上海A股市场股价波动相互影响能力实证研究

股票市场中股票价格的波动是相互影响的,但不同的股票其价格波动时对其他股票价格行为的影响能力是不同的。本文通过对我国上海A股市场的实证分析表明,有少数股票其价格波动时对其他股票价格行为有很强的影响能力,而大多数股票的这种影响能力很小。此外,单个股票价格波动时引起其他股票价格涨、跌的能力一般都有显著差异。     

加强供应链企业间的合作弱化牛鞭效应

减小供应链中＂牛鞭效应＂是实现供应链管理的关健,也是提升供应链企业竞争力的有效方式之一.本文在介绍了＂牛鞭效应＂概念及其产生原因的基础上,提出了如何通过加强供应链成员间的联系与合作达到有效弱化牛鞭效应.     

上市公司股利分配理性化引导

本文认为,我国上市公司股利不分配股利的公司居多,且分配股利的以股票股利为主,现金股利的支付水平极低。这种非理性化股利政策对我国上市公司、投资者和资本市场均造成了极为不利的影响。为此,迫切需要尽快将上市公司的股利分配引导到理性状态。     

投资者与股市博弈模型

本文从个股的角度，运用博弈论剖析了投资者在股市上的投资战略。研究表明，投资者是选择“较小止损”战略还是选择“较大止损”战略取决于该股票下跌的幅度。     

External cooperation and entrepreneurial orientation in industrial clusters

ABSTRACT

The aim of this paper is to examine the relationship between external cooperation and entrepreneurial orientation (EO). This relationship is explored in cluster environment, wherein entrepreneurial organizations compete and cooperate simultaneously to pursue opportunities. The following hypothesis is tested: External cooperation is positively correlated with entrepreneurial orientation. The hypothesis is tested with a correlation analysis on a sample of 77 small-sized enterprises operating in the Malopolska region in Poland, wherein several clusters are active. Additionally, the regression analysis is conducted to examine the associations between inter-organizational cooperation and EO dimensions. The findings confirm that external cooperation is positively correlated with EO. This observation is confronted with a pro-competitive approach that is a constitutional element of the entrepreneurship concept. Moreover, the findings show that the correlation between external cooperation and a firm’s performance is stronger than between some other EO dimensions and performance. Additionally, the findings show the important role of relationships between organizations and their clients. In the paper, several remarks for development of the theory are discussed, including the need for incorporating inter-organizational cooperation into a set of entrepreneurial traits and reflecting it in entrepreneurial orientation scales. The findings confirm the importance of that direction of theory development that focuses on inter-organizational collaboration in the context of entrepreneurship.     

Was there a Portfolio Effect of the Micro-economic Leverage ？ Some Empirical Evidence from the Chinese Stock Market

The study is on a linear model of the relationship between the systematic risk and the micro-economic leverage and analyzed the data from the steel, energy source and chemical fibre industry listed companies in the Chinese stock market in 2002 and 2001. Using the linear regression method, empirical equations were found. The portfolio effect was shown so that some empirical evidence had been found to support the micro-economic leverage portfolio effect theory, which was that the listed companies balanced the operating and financial leverage to minimize the systematic risk.     

Inter-local relations and trans-scaling through finance in Poland

Inter-local cooperation is difficult to measure. In Poland, however, the data-set concerning financial transfers between local government budgets (one of the most popular quantitative measures of cooperation) has never been described in scientific literature. This paper aims at contributing to fill this gap. On the basis of the budget expenditures of all Polish local governments, we applied two research methods: OLS regression and Heckman two-stage regression. The results show that the decision whether to get into cooperation, and the decision on the extent of involvement are driven by different factors.     

振兴东北老工业基地与内蒙经济发展区域协作的基本思路

东北三省和内蒙古东部组成的东北经济区,是我国最早形成并在结构上相对完整的大经济区,有着区域经济协作的天然条件和深厚基础。在振兴东北老工业基地的战略规划和实施中,要以区域经济一体化思想为指导,站在地区分工与协作的高度,分析和研究振兴东北老工业基地与内蒙古经济发展的相互关系,区域协作的阻滞性因素、协作的主体领域以及推进三省一区区域经济协作的总体措施,以实现要素区域间优化配置,从而加快振兴东北老工业基地的进程,使东北大经济区成为我国第四经济增长极。     

基于期权定价理论的所有者与债权人代理问题分析

所有者和债权人之间的代理关系是现代公司治理的重要要素,如何理解和处理二者之间的关系成为社会关注的核心。本文从期权角度对所有者与债权人之间的代理关系进行新的理解,并分别介绍了无风险套期保值、B-S期权定价理论模型的具体运用以及保护债权人利益的具体措施。     

Time variation in the cointegrating relationship between stock prices and economic activity

The present paper examines whether there exists a long‐run cointegrating relationship between a stock market index and output and interest rates. Moreover, estimation is conducted over the full sample and both a recursive and rolling sample to examine any time variation in the nature of the relationship. The results support evidence of a single cointegrating vector, where stock prices typically exhibit a positive relationship with industrial production and a negative relationship with interest rates. However, there is significant time variation and periods of time where contrary results are observed. As such any model of stock prices needs to account for such time variation