Political institutions and corporate risk-taking: International evidence

Tapping into firm-level accounting data across 90 countries over a 26-year period, we find that sound political institutions are positively associated with corporate risk-taking. This result is economically significant, robust to alternative proxies for corporate risk-taking and political institutions, and continues to hold after mitigating endogeneity concerns of political institutions. We also collect evidence that sound political institutions may compensate for weak legal institutions in inducing corporate risk-taking. We argue that sound political institutions improve the investment environment for firms and can induce higher levels of corporate risk-taking, which is ultimately associated with economic growth.     

欠发达地区农村扶贫开发问题及政策建议

该文针对目前我国农村扶贫政策实施中出现的目标定位不清、政策效果追求片面及基层政府执行偏差等问题进行深入分析,并在此基础上提出了准确定位贫困扶助目标:加快建立生态补偿机制,完善异地搬迁政策;加快公共服务均等化实施;大力推进参与式扶贫等解决措施。     

河北粮食生产核心区建设的总体思路

该文提出河北粮食生产核心区建设的必要性,指出核心区由70个县(市、区),面积超过200万hm2,集中连片,建成后商品粮达到110亿kg。并论述了核心区发展思路、建设重点和落实各项政策,加强组织领导的五项保障措施。     

西江流域两广开发利用的博弈策略及其仿真

针对西江流域开发过程中出现的水源林面积减少、水土流失严重、移民安置、水体污染严重等由经济发展带来的负面生态文明问题,采用演化博弈方法探究西江流域两大治理主体广西政府与广东政府的策略与可能产生的改变与均衡。结果表明,传统情况下两广政府博弈系统将朝着(过度开发,不合理加速)的帕累托最劣稳定状态演化,不利于西江流域生态的绿色可持续发展；引入问责机制对广西政府“过度开发”和广东政府“不合理加速”进行惩罚,博弈系统存在9种演化情景,当且仅当满足特定条件时,系统会收敛到(适度开发,合理加速)的帕累托最优状态；数值仿真模拟下根据惩罚值高低设计9种不同情景,分析惩罚值对博弈结果的影响,发现在中央政府及上级相关部门给予两广政府的问责惩罚都较高时,博弈系统朝着帕累托最优状态演化；为促进西江流域生态经济与治理的均衡发展,在问责机制设计上,要给予两广政府满足相应条件的较高惩罚值。     

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The multibody system transfer matrix method (MSTMM), a novel dynamics approach developed during the past three decades, has several advantages compared to conventional dynamics methods. Some of these advantages include avoiding global dynamics equations with a system inertia matrix, utilizing low-order matrices independent of system degree of freedom, high computational speed, and simplicity of computer implementation. MSTMM has been widely used in computer modeling, simulations, and performance evaluation of approximately 150 different complex mechanical systems. In this paper, the following aspects regarding MSTMM are reviewed: basic theory, algorithms, simulation and design software, and applications. Future research directions and generalization to more applications in various fields of science, technology, and engineering are discussed.     

东部经济发达地区县（市）邮政局发展策略研究

文章对东部经济发达地区县（市）邮政局的发展情况进行深入分析，从机制改革、经营管理、人才队伍建设等方面提出了加快东部经济发达地区县（市）邮政局发展的策略。