基于效率视角的上市公司股权激励工具选择研究

本文运用2011-2016年发布股权激励计划的我国A股上市公司数据,从激励效率的角度,探讨公司规模、成长性及产权性质等异质性要素如何影响公司股权激励工具的选择。研究发现,公司规模能够显著影响股权激励工具的效率,大型上市公司更适合使用股票期权,而小型上市公司更适合使用限制性股票;且公司成长性越高,上述匹配关系对股权激励效率的影响越显著。对于国有上市公司,选择股票期权作为股权激励工具比限制性股票更具有激励效率。     

The efficiency of mutual fund companies: Evidence from an innovative network SBM approach

This paper is the first DEA (Data Envelopment Analysis) evaluation of the efficiency of a sample of mutual fund companies in a large Euro fund industry, i.e. Spain. Our novel network model links the efficiency of the core activities (portfolio management and marketing/distribution) of a mutual fund company to the efficiency of its operational management function. Our results highlight the important networking effects at the marketing stage and question the prime role of portfolio management skills in the overall efficiency of a mutual fund company. The evaluation of robust efficiency clusters indicates that the efficiency rankings obtained with our network model persist significantly along our sample period. Finally, the application of the SBM (Slacks-Based Measure) Variation III to our network model allows us to identify a large number of globally inefficient but locally efficient companies with reference to competitors with similar management resources.     

指令驱动市场中非知情交易者的最优交易策略

在非对称信息下,综合非知情交易者对资产价值的预期、私人估值及资产价值波动,构造指令驱动市场价格形成的动态模型,给出非知情交易者指令提交策略的解析解,并依此描述了非知情交易者对资产价值预期的动态更新过程.研究发现:私人估值和资产价值波动通过影响非知情交易者最优策略,使得市场进入不同均衡状态;在每个均衡状态下,非知情交易者根据资产价值的预期变化更新交易策略,进而引起知情交易者策略调整,特别地,使得知情交易者被挤出市场成为可能.进一步分析表明,私人估值、资产价值波动及知情交易者比例对市场流动性的影响依赖于每个均衡中限价指令执行风险的差异.     

First‐Price Auctions With General Information Structures: Implications for Bidding and Revenue

We explore the impact of private information in sealed‐bid first‐price auctions. For a given symmetric and arbitrarily correlated prior distribution over values, we characterize the lowest winning‐bid distribution that can arise across all information structures and equilibria. The information and equilibrium attaining this minimum leave bidders indifferent between their equilibrium bids and all higher bids. Our results provide lower bounds for bids and revenue with asymmetric distributions over values. We also report further characterizations of revenue and bidder surplus including upper bounds on revenue. Our work has implications for the identification of value distributions from data on winning bids and for the informationally robust comparison of alternative auction mechanisms.     

Zero Expected Wealth Taxes: A Mirrlees Approach to Dynamic Optimal Taxation

In this paper, I consider a dynamic economy in which a government needs to finance a stochastic process of purchases. The agents in the economy are privately informed about their skills, which evolve stochastically over time; I impose no restriction on the stochastic evolution of skills. I construct a tax system that implements a symmetric constrained Pareto optimal allocation. The tax system is constrained to be linear in an agent's wealth, but can be arbitrarily nonlinear in his current and past labor incomes. I find that wealth taxes in a given period depend on the individual's labor income in that period and previous ones. However, in any period, the expectation of an agent's wealth tax rate in the following period is zero. As well, the government never collects any net revenue from wealth taxes.     

国际私法当今发展的动向

本文认为,国际私法当今发展的动向是：１．内容范围不断扩大,新学说不断涌现;２．法律关系分割化,连结因素弹性化;３．重视实体法解决的方法,重视政策定向、结果选择的运用;４．“意思自治”限制加强,契约履行地特定具体;５．住所地法代替本国法,法院地法优先适用;６．反致态度发生改变,第三世界登上国际私法舞台;７．国内立法法典化,国际立法多样化     

煤炭上市公司资本结构与公司成长性研究

文章以沪深两市2015-2018年的煤炭上市企业数据为研究样本,研究煤炭企业资本结构和成长性之间的关系,采用因子分析法和线性回归的方法,从盈利能力,短期偿债能力,资产营运水平,发展能力四个方面反映企业成长性,最终得出盈利能力,短期偿债能力和资产营运水平和企业成长性之间存在着负相关的关系,这对促进煤炭企业构建合理资本结构,降低企业财务风险,保证企业经营目标有着实际意义。     

影响上市公司董事会构成的因素分析——基于中国民营上市公司的实证分析

董事会作为公司治理的一种基本制度安排,其构成并不是外生给定的,而是受到公司特征、行业环境、制度背景等诸多因素的影响。故结合中国新兴加转轨的特殊经济背景,利用2004—2008年间196家中国上市公司的平衡面板数据检验了公司经营复杂性、监督成本、私人收益、CEO影响力、股权结构、制度环境六个因素对中国公司董事会构成的影响。研究发现：公司经营复杂性、监督成本、私人收益、CEO影响力四个因素对中国民营上市公司董事会构成的影响同国外已有结论存在很大差异;股权结构和制度环境是影响中国民营上市公司董事会构成的重要因素。     

论经营者激励机制与企业技术创新

研究经营者激励机制对企业技术创新的影响是现代企业管理的重要内容。以中国2004—2007年372家上市公司的数据为样本,探讨经营者激励机制与技术创新之间的关系并对其进行了实证研究。研究发现：由于国有企业的所有权和经营权的分离程度较高,技术创新代理行为的影响要甚于民营企业,因此经营者持股极少,较高的技术创新动力只能来自于边际激励效应。通过采用White—Heteroskedasticity方法对模型进行异方差检验,结果表明：经营者拥有剩余索取权有利于企业的技术创新;国有企业经营者拥有剩余索取权对企业技术创新的影响程度要高于民营企业。     

石油企业自主创新联盟的影响因素分析

资源及能力的有限性使得企业在自主创新过程中将面临巨大的风险,而自主创新联盟有助于企业通过知识、技术等资源的互补实现关键技术的突破,以达到共赢。故以石油企业为例,在定性分析的基础上,提出影响石油企业自主创新联盟的主要因素,通过因子分析及信度检验,认为利益、风险、伙伴关系、行业环境及潜在能力是影响石油企业自主创新联盟的主要因素。