The Impact of Regulation Fair Disclosure on Information Asymmetry and Trading: An Intraday Analysis

This study examines the impact of Regulation Fair Disclosure (FD) on liquidity, information asymmetry, and institutional and retail investors trading behavior. Our main findings suggest three conclusions. First, Regulation FD has been effective in improving liquidity and in decreasing the level of information asymmetry. Second, retail trading activity increases dramatically after earnings announcements but there is a significant decline in institutional trading surrounding earnings announcements, particularly in the pre‐announcement period. Last, the decline in information asymmetry around earnings announcements is closely associated with a lower participation rate in the pre‐announcement period and more active trading of retail investors after earnings releases.     

开展地方国库现金管理的动因与模式选择研究—以宁夏为例

在当前流动性趋紧的形势下,开展地方国库现金管理有利于激活财政存量资金、增加地方财政收益,尤其是欠发达地区对实施国库现金管理的意愿日益高涨。本文探讨分析了开展地方国库现金管理的现实动因,认为现阶段宁夏回族自治区本级国库现金管理的模式应为“商业银行定期存款方式”,并通过Baumol扩展模型测算区级最佳库存现金余额。以期为开展地方国库现金管理提供有益参考。     

Selection dynamics and adaptive behavior without much information

This paper uses the experimental method to investigate behavior in a coordination game when the information available to subjects is limited to their feasible choices and their experienced payoffs. In the experiment subjects converge to an absorbing state at rates that are orders of magnitude faster than reinforcement learning algorithms, but slower than under complete information. This state is very close to a mutual best response outcome. All cohorts converged to the market statistic predicted by the interior equilibrium regardless of the information conditions or the stability conditions. Eric Battalio programmed the graphical user interface. The National Science Foundation and Texas Advanced Research Program provided financial support. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation or the Texas Advanced Research Program.     

锅炉压力容器安全阀选型和安装及整定压力需要注意的问题

针对锅炉压力容器安全阀选型和安装及整定压力等存在的问题提出一些需要注意事项。     

Privacy and Personnel Selection: Reciprocal Rights and Responsibilities

Previous models of invasion of privacy in selection have stressed applicant rights to the exclusion of applicant responsibilities, and have slighted organizational incumbents' needs to acquire accurate knowledge about prospective co-workers. To correct this imbalance, a reciprocal model, enumerating and justifying possible rights and responsibilities of applicants, organizational management, and organizational incumbents, is postulated. This normative model is contrasted with the current mistrust that characterizes many selection interactions. Propositions suggesting ways of gaining the information that organizations require, while still respecting the privacy needs of applicants, are advanced. Tentative suggestions for how human resource professionals could initiate these positive changes are suggested as well.     

股权分置下我国上市公司并购的逆向选择问题实证研究

基于对我国上市公司掏空行为和支持行为的分析,本文提出中国上市公司在股权分置下并购行为的逆向选择问题和长期均衡问题。文章通过对股票市场近10年的走势分析以及通过对2002～2003两年间180起并购事件的并购行为的实证研究,得到股权分置下掏空行为逆向选择问题和长期均衡特征:股市长期低迷,在低迷的股市中绝大部分上市公司更倾向于掏空行为。文章同时指出,我国的一股独大和股权分置的制度安排是这种逆向选择问题和社会福利低水平上长期均衡的重要影响因素。     

Reciprocity in Ranked Relationships: Does Social Structure Influence Social Reasoning?

Many economic and evolutionary theories have modeled cooperation as the evolutionary outcome of decisions made by autonomous, self-interested agents operating in a social vacuum. In this paper we consider the implications for cooperative interactions when prior social structures and corresponding social norms exist. In particular we investigate the influence of social rank/status on perceptions of fairness and tolerance of cheating. We review evidence from a series of experiments employing the Wason selection task (a test of conditional reasoning) and the ledger task (a decision making task) suggesting that people cued to adopt a perspective of high social rank are more tolerant of cheating and simultaneously believe that they have been more fairly treated (even when cheated) than people cued to adopt a perspective of low social rank. However, the evidence also suggests interesting cross-cultural differences in perceptions of fairness and tolerance of cheating in ranked relationships. This revised version was published online in August 2006 with corrections to the Cover Date.