Continuity properties of the private core

Let be a sequence of differential information economies, converging to a limit differential information economy (written as ). Denote by the set of all ε-private core allocations, ε ≥ 0 (for ε=0 we get the private core of Yannelis (1991), denoted by ). Under appropriate conditions, we prove the following stability results

企业变异下的监管困境

股份公司产权的变化使得企业生产目的的两重性矛盾尖锐化,在相关条件的配合下,企业的矛盾就会在证券市场上,通过企业违规和股民投机的方式表现出来。而来自内部和外部的监管,也会由于一些一般性的原因而陷于困境。     

Blocking efficiency in an economy with asymmetric information

In this paper, we study a pure exchange atomless economy with asymmetric information and having an ordered Banach space with an interior point in its positive cone as the commodity space. An extension of the main theorem in Vind (1972) to the private core without free disposal is established. As a particular case of this result, a solution to a problem mentioned in Pesce (2010) is derived.     

定向增发、资产注入与股市波动——股权分置改革后的股市脆弱性模型推导及其政策含义

股权分置改革的完成并不能消除上市公司大股东与中小股东之间的利益冲突。在全流通时期,大股东理性参与上市公司的定向增发、资产注入及其后的股份减持很可能诱致股市的过度波动。对这种股市过度波动所引致的股市脆弱性机理我们进行了模型推导和因子分析。分析表明,牛市中,大股东参与定向增发、资产注入会导致牛市的助涨。而当熊市来临时,大股东会停止资产注入并减持股份,进而起到熊市助跌的作用。针对由此引起的股市脆弱性,监管部门应采取相应的监管措施。     

"上证"A股市场情绪的关键影响因素

文章从投资者认知偏误视角,研究提出了"上证"A股市场情绪的四维量表,系统整合了18个关键影响因素,形成中国证券市场情绪的关键影响因素概念模型.采用"上证"A股市场中152家企业的调研数据,进行验证性因子分析和拟合优度检验.结果表明,12个理论因素按预期模式加载,形成了认知偏误、有限套利、交互传染和本土特性等四个维度,对认识中国证券投资者的决策行为具有一定指导意义.     

关于发展我国企业债券市场的探讨

我国企业债券市场是资本市场最具发展潜力的部分 ,对于我国金融业的发展和完善会发挥日益重要的作用。文章在回顾企业债券市场的发展历程和分析企业债券市场的现状的基础上 ,找出企业债券市场存在的三大问题 ,相应的提出了企业债券发行的核准制 ,发展机构投资者 ,企业债券利率市场化的发展对策。     

Private benefits from control block trades in the Spanish stock exchange

A control block trade can be explained by the expectation of financial gains, shared by all shareholders, or by the expectation of private benefits, exclusive to the buyer and possibly at the expense of other shareholders’ rents. The market for corporate control contributes to social welfare when it improves the efficiency of the allocation of resources. When the objective of a block transaction is private benefits, social welfare may be negatively impacted as minority shareholders could withdraw from the market. Therefore the estimation of private benefits would allow the efficiency of the market for corporate control to be assessed. Specifically, the aim of this paper is to calculate private benefits in the Spanish market for partial control. Using a sample of partial control transactions over the period 1990–2016, we find that the median of private benefits is negative, therefore it appears that there is no inefficient use of resources in the Spanish partial control market as a whole, however private costs are detected. The variability of private benefits is explained in a significant way by variables related to the control structure of the target firm, such as the controlling position of the buyer after the transaction, the contestability of control and the cross-shareholdings between the buyer and large shareholders. Performance and the size of the firm are significant as well.     

Private enforcement,corruption, and antitrust design

We examine how the rationale for enabling versus precluding private antitrust enforcement depends on whether antitrust enforcement is corruption-free or plagued by corruption. Corruption in courts affects the incentives to bring forth private antitrust lawsuits. This, in turn, along with corruption in antitrust agency enforcement, alters the incentives to commit antitrust violations. The social welfare effect of enabling private antitrust enforcement in the presence of corruption depends on whether corrupt officials in the ensuing bribery contests favor a particular firm and if so which one and to what extent. Under some circumstances, corruption actually increases the social desirability of private antitrust enforcement relative to the no-corruption scenario. Our analysis highlights that the effects of a given legal arrangement for antitrust enforcement critically depend on the corruption environment and, thus, that the appropriate design of antitrust institutions is context-specific.     

Mass media effects on trading activities: television broadcasting evidence from Japan

This study examines how information broadcasting through television (TV) media influences stock market activities. Consistent with the effect of TV information to attract investor attention, we find that increased information flow through TV is significantly associated with greater trading volume and larger price change. For information type, hard news from business-oriented programmes and earnings-related news strongly contributes to the attention effect, while the effect of soft news is weaker. Bid–ask spread widens for more TV information flows, suggesting that new information arrival in the market expands information asymmetry. Finally, the impact of TV is more influential for stocks with more individual shareholders than those with institutional shareholders.     

银行间市场投资人结构及监管:理论综述及国外实践

银行间市场在我国金融市场体系中的地位和作用日益突出,也成为促进我国金融结构优化不可或缺的重要因素,当对于其内涵和功能,学术界还存在一些不同的认识。银行间市场的投资人及监管,是该市场健康发展的核心要素,对此我们有必要在重新梳理其基本特点的同时,选择国外类似的市场进行比较分析,从而找出可资借鉴的经验。