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Asset Pricing With and Without Garbage: Testability of Consumption-based Models 有和没有垃圾的资产定价:基于消费的模型的可测试性
Pub Date : 2021-09-20 DOI: 10.2139/ssrn.3417217
Stefanos Delikouras, George M. Korniotis
This paper challenges the view that alternative consumption measures (e.g., garbage, fourth quarter, unfiltered consumption) can address the empirical shortcomings of consumption-based asset pricing. Instead, we show that testing alternative consumption processes is a triple hypothesis problem, which, in addition to finding the most accurate consumption measure, requires specifying and estimating the dynamics of consumption growth and testing the functional form of investor preferences. The existing literature tends to make strong assumptions on consumption dynamics (i.i.d.) and investor preferences (CRRA). We show that relaxing these assumptions leads to different results regarding the fit and preference parameters of the various consumption measures.
本文挑战了替代消费措施(例如,垃圾,第四季度,未经过滤的消费)可以解决基于消费的资产定价的经验缺陷的观点。相反,我们表明,测试替代消费过程是一个三重假设问题,除了找到最准确的消费衡量标准外,还需要指定和估计消费增长的动态,并测试投资者偏好的功能形式。现有文献倾向于对消费动态(i.i.d)和投资者偏好(CRRA)做出强有力的假设。我们表明,放宽这些假设导致不同的结果,关于适合和偏好参数的各种消费措施。
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引用次数: 1
Virtual Shareholder Meetings 虚拟股东大会
Pub Date : 2021-07-01 DOI: 10.2139/ssrn.3743064
François Brochet, Roman Chychyla, F. Ferri
We examine determinants and consequences of virtual shareholder meetings (VSMs) using a sample of voluntary (precoronavirus disease 2019) and forced (i.e., because of coronavirus disease 2019) VSM adopters. Voluntary adopters are tech firms and firms traditionally more engaged with shareholders, consistent with the stated objective to increase shareholder participation. In contrast, we do not find that firms choose the virtual format to avoid shareholders’ scrutiny. Textual analysis of transcripts suggests that in VSMs, business presentations by management are less frequent, shorter, and more generic but only among voluntary adopters, suggesting that these properties reflect a firm’s choice rather than are a by-product of the virtual format per se. VSMs are more likely to exhibit no questions during the question and answer period, but conditioned upon having one question, they exhibit the same number of questions; such questions are more negative in tone, inconsistent with managers using the virtual format to filter out hostile questions. Finally, there is some evidence of greater abnormal absolute returns around VSMs, supporting the notion that greater attendance translates into greater information content. Overall, VSMs exhibit less activity on average, consistent with critics’ concerns, but such reduced activity does not appear to cause a loss in information content nor does it appear to reflect an attempt to avoid scrutiny. This paper was accepted by Suraj Srinivasan, accounting. Supplemental Material: The data files are available at https://doi.org/10.1287/mnsc.2023.4946 .
我们使用自愿(2019年冠状病毒病前)和被迫(即由于2019年冠状病毒病)采用虚拟股东大会(VSM)的样本来研究虚拟股东大会(VSM)的决定因素和后果。自愿采用者是科技公司和传统上与股东更密切接触的公司,这与提高股东参与的既定目标是一致的。相比之下,我们没有发现公司选择虚拟格式以避免股东的审查。对文本的文本分析表明,在VSMs中,管理层的业务演示更少、更短、更通用,但仅在自愿采用的用户中,这表明这些属性反映了公司的选择,而不是虚拟格式本身的副产品。vsm更有可能在问答期间不提问,但在只有一个问题的条件下,他们会展示相同数量的问题;这类问题的语气更为消极,与管理者利用虚拟形式过滤敌意问题的做法不一致。最后,有一些证据表明,vsm的异常绝对回报更高,这支持了这样一种观点,即更多的参会者意味着更多的信息内容。总体而言,VSMs平均表现出较少的活动,与批评者的担忧一致,但这种减少的活动似乎并没有造成信息内容的损失,也没有反映出试图逃避审查。这篇论文被会计Suraj Srinivasan接受。补充资料:数据文件可从https://doi.org/10.1287/mnsc.2023.4946获取。
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引用次数: 4
Do Counter-Stereotypical Female Role Models Impact Women's Occupational Choices? 反传统的女性角色模式会影响女性的职业选择吗?
