Overconfidence and tax avoidance: The role of CEO and CFO interaction

We investigate how overconfident CEOs and CFOs may interact to influence firms’ tax avoidance. We adopt an equity measure to capture overconfident CEOs and CFOs and utilize multiple measures to identify companies’ tax-avoidance activities. We document that CFOs, as CEOs’ business partners, play an important role in facilitating and executing overconfident CEOs’ decisions in regard to tax avoidance. Specifically, we find that companies are more likely to engage in tax-avoidance activities when they have both overconfident CEOs and overconfident CFOs, compared with companies that have other combinations of CEO/CFO overconfidence (e.g., an overconfident CEO with a non-overconfident CFO), which is consistent with the False Consensus Effect Theory. Our study helps investors, regulators, and policymakers understand companies’ decision-making processes with regard to tax avoidance.     

股价信息含量与投资-股价敏感性——基于融资融券的准自然实验

本文利用2006-2015年间的数据研究了融资融券对投资-股价敏感性的影响。利用融资融券作为股价信息含量的一个外生冲击变量,本文研究发现,我国A股市场确实存在反馈效应,融资融券政策的实施增强了标的公司投资-股价敏感性,这个结论在采用倾向得分模型(PSM)配对后依然成立,说明融资融券使股价融入了更多有利于管理层投资决策的信息。其次,融资融券对投资-股价敏感性的影响在机构投资者比例高、流动性高、处于新兴行业的这类管理层反馈效应更强的股票组中更显著。参照以往研究考虑了融资约束对反馈效应的调节作用,同样发现融资融券对投资-股价敏感性的影响在国有企业和规模较大的企业组中更显著。最后,融资融券交易规模越大,投资对股价的敏感性越强。     

Maximum efforts in contests with asymmetric valuations

Efforts may be reduced when players with different valuations participate in a contest. This paper considers the problem of designing a contest to elicit maximum aggregate effort from players with asymmetric valuations. Optimal designs for different classes of contest technologies are computed and characterized. A value weighted contest is optimal in the concave case. In the unconstrained case, the optimal contest is equivalent to a first price all-pay auction with a reserve price. The optimal design discounts the effort of the high valuation player in order to induce him to compete vigorously.     

金融组织强制性信息披露问题研究

由于规模经济的原因,作为信息劣势方——投资者公共利益代表者的政府必然成为强制性信忠披露的主体。政府按照参与约束原则和激励相容原则进行机制设计甄别金融组织,引导其确定合理的信忠披露边界,形成分离均衡,金融市场上的非对称信息转变为对称信息。但政府强制金融组织进行信息披露时,应尊重其利益追求和考虑金融市场发育程度等。     

Dynamic and asymmetric impacts of macroeconomic fundamentals on an integrated stock market

A large body of evidence indicates that macroeconomic and financial variables are dynamically interrelated. In an international setup, we analyze the transmission mechanisms of macroeconomic shocks on the stock market of a small open economy in an increasingly integrated world. We use a time-varying vector error correction model (VECM) that allows analysis of asymmetric impacts that depend on the state of the business cycle. A special focus is directed on monetary policy surprises, where we find that foreign shocks exert a strong influence on an integrated stock market, and that the stage of the business cycle heavily affects the signals of the shocks.     

Asymmetric volatility in the foreign exchange markets

We examine the presence or absence of asymmetric volatility in the exchange rates of Australian dollar (AUD), Euro (EUR), British pound (GBP) and Japanese yen (JPY), all against US dollar. Our investigation is based on a variant of the heterogeneous autoregressive realized volatility model, using daily realized variance and return series from 1996 to 2004. We find that a depreciation against USD leads to significantly greater volatility than an appreciation for AUD and GBP, whereas the opposite is true for JPY. Relative to volatility on days following a positive one-standard-deviation return, volatility on days following a negative one-standard-deviation return is higher by 6.6% for AUD, 6.1% for GBP, and 21.2% for JPY. The realized volatility of EUR appears to be symmetric. These results are robust to the removal of jump component from realized volatility and the sub-samplings defined by structural-changes. The asymmetry in AUD, GBP and JPY appears to be embedded in the continuous component of realized volatility rather than the jump component.     

具有网络效应的产品的价格竞争分析

具有网络效应的产品是指消费者在消费这种产品时所获得的效用会随着购买这种产品的其他消费者数量的增加而不断增加的产品。本文通过建立一个有两个厂商的离散动态决策模型，研究在分散决策的市场经济中生产具有网络效应的产品的厂商的价格决策对产品市场占有率的影响，价格决策影响产品市场占有率的动态演化的过程，以及市场均衡的务件和特征，包括产品不占有市场、占有部分市场以及上有今都市场的价格条件。     

反垄断法域外适用依据分析

反垄断法的域外适用包括多种情形,其依据也各不相同.其中由美国首先在司法中确立的“效果原则”对该类适用问题产生了重要影响,一方面对于保护本国的市场环境,效果原则确实具有积极的作用,但其引发的国家间主权和经济利益的冲突也使得该原则的适用受到了限制.对此,各国都采取了很多变通措施,并通过国际合作来缓解这些冲突,这对于我国的相关立法也具有启示作用.     

风险投资股份转让的博弈分析

本文讨论风险投资股份转让的两种方式的比选问题,基于信息的不对称程度,可实现的交易范围相应变小,而随着风险企业控制方的不同,不同的转让方武是最优的.     

边疆民族地区经济增长与就业关系比较研究

通过建立GDP就业模型揭示经济增长与就业的内在关系。要增加就业降低失业率，必须保持快速和稳定的经济增长和提高GDP就业弹性。比较分析边疆少数民族地区和东部发达地区的GDP就业弹性，发现由于东部发达地区经济更依赖于资本和技术进步，其GDP就业弹性、GDP对就业的“指数效应”比边疆少数民族地区的小。同时随着边疆少数民族地区经济的资本有机构成逐渐提高和进一步的资本深化，GDP就业弹性也在逐渐下降。东部发达地区GDP对就业的“乘数效应”比边疆民族地区的大，说明了东部发达地区依然是吸收就业和农村剩余劳动力的主要地区，并提出增加就业的对策建议。