管理层持股、自由现金流与企业过度投资行为研究

在现代企业制度下,通过管理层持股将股东与管理层之间的堑壕效应转化为利益协同效应,能有效减少管理层的过度投资行为。通过实证研究发现,管理层持股与企业过度投资—自由现金流存在二次曲线关系,过度投资对自由现金流的敏感性与管理层持股呈正U型关系。当管理层持股达到一定比例时,企业过度投资对自由现金流敏感度最低,对企业抑制过度投资的作用最大。     

龙头企业知识溢出及集群竞争力的提升效应

产业集群已经成为区域经济发展的动力,知识溢出又是集群持续创新的最主要条件。文章主要研究了集群内龙头企业知识溢出的实现方式,并分析了知识溢出与竞争优势的两难困境,认为龙头企业可以通过集群竞争力的提升效应来克服个体在知识溢出时所造成的负效应。     

基于灰灾变预测的“牛鞭效应”解决办法

简要介绍了灾变灰预测理论,并将此理论用于零售终端企业的库存控制,通过零售商的合理库存预测来减轻牛鞭效应的影响。之后给出实际案例进行了相关的研究和分析,证明灾变灰预测是减轻牛鞭效应的很好思路。     

上市公司转投资与资本结构关系实证研究

企业转投资与资本结构关系涉及到代理成本效应、共担保效应与内部融资市场效应。本文采用1998年至2002年沪深两市的上市公司的数据进行了实证研究,结果表明：企业的转投资与资本结构呈现显著地负相关关系,说明转投资的代理成本效应与内部融资市场效应明显。     

现代企业成本控制机制研究

传统意义上的成本控制方法体系构建于"收入-费用=利润"的数量关系之上,不惜一切代价绝对地削减成本以保持一定的利润水平是其最显著特征。现代企业成本控制突破了企业这种价值观,而是将利润观念与成本控制语境演进进行对称研究,并进而建立了现代企业成本控制机制整体框架。在具体操作上,成本核算、成本控制与成本分析三位一体的实现是企业生产方式再造、成本流程设计与最佳成本控制方式选择的整体性制度安排。最后提出企业制度效应决定了成本控制方法体系的选择,任何期望不改变企业组织现存状态的成本控制都有必要进一步改进。     

论两种规模经济：专业规模经济和综合规模经济

当前国际上出现了一种“企业规模无关论”的新观点,与我国目前盛行的“唯规模经济论”截然相反。笔者以为,上述两论都失之片面,正确的理论是在承认的前提下,将规模经济分为两类:专业规模经济和综合规模经济。前者因专业化分工效应而扩大产销规模与市场份额;后者因企业(集团)内部协调成本小于市场交易成本而获得效应。随着市场发育和市场交易成本下降,拥有专业规模经济的企业集团,比之拥有综合规模经济的企业集团更能适应市场的变化与竞争。     

上海市区街道办事处功能作用调整、完善的对策与措施

本文经调查研究,从上海市区街道办事处功能作用存在的问题出发,重新定义其功能与基本职能,提出了上海街道办事处功能作用调整对策与措施。     

物流活动效率化探索

着重分析了供应链物流体系如何能够降低无效的物流活动，从而实现物流活动有效的效率化以及建构供应链物流体系的要素。     

Spillovers between sovereign CDS and exchange rate markets: The role of market fear

As important variables in financial market, sovereign credit default swaps (CDS) and exchange rate have correlations and spillovers. And the volatility spillovers between the two markets become further complicated with the effect of market fear caused by extreme events such as global pandemic. This paper attempts to explore the complex interactions within the “sovereign CDS-exchange rate” system by adopting the forecast error variance decomposition method. The results show that there is a relatively close linkage between the two markets and the total spillover index of the system is dynamic. For most of the past, the exchange rate has a higher spillover effect on the sovereign CDS than vice versa. Moreover, after the market fear variables are introduced, the “sovereign CDS-exchange rate” system and market fear variables present bidirectional spillovers. The results of the study have particular significance for maintaining the financial stability and preventing risk contagion between markets.     

Dynamic time series momentum of cryptocurrencies

This paper examines the momentum effect for twenty cryptocurrencies compared to the US stock market. For this purpose, we implement a dynamic modeling approach to define and test momentum periods that follow a formation period for interday and various intraday price levels. We find evidence that large proportions of the asset classes’ formation periods are followed by momentum periods, strongly supporting the momentum effect. In particular cryptocurrencies have significantly larger and longer momentum periods in all frequencies which we attribute to the lower derivability of their intrinsic value leading to a higher degree of noise traders in the market. A momentum trading strategy based on the identical approach outperforms a buy-hold strategy for both asset classes, while only cryptocurrencies have higher risk-adjusted returns and lower downside risks than a passive investment. We also find critical price levels during structural elements of the momentum period where the volatility shortly but intensively increases and consequently initiates a price impulse in the direction of the momentum.