Pub Date : 2021-03-02 DOI: 10.2139/ssrn.3796264
Vidhi Chhaochharia, Mengqiao Du, Alexandra Niessen-Ruenzi
This paper examines the impact of counter-stereotypical female role models on women's labor supply and occupational choices. Using hand-collected data from Gallup surveys that cover a long time series, we create a direct measure of counter-stereotypical female role models based on the fraction of local survey respondents who admire famous women in business, politics, or science. We show that the presence of counter-stereotypical female role models is associated with more women participating in the labor market, working in male-dominated industries, choosing occupations with abstract tasks, and taking managerial positions, which eventually alleviates the gender pay gap.
本文考察了反刻板印象的女性榜样对女性劳动力供给和职业选择的影响。我们使用从盖洛普(Gallup)长期调查中手工收集的数据,根据当地调查受访者中崇拜商界、政界或科学界著名女性的比例,创建了一个反刻板印象的女性榜样的直接衡量标准。我们的研究表明,反刻板印象的女性榜样的存在与更多女性参与劳动力市场、在男性主导的行业工作、选择具有抽象任务的职业以及担任管理职位有关,这最终缓解了性别收入差距。
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引用次数: 0
Center of Volume Mass: Does Options Trading Predict Stock Returns? 成交量中心:期权交易能预测股票收益吗?
Pub Date : 2019-12-17 DOI: 10.2139/ssrn.3505045
Gennaro Bernile, Fei Gao, Jianfeng Hu
We examine whether the distribution of trades along the set of strike prices of option contracts on the same stock contains information about underlying price discovery. We show that option traders' demand for delta exposure drives the volume-weighted average strike-spot price ratio (VWKS). In turn, we find that VWKS predicts underlying returns and anticipates the flow of fundamental information about the stock. The return predictability is greater but not limited to stocks with higher information asymmetries and arbitrage costs, and becomes stronger ahead of value relevant news. Overall, options trading appears to play an important informational role for underlying markets.
我们研究沿同一股票的期权合约执行价格集的交易分布是否包含有关基础价格发现的信息。我们发现期权交易者对增量敞口的需求驱动了成交量加权平均行权-现货价格比率(VWKS)。反过来,我们发现VWKS预测潜在的回报,并预测有关股票的基本信息的流动。收益可预测性更大,但不限于信息不对称和套利成本较高的股票,在价值相关新闻之前变得更强。总的来说,期权交易似乎对标的市场起到了重要的信息作用。
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引用次数: 1
Under-Reaction to Political Information and Price Momentum 对政治信息和价格动量的反应不足
Pub Date : 2018-06-06 DOI: 10.2139/ssrn.2425204
Jawad M. Addoum, Stefanos Delikouras, Da Ke, Alok Kumar
This study examines whether momentum in stock prices is induced by changes in the political environment. We find that momentum profits are concentrated among politically sensitive firms and industries. During the 1939 to 2016 period, a trading strategy with a long position in winner portfolios (industries or firms) that are politically unfavored and a short position in losers that are politically favored eliminates all momentum profits. Further, our political sensitivity based factor (POL) explains 23-27% (42-43%) of monthly stock (industry) momentum alphas, and generates large increases in time-series R-squared for the momentum factor. This incremental explanatory power is especially strong around presidential elections, when the level of political activity is high. Collectively, our results suggest that investor underreaction to political information generates momentum in stock and industry returns.
