Individual versus institutional investors and the weekend effect

Since the late 1980’s, considerable research has focused on the behavior of individual versus institutional investors and the potential patterns which may emerge from their trading activities. Miller (1988) and Abraham and Ikenberry (1994) posit that the tendency for negative Monday returns on equity (i.e., the weekend effect) is at least partially explained by the trading behavior of individual investors. Sias and Starks (1995), on the other hand, present empirical evidence showing a dominant role played by institutional traders. This study contributes to the literature by distinguishing between individual versus institutional trading as it relates to the weekend effect. We find that the information-processing hypothesis is consistent with observed institutional trading patterns, thus supporting the results of Sias and Starks (1995). In addition, these results are shown to be robust with respect to market type (i.e., auction and dealer markets).     

Financial Markets for Unknown Risks if Beliefs Differ

We consider a general equilibrium model with individual and collective risks. The article builds on a contribution by Chichilnisky and Heal, who show that contingent Arrow–Debreu equilibria can also be supported in economies with Arrow securities and mutual insurance contracts. However, they show this to be true in general only if beliefs are identical, a very restrictive assumption in the context of unknown risks. Moreover, they claim complete insurance in equilibrium to be impossible if beliefs are different. We show that even with different beliefs, firstly, complete insurance is possible in each statistical state, and secondly, contingent equilibrium can still be supported in economies with insurance and securities.     

三类餐馆顾客体验实证研究

不同定位的餐馆带给顾客不同的体验,了解这种感知上的差异对于提高餐饮业的管理水平具有重要意义.论文调研了豪华餐馆、大众餐馆和快餐店中的顾客体验,研究证实在不同种类的餐馆,菜肴质量、服务环境和员工服务对顾客的情感体验和社会体验具有不同的影响,并且顾客在三类餐馆的就餐目的也有很大差异.     

如何确保产品标准的科学合理性

要提高产品质量，必须确保产品标准的科学合理性。文章简述了企业产品标准中存在的主要问题，并提出了确保企业产品标准科学合理性的对策。     

Institutional Investors' Trading in Speculation: Evidence from China

The trading behaviour of institutional investors has attracted much attention. However, many issues related to their trading behaviour cannot be addressed without high‐frequency changes in institutional ownership. Based on a measure of the trading behaviour of institutional investors by using an institutional account dataset from China, we find that (i) active institutions trade speculatively by taking advantage of individual investors; (ii) individuals buying high and selling low offer liquidity only on average; (iii) foreign investors do not show significant patterns in speculation; and (iv) trading of active institutions significantly affects price. This study casts doubt on the conventional wisdom that institutional or sophisticated investors improve market efficiency by correcting mispricing, and provides direct evidence for institutional investors' speculation behaviour and their destabilising effect on the stock market. Results suggest that regulators in emerging markets should monitor institutions' speculation to bring fairness and justice to the stock market.     

个性特征、劳动契约与员工劳动关系满意度--基于广州市花都区部分员工的问卷调查分析

基于广州市花都区部分企业员工的调查数据,通过探索性因子分析及验证性因子分析发现,员工劳动关系满意度由工资福利、工作特性与氛围和社会环境与服务三个维度构成。签订短期劳动契约的员工对工资福利的满意度最高,签订中长期劳动契约的员工对工作特性与氛围、社会环境与服务的满意度最高。年龄越大,其劳动关系满意度越高;劳动者工作转换次数与其劳动关系满意度呈负相关。由此,应该积极推进劳动契约全覆盖并鼓励企业与员工签订中长期劳动契约;严格工资管理,维护职工权益;强化职业认同,减少员工工作转换频率。     

从个体理性到交往理性：东海铸锻担保圈风险的形成和化解

交往主体作为“经济人”,在市场的博弈过程中,追逐自身利益最大化是个体理性的选择,但在日常经济活动中,个体理性往往导致集体非理性结局。本文运用哈贝马斯的“交往理性”理论剖析了山东省聊城市东海铸锻破产案,在政府主导或外部力量适度干预下,通过谈判磋商,最终促进多家银行与企业达到交往理性的均衡状态,并据此提出了相关风险处置的顶层设计。     

新型军人养老保险制度的构建及其转轨成本测算

我国现行军人养老保险是军队统筹,且保障范围狭窄、制度衔接不畅、实际养老待遇较低、财政负担过重、基金管理效率低下;为实现养老保险制度全民统筹和切实保障军人的养老权益,应构建社会统筹与个人账户相结合、辅以年金账户的新型军人养老保险制度。军人养老保险制度的转轨成本来源于当前军人养老保险制度下隐性债务的显性化,采用系统动力学模型对军人养老保险制度的转轨成本进行模拟测算,结果表明：截至2090年底转轨成本将全部显性化,“老人”和“中人”的转轨成本都呈先增后减的趋势,2035—2065年的转轨成本最高;借助社会统筹账户资金积累的缓冲和人口年龄与人口结构的变化,能够分散制度转轨带来的财务支付风险,改革不会对政府财政带来巨大压力。因此,应坚持养老保险社会统筹的改革方向,积极推进军人养老保险制度改革。     

Earnings Metrics,Information Processing,and Price Efficiency in Laboratory Markets

An enduring issue in financial reporting is whether and how salient summary measures of firm performance (“earnings metrics”) affect market price efficiency. In laboratory markets, we test the effects of salient earnings metrics, which vary in how they combine persistent and transitory elements, on investor information search, beliefs about value, offers to trade, and market price efficiency. We find that including transitory elements in salient earnings metrics causes traders to search unnecessarily for further information about these elements and to overestimate their effect on fundamental value relative to a rational benchmark. In contrast, separately displaying persistent elements in earnings increases the accuracy of traders’ value estimates. Prices generally reflect traders’ beliefs about value, and prices are most efficient when transitory elements are excluded from earnings metrics entirely. Our study contributes to research on salience effects in financial reporting by showing that including transitory elements in salient earnings metrics causes inefficient information search and biased beliefs about value that can aggregate to affect market prices. We also contribute to research in experimental markets by showing that redundant disclosure is not always beneficial; redundant disclosure of transitory earnings elements, in particular, appears to have negative consequences for investor behavior and market efficiency.     

Corporate and Individual Influences on Managers' Social Orientation

This paper reports research on the influence of corporate and individual characteristics on managers' social orientation in Germany. The results indicate that mid-level managers expressed a significantly lower social orientation than low-level managers, and that job activity did not impact social orientation. Female respondents expressed a higher social orientation than male respondents. No impact of the political system origin (former East Germany versus former West Germany) on social orientation was shown. Overall, corporate position had a significantly higher impact on social orientation than did the characteristics of the individuals surveyed.