How Retailers’ Recommendation and Return Policies Alter Product Evaluations

This research investigates the interactive effects of retailers’ recommendations and return policies on consumers’ post-purchase evaluations of products which yield a mixed attribute performance. This article presents an account of the consumers’ post-purchase product evaluation process, in which counterfactual thinking plays a central role. Two studies show that consumers’ post-purchase evaluations of products, which yield a mixed attribute performance, tend to be more favorable under lenient return policies than under restricted return policies when retailers offer recommendations during the pre-purchase decision-making process, but more favorable under restricted return policies than under lenient return policies when retailers offer no recommendations.     

Increased market response to earnings announcements in the 21st century: An Empirical Investigation

We examine the role of concurrent information in the striking increase in investor response to earnings announcements from 2001 to 2016, as measured by return variability and volume following Beaver (1968). We find management guidance, analyst forecasts, and disaggregated financial statement line items are more frequently bundled with earnings announcements, and each of these items explains part of the increase in market response. Furthermore, collectively, these concurrent information releases explain a substantial fraction of the increase in market response to earnings announcements since 2001. This is in contrast to the decline in market response to management guidance issued separately from earnings and the much smaller increase in market response to analyst forecasts issued separately from earnings over this time. The findings indicate that information arrival at earnings announcement dates has increased significantly over the past two decades, and that key components of this are increased disclosures by management of guidance and financial statement line items and forecasts by analysts.     

D&O insurance and IPO performance: What can we learn from insurers?

We investigate whether a firm’s directors’ and officers’ liability insurance contract at the time of the IPO is related to insured firms’ first year post-IPO performance. We find that insurers charge a higher premium per dollar of coverage to protect the directors and officers of firms that will subsequently have poor first year post-IPO stock performance. A higher price of coverage is also associated with a higher post-IPO volatility and lower Sharpe ratio. Our results are robust to various econometric specifications and suggest that even when the high level of information asymmetry inherent to the IPO context prevails, insurers have information about the firms’ prospects that should be valuable to outside investors.     

中国农村人力资本收益率研究

本项研究依据的数据资料是“中国人力资本投资与城乡就业相关性研究”课题组在 2 0 0 2年 7月至 2 0 0 3年 1月对全国 1 5省市进行的问卷调查。在对数据进行分析的基础上 ,使用计量经济学的相关模型估计了中国农村不同形式人力资本收益率。     

中小企业板新股初始收益率的因素贡献度实证研究

本文利用主成份分析法,探讨了影响中小企业板新股初始收益率的主要因素,测度了各因素对初始收益率的贡献度。发现初始收益率主要取决于一、二级市场状况,而内在价值、盈利成长性等关键财务指标,对初始收益率的影响力居于次要地位。     

股票市场流动性溢价的实证研究

资产流动性的高低是否影响资产的价格一直是资本市场理论研究的热点问题，也是投资者决策的重要理论依据之一。本文根据股票市场流动性溢价原理，选取换手率与Amivest流动比率作为股票流动性的衡量指标，采用LR两阶段截面回归方法与似无关回归（SUR）估计法，对上海股票市场的股票流动性与预期收益率的关系进行了实证研究。结果表明，上海股票市场存在显著的流动性溢价，换手率低或Amivest流动比率低，流动性较差的资产具有较高的预期收益。研究同时发现，上海股票市场具有很强的规模效应和价值效应。     

创业板投资者情绪及其收益率相关性研究

本文采用向量自回归模型VAR方法分别研究了我国主板市场与创业板市场投资者情绪与收益率之间影响是系。研究发现我国主板市场中投资者情绪对收益率有显著影响,而收益率对投资者情绪无显著影响;而创业板市场表现不同,投资者情绪对收益率无显著相关影响。研究表明:出现上述现象的原因是由于两市场的投资者结构存在差异,创业板市场投资者更成熟、创业板政策及监管更为全面等原因。     

净资产收益率指标反映上市公司盈利能力问题探讨

考察一个公司的盈利能力,公认的财务指标是ROE(净资产收益率)。ROE反映的是实际投资收益水平,其充分考虑了毛利水平、资产周转率、财务杠杆等因素,是衡量上市公司盈利能力的核心指标。因此深刻理解其内涵,仔细了解其功用,有助于证券市场投资者正确评估股票内在价值,做出正确的投资决策。     

Does program trading contribute to excess comovement of stock returns?

Daily returns of stocks with high program trading comove more with each other but less with others. This significant comovement is disconnected with market movements and news of fundamentals and becomes stronger when market uncertainty is higher. It can be explained by neither the hypotheses of gradual information diffusion and liquidity provision nor the effects of quantitative trading signals, earnings announcements and index fund trading. Its non-fundamental nature is further demonstrated by the observation of program trading stimulating return reversals. Underlying this comovement is the high persistence of program trading. Our findings support the theory of habitat investing and demonstrate program trading creates a distinct source of excess return comovement.     

Return windows and the value relevance of earnings

Research on the value relevance of annual earnings commonly accumulate stock returns over a 12-month period starting from the fourth month of the fiscal year, resulting in a mismatch between the return window and the earnings period (i.e. the fiscal year). By comparing this return window with alternative windows, we show that the mismatch produces a downward bias in the estimated R² from the regression of stock returns on earnings, especially for firms that announce earnings early. Our results also show that both profits and losses are more value relevant when announced earlier, supporting regulatory calls for timely disclosure.