Search practices in the early phase of the innovation process and ambidexterity: testing a sample of high-tech companies

This paper investigates the relationship between the practices put in place by firms to search for local and distant knowledge, ambidexterity and firms’ performances; attention is then focused on analysing the antecedents and consequences of ambidexterity in the search phase of the innovation process. Structural equation modelling has been used in order to test these hypotheses in a sample of Italian high-tech companies. Results of the study show a positive impact of the practices used by firm to search for distant knowledge on both ambidexterity and firms’ performances as well. Implications of these results are discussed in the paper.     

Employee firing costs and auditors’ going-concern opinions: Evidence from wrongful discharge laws

This paper examines the impact of employee firing costs on auditors’ going-concern (GC) reporting decisions by exploiting the wrongful discharge laws (WDLs) adopted by U.S. states. We find that auditors are more likely to issue GC opinions to financially-distressed clients headquartered in states that have adopted the laws, in particular the good faith exception, than to clients in states that have not. This finding is robust to controlling for the state-level economics, the strictness of legal liability rules, audit office fixed effects, as well as alternative definitions of financial distress and estimation methods. The impact is concentrated in labor-intensive clients and clients in industries with a higher proportion of nonunionized or permanent employees. We further find that the increased propensity to issue GC opinions is attenuated when the auditor is economically dependent on the client, and is driven by auditors who possess labor-specific expertise. Overall, these findings are consistent with higher firing costs increasing auditors’ propensity to issue GC opinions.     

中国的信用评级真的影响发债成本吗?

信用评级制度旨在通过提供真实可靠的公共信息而改善市场效率,但在发行人付费模式和评级选购机制下,信用评级机构的公信力有待检验。由此,本文基于中国债券数据研究了信用评级对企业发债成本的影响。与既有文献一样,OLS分析表明良好的信用评级显著降低了债务融资成本,但考虑到内生性问题,此结果的可信性值得怀疑。基于理论分析和计量判据,我们以各地区评级机构的竞争程度作为债券评级的工具变量重新进行了回归,发现信用评级对发债成本的经济效应明显降低,且该效应在统计上也不再显著。这表明,中国的信用评级机构并没有获得市场认可的公信力,而评级膨胀也不会真正降低企业的发债成本。     

Charity registration and reporting: a cross-jurisdictional and theoretical analysis of regulatory impact

Governments increasingly regulate charities to restrict the number of organizations claiming taxation exemptions, reduce charities’ ability to abuse state support, and detect and deter fraud. Public interest theory arguments suggest that regulation could increase philanthropy through enhancing public trust and confidence in charities. Nevertheless, public choice theory argues that regulators seek to maximize political returns, ‘manage’ charity-government relationships, and reduce potential regulatory capture.

We analyse charity regulatory regimes using these two regulatory theories and the relative costs and benefits of different regulatory regimes. Heeding these should reduce regulatory inefficiency and balance accountability and transparency demands against benefits charities receive from regulation.     

公司内部治理机制与企业竞争力研究——“代理成本”的分析视角

竞争力是企业生存和发展的关键,创业板上市公司作为我国多层次资本市场的重要组成部分,其竞争力能否持续发展关系到我国资本市场能否健康发展.本文以我国创业板上市公司为研究样本,基于“代理成本”分析视角,构建公司内部治理各变量与公司竞争力的多元线性回归模型,对中国创业板上市公司的内部治理与公司竞争力进行实证分析,并在实证研究的基础上对如何完善我国创业板上市公司内部治理、提升公司竞争力提出了政策建议.     

元搜索引擎研究

该文对元搜索引擎进行了界定,阐述元搜索引擎的特征、分类及其运作原理,研究了元搜索引擎几项关键技术,并讨论了它的未来发展方向。     

中国资本市场的中长期动量效应和反转效应——基于Fama和French三因素模型的进一步研究

基于国内外学者对于中国股票市场的动量效应和反转效应的研究,利用1994~2004年中国股票市场的经验数据,借助于Fama和French的三因素模型,对中国股市的动量和反转效应进行解释。研究结果表明,Fama和French三因素模型的解释力度不大。     

经济学视角下的企业信用管理

企业信用管理可以从经济学理论得到解释,可以从交易费用、信息不对称、产权、外部性等经济学视角寻找加强企业信用管理的理论依据。     

Learning and Efficiency with Search Frictions

This paper studies the allocative efficiency in a Moscarini (2005)-type equilibrium search environment with learning. It is shown that the stationary equilibrium is efficient if and only if the Hosios condition holds no matter whether learning is about firm-specific human capital or about general human capital. However, the stationary equilibrium can never be efficient if externalities exist from unemployment. In contrast, even with externalities, the stationary equilibrium can be efficient under some modified Hosios condition if there is no uncertainty (standard Mortensen and Pissarides (1994)-type equilibrium search environment). The key intuition is that the equilibrium can only be efficient if firm-worker matching is formed and terminated efficiently.