论股东派生诉讼与集团诉讼的结合

股东派生诉讼制度与集团诉讼制度有密切的联系。我国在建构股东派生诉讼制度的过程中应注意其与集团诉讼制度的结合。在股东派生诉讼中,原告股东应有广泛的代表性;公司和法院对于原告的起诉应当发布公告;公司原告的撤诉与和解应保障其他股东的知情权;派生诉讼的判决和法院批准的和解协议对全体股东均有约束力。     

公司违规与审计收费：违规公告异质性和作用机制

以审计定价模型为切入视角,探讨了违规公告内容与审计收费的关系,并进一步剖析违规诱增审计收费的作用机制。研究发现：违规公告异质性内容会对审计收费产生差异化影响,违规类型严重性和多样性、处罚措施严厉性均会显著诱增审计收费,而处罚措施多样性不会显著提高审计收费。进一步地,公司违规通过“审计成本”和“风险溢价”两条平行中介路径来诱增审计收费,且“审计成本”这条路径会受到事务所规模、任期长短、是否更换等变量的显著调节。研究说明违规公告文本内容能协助审计师评估风险,也表明不同情境下违规对审计收费的作用机理存在差异性。     

Private acquisition gains: A contingent claims explanation

This paper studies announcement returns of Western European acquisitions of private and public targets. It uses a contingent claims perspective to offer a new explanation for the difference in abnormal returns between acquirers of private and public targets. In this context, an acquisition is analogous to buying a call option and the value of the acquirer increases with uncertainty about its growth prospects (options). We test this idea by studying the relation between announcement returns and acquirer's characteristics that proxy for the existence of growth options. Consistent with the contingent claims hypothesis, the private acquisition gains are associated with the combined effects of growth options (having higher runup before the acquisition announcement) with low level of leverage (near-all equity capital) and with uncertainty (measured by age and analyst coverage of acquirers).     

Market segmentation and information values of earnings announcements: Some empirical evidence from an event study on the Chinese stock market

This paper investigates the trading activities of two distinct classes of shareholders, namely, the Chinese domestic investors and the foreign investors in the segmented Chinese A- and B-share markets, respectively. We conduct an event study on the annual earnings announcements based on two different accounting standards: International accounting standards (IAS) and PRC generally accepted accounting principles (PRC GAAP). The earnings announcements based on IAS and PRC GAAP are value relevant. The investors in the B-share market react to both the IAS and PRC GAAP earnings announcements, while the investors in the A-share market pay more attention to the PRC GAAP earnings reports. In the B-share market, positive abnormal returns are associated with positive earnings surprise and negative abnormal returns go with negative earnings surprise. We find preevent abnormal trading volumes without significant price changes for the A shares, which may be due to existing information in the A-share market prior to earnings announcements. The postevent abnormal trading volumes last for a longer period in the A-share market than in the B-share market.     

基于多自主体系统的区域自然资源开发利用问题研究

利用多自主体系统构建了人群开采区域自然资源模型,考虑自主体的开采策略与区域自然状态间的双向关系,利用博弈论中的雪堆模型定义了自主体收益矩阵,考察了区域自然恢复系数、收益矩阵取值与投入比例等参数对最终仿真结果的影响,进行了环渤海等地区的地下水资源开发利用问题的案例研究,得出了对理解人群实际开采行为及制定相关政策具有启示意义的结论。     

会计信息揭示的博弈分析

会计信息使用者和提供者之间由于利益不同而产生的对抗与冲突具有博弈性质。本文以税收部门和经营者的博弈关系为例,分析了博弈双方在经济活动中的对策选择,并提出规范博弈关系的一些建议。     

重婚无效宣告的法律问题

重婚在我国司法实务中包括事实上的重婚和法律上的重婚。事实上的重婚为当然无效的重婚，无须由法院宣告无效；而法律上的重婚须经法院宣告才能确定该婚姻自始不发生婚姻效力。前婚的有效终止是法律上的重婚无效宣告的阻却事由，这种终止除了离婚、被宣告无效以及被撤销，还应包括配偶一方的死亡。     

Earnings Announcements: Good News for Institutional Investors and Short Sellers

In this paper, we consider the trading behavior of institutional investors and short sellers around earnings announcements. The results suggest that institutional investors, and to a lesser extent short sellers, successfully anticipate earnings news. In the period immediately after the earnings announcement, both types of traders are active in the market and trade in response to the earnings announcement. In particular, short sellers are quick to increase their short positions when a company releases bad news. Institutional traders also trade in response to the news; however, they take longer to react.     

小额信贷商业化中的目标偏移——一个理论模型及西部小额贷款公司的经验研究

在商业化改革的趋势下,一些小额信贷机构的客户群上移,出现了目标偏移。本文通过建立理论模型,论证了在两类借款人交易成本存在较大差异的情况下,小额信贷机构的信贷目标定位对目标偏移问题的影响。利用西部小额贷款公司调研数据,本文验证了小额信贷商业化中的目标偏移问题以及小额信贷机构目标定位的影响。最后,本文提出差异化补贴、制定贷款对象监控机制以及考核社会绩效等建议,以期解决我国小额贷款公司的目标偏移问题。     

Stock Market Anomalies: What Can We Learn from Repurchases and Insider Trading?

We examine whether managers’ trading decisions (both at a firm and personal level) are correlated with trading strategies suggested by the operating accruals and the post-earnings announcement drift (SUE) anomalies. We discuss advantages and disadvantages of the use of managerial trading activity to infer managers’ private valuation about their own securities. Our results provide corroborative evidence for the accruals anomaly, i.e., managers’ repurchase and insider trading behavior varies consistently with the information underlying the operating accruals trading strategy. On the other hand, we do not find corroborative evidence for the SUE anomaly.