the returns to a strategy based on turnover volatility, suggesting that the same economic forces underlie both relations as the model predicts.
我们考察了米勒(1977)假设的一个程式化版本,作为对Chordia、Subrahmanyam和Anshuman(2001)以及Ang、Hodrick、Xing和Zhang(2006)令人困惑的结论的解释。通过使用低分析师覆盖率来识别容易出现分歧的股票,产生的结果与模型的预测非常一致。高回报波动性股票的低回报是对乐观的错误定价的修正,这种修正是由于信息到达导致交易员之间产生分歧而产生的。分歧也意味着回报与交易量冲击之间的负相关关系。基于特殊回报波动的交易策略的异常回报可以用基于周转波动的交易策略的回报来解释,这表明,正如模型所预测的那样,两种关系背后是同样的经济力量。
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引用次数: 7
Cross-Listing and Pricing Efficiency: The Informational and Anchoring Role Played by the Reference Price 交叉上市与定价效率:参考价格的信息锚定作用
Pub Date : 2012-12-12 DOI: 10.2139/ssrn.1916769
E. C. Chang, Yan Luo, Jinjuan Ren
When a firm cross-lists its shares in segmented markets, the price of the first issued share, as a reference, plays both an informational and anchoring role in pricing the second issued share. We develop a model illustrating the dual-role. Empirically, we examine a group of Chinese firms that first issue foreign shares and then domestic A-shares, for which the anchoring effect adds to the A-share underpricing. Consistent with the model predictions, we find that the A-share underpricing is positively related to the difference in costs of capital in the two segmented markets, and that this positive association is weaker when participants are less likely to resort to the anchoring heuristic and when the A-share valuation involves less uncertainty.
当公司在细分市场中交叉上市时,第一次发行股票的价格作为参考,对第二次发行股票的定价起着信息和锚定作用。我们开发了一个模型来说明这种双重作用。实证上,我们考察了一组先发行境外股票后发行国内a股的中国公司,锚定效应增加了a股的低定价。与模型预测一致,我们发现a股定价过低与两个细分市场的资本成本差异呈正相关,并且当参与者不太可能采用锚定启发式和a股估值涉及较少不确定性时,这种正相关关系较弱。
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引用次数: 38
Are Busy Boards Detrimental? 繁忙的董事会有害吗?
Pub Date : 2012-11-20 DOI: 10.2139/ssrn.1894776
L. Field, M. Lowry, A. Mkrtchyan
Busy directors have been widely criticized as being ineffective. However, we hypothesize that busy directors offer advantages for many firms. While busy directors may be less effective monitors, their experience and contacts arguably make them excellent advisors. Among IPO firms, which have minimal experience with public markets and likely rely heavily on their directors for advising, we find busy boards to be common and to contribute positively to firm value. Moreover, these positive effects of busy boards extend to all but the most established firms. Benefits are lowest among Forbes 500 firms, which likely require more monitoring than advising.
忙碌的董事被广泛批评为效率低下。然而,我们假设忙碌的董事为许多公司提供了优势。虽然忙碌的董事可能不是有效的监督者,但他们的经验和人脉无疑使他们成为优秀的顾问。在IPO公司中,他们在公开市场的经验很少,可能严重依赖董事提供建议,我们发现忙碌的董事会很常见,并对公司价值做出了积极贡献。此外,除了最成熟的公司外,董事会忙碌的这些积极影响还会扩展到所有公司。在《福布斯》500强企业中,福利最低,它们可能需要更多的监督而不是咨询。
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引用次数: 436
Momentum Loses Its Momentum: Implications for Market Efficiency 势头失去势头:对市场效率的影响
Pub Date : 2012-11-07 DOI: 10.2139/ssrn.1762264
Debarati Bhattacharya, Raman Kumar, Gokhan Sonaer
We evaluate the robustness of momentum returns in the US stock market over the period 1965 to 2010. We find that momentum profits have become insignificant since the late 1990s partially driven by pronounced increase in the volatility of momentum profits in the last 12 years. Past returns no longer explain the cross-sectional variation in stock returns, not even following up markets. The patterns in the post holding period returns of momentum portfolios and risk adjusted identification period buy and hold returns of stocks in momentum supports improvement in market efficiency as a possible explanation for the declining momentum profits.
我们评估了1965年至2010年期间美国股市动量回报的稳健性。我们发现,自20世纪90年代末以来,动量利润变得微不足道,部分原因是过去12年动量利润波动性的显著增加。过去的收益不再能解释股票收益的横截面变化,甚至不能解释后续市场。动量组合持有后收益和风险调整识别期买入持有动量股票收益的模式支持市场效率的提高作为动量利润下降的可能解释。
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引用次数: 12
Testing Linear Factor Models on Individual Stocks Using the Average F Test 用平均F检验检验个股线性因子模型
Pub Date : 2012-10-10 DOI: 10.2139/ssrn.620461
Soosung Hwang, S. Satchell
In this paper, we propose the average F -statistic for testing linear asset pricing models. The average pricing error, captured in the statistic, is of more interest than the ex post maximum pricing error of the multivariate F -statistic that is associated with extreme long and short positions and excessively sensitive to small perturbations in the estimates of asset means and covariances. The average F -test can be applied to thousands of individual stocks and thus is free from the information loss or the data-snooping biases from grouping. This test is robust to ellipticity, and more importantly, our simulation and bootstrapping results show that the power of the average F -test continues to increase as the number of stocks increases. Empirical tests using individual stocks from 1967 to 2006 demonstrate that the popular four-factor model (i.e. Fama-French three factors and momentum) is rejected in two sub-periods from 1967 to 1971 and from 1982 to 1986.
本文提出了检验线性资产定价模型的平均F统计量。在统计中捕获的平均定价误差比多元F统计量的事后最大定价误差更令人感兴趣,后者与极端多头和空头头寸有关,并且对资产均值和协方差估计中的小扰动过于敏感。平均F检验可以应用于数千只个股,因此不会因分组而导致信息丢失或数据窥探偏差。该检验对椭圆性具有鲁棒性,更重要的是,我们的模拟和自举结果表明,随着股票数量的增加,平均F检验的功率继续增加。对1967年至2006年个股的实证检验表明,流行的四因素模型(即Fama-French三因素和动量)在1967年至1971年和1982年至1986年两个子时期被拒绝。
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引用次数: 9
期刊
Econometrics: Applied Econometrics & Modeling eJournal
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