本研究考察股票价格的动量是否受政治环境变化的影响。我们发现动量利润集中在政治敏感的公司和行业。在1939年至2016年期间,在政治上不受欢迎的赢家投资组合(行业或公司)持有多头头寸,在政治上受欢迎的输家投资组合持有空头头寸,这种交易策略会消除所有动量利润。此外,我们基于政治敏感性的因子(POL)解释了每月股票(行业)动量α的23-27%(42-43%),并为动量因子产生了时间序列r平方的大幅增长。在总统选举期间,当政治活动水平很高时,这种增量解释力尤其强大。总的来说,我们的研究结果表明,投资者对政治信息的反应不足会产生股票和行业回报的动力。
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引用次数: 4
Influential Observations and Inference in Accounting Research 会计研究中的影响观察与推论
Pub Date : 2017-08-15 DOI: 10.2139/ssrn.2407967
A. Leone, Miguel Minutti-Meza, Charles E. Wasley
ABSTRACT Accounting studies often encounter observations with extreme values that can influence coefficient estimates and inferences. Two widely used approaches to address influential observations ...
会计研究经常遇到极端值的观察值,这些值会影响系数估计和推断。两种广泛使用的方法来处理有影响力的观察结果…
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引用次数: 207
Non-Marketability and One-Day Selling Lockup 非市场性和一日售锁
Pub Date : 2015-09-01 DOI: 10.2139/ssrn.2563312
Jiangze Bian, Tie Su, Jun Wang
We extend previous studies on the effect of non-marketability on stock prices, and examine a very unique short-lived repeating non-marketability that lasts for only less than one day in China. Using the equity call warrants that are not subject to this trading constraint as a control, we provide evidence that such a one-day trading lockup prices a stock at a discount to the stock value implied from the warrants. We further show that the discount decreases throughout the trading day and that investors tend to purchase more stocks when the one-day trading lockup becomes less binding toward the market close. The findings suggest that, in line with the liquidity-based asset pricing theories, one channel through which the non-marketability constraint causes the price discount is that the restriction on asset liquidity or marketability may adversely affect investor demand, thus lowering the equilibrium price.
我们扩展了之前关于非市场性对股票价格影响的研究,并研究了中国一个非常独特的短期重复非市场性,持续时间不到一天。使用不受此交易约束的股票认购权证作为对照,我们提供证据表明,这种为期一天的交易锁定期使股票的价格低于权证所隐含的股票价值。我们进一步表明,折扣在整个交易日中减少,当一天的交易锁定在市场收盘时变得不那么具有约束力时,投资者倾向于购买更多的股票。研究结果表明,与基于流动性的资产定价理论一致,非市场性约束导致价格折扣的一个渠道是,对资产流动性或市场性的限制可能会对投资者需求产生不利影响,从而降低均衡价格。
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引用次数: 5
Credit Risk Determinants of Insurance Companies 保险公司信用风险的决定因素
Pub Date : 2014-03-11 DOI: 10.2139/ssrn.2325457
L. González, Lorenzo Naranjo
This paper investigates the determinants of credit risk in insurance companies in the U.S. and Europe. Consistent with recent results for non-financial firms in the U.S., we find that equity volatility is a major determinant and predictor of CDS spreads for both U.S. and European insurers, even after controlling for the composition of their investment portfolios and other firm-specific characteristics such as leverage and macro controls. Furthermore, we find macroeconomic factors to affect the credit risk of European but not U.S. insurers, whereas cash holdings seem to be relevant in explaining the credit spreads of U.S. insurance companies. We find that cash holdings and credit spreads of U.S. insurers are positively correlated. However, the availability of cash reduces the credit risk of firms experiencing positive solvency shocks. Overall, our results are economically significant and suggest that equity and credit markets incorporate quickly relevant information on the creditworthiness of large insurers.
本文研究了美国和欧洲保险公司信用风险的决定因素。与美国非金融公司最近的结果一致,我们发现股票波动是美国和欧洲保险公司CDS价差的主要决定因素和预测因素,即使在控制了投资组合的构成和其他公司特定特征(如杠杆和宏观控制)之后也是如此。此外,我们发现宏观经济因素会影响欧洲而非美国保险公司的信用风险,而现金持有量似乎与解释美国保险公司的信用利差有关。我们发现美国保险公司的现金持有量与信用利差呈正相关。然而,现金的可用性降低了企业经历积极偿付能力冲击的信用风险。总体而言,我们的研究结果具有经济意义,并表明股票和信贷市场迅速纳入了大型保险公司信誉的相关信息。
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引用次数: 6
To Whom, When, and How Much to Discount? A Constrained Optimization of Customized Temporal Discounts 给谁,什么时候,打折多少?自定义时间折扣的约束优化
Pub Date : 2013-09-27 DOI: 10.2139/ssrn.2332270
Joseph M. Johnson, G. Tellis, Eddie Ip
Customized temporal discounts are price cuts or coupons that are tailored by size, timing, and household to maximize profits to a retailer or manufacturer. The authors show how such discounts allow companies to optimize to whom, when, and how much to discount. Such a scheme allows firms to send just enough discounts just prior to the individual's purchase of a rival brand. To do so, the authors model household purchase timing and brand choice in response to discounts and use Bayesian estimation to obtain individual household parameters. They illustrate the model on a Japanese data set having price cuts, a US data set having coupons, and another US data set having discounts. They formulate the optimization task of customized temporal coupons as a constrained multiple-knapsack problem under a given budget. They use simulations of the empirical contexts to obtain optimal solutions and to assess improvement in profits relative to existing practice and alternate models in the literature. The proposed model yields increase in profits of 18–40 percent relative to a standard model that optimizes the value but not timing of discounts.
定制时间折扣是根据尺寸,时间和家庭定制的价格削减或优惠券,以使零售商或制造商的利润最大化。两位作者展示了这种折扣是如何让公司优化打折对象、时间和折扣金额的。这样的计划允许公司在个人购买竞争品牌之前提供足够的折扣。为此,作者根据折扣对家庭购买时间和品牌选择进行建模,并使用贝叶斯估计来获得单个家庭参数。他们在日本有降价的数据集、美国有优惠券的数据集和另一个美国有折扣的数据集上说明了这个模型。他们将定制时间券的优化任务表述为给定预算下的约束多背包问题。他们使用经验背景的模拟来获得最佳解决方案,并评估相对于文献中现有实践和替代模型的利润改进。与优化价值但不优化折扣时机的标准模型相比,所提出的模型的利润增加了18 - 40%。
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引用次数: 46
Institutional Trading during a Wave of Corporate Scandals: 'Perfect Payday'? 企业丑闻浪潮中的机构交易:“完美发薪日”?
Pub Date : 2013-08-01 DOI: 10.2139/ssrn.2159779
Gennaro Bernile, Johan Sulaeman, Qin Emma Wang
This paper examines the role of institutional trading during the option backdating scandal of 2006–2007. Unlike their inability to anticipate other corporate events, institutional investors as a group display negative abnormal trading imbalances (i.e., buy minus sell volumes) in anticipation of firm-specific backdating exposures. Consistent with informed trading, the underlying trades earn positive abnormal short- and long-term profits. Moreover, the negative abnormal imbalances are larger in magnitude when backdating is likely a more severe issue. Local institutions, in particular, display negative trading imbalances earlier in event-time and earn consistently higher trading profits than non-local institutions. Although we find some evidence of over-reaction following the arrival of information about the backdating scandal, these patterns are short-lived and exclusively due to the activity of non-local institutions. Overall, institutional investors behave as informed investors, particularly in local stocks, during this prolonged period of heightened uncertainty about corporate reporting and governance practices.
本文考察了2006-2007年期权回溯丑闻中机构交易的作用。与他们无法预测其他公司事件不同,机构投资者作为一个群体,在预期公司特定的回溯风险敞口时,表现出负的异常交易失衡(即买入减去卖出)。与知情交易一致,基础交易获得正的异常短期和长期利润。此外,当回溯可能是一个更严重的问题时,负异常失衡的规模更大。尤其是本地机构,在交易时段较早出现负的交易不平衡,并持续赚取比非本地机构更高的交易利润。虽然我们发现一些证据表明,在有关回溯丑闻的信息到来后,市场反应过度,但这些模式是短暂的,完全是由非本地机构的活动造成的。总体而言,在公司报告和治理实践的不确定性加剧的漫长时期,机构投资者表现得像知情的投资者,尤其是在本地股市。
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引用次数: 30
期刊
University of Miami Herbert Business School Research Paper Series
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