分段函数二重积分的计算

利用二重积分的区域可加性,介绍了计算分段函数二重积分的一般方法,并将其运用于几种特殊分段函数二重积分的计算。     

Money,Bitcoin, and Monetary Policy

A search-theoretic model is constructed, where money and Bitcoin can be used as mediums of exchange. We investigate how each currency facilitates transactions and how they compete with each other. Quantitative analysis shows that welfare in an economy with both money and Bitcoin is lower than in a money-only economy due to congestions in the confirmation of Bitcoin transactions and that the welfare gap between the two economies expands as inflation rises. Moreover, an increase in transaction fees for Bitcoin can increase welfare by reducing inefficient Bitcoin transactions.     

大股东治理机制背景的独立董事功用

独立化后的独立董事会削弱大股东治理机制的有效性,其本身也难以发挥监督经理层、保护股东利益的作用,从而可能诱发股东与经理层之间的利益冲突,损害股东整体利益。基于我国上市公司存在双重委托代理问题及投资者法律保护较弱的现实情况,构建具有中国特色的公司治理结构应从两方面着手:政府选择合适的国家终极产权控制方式和合理的代理人行使国有股股权优化大股东治理;制定和切实实行保护小股东的外部强制规则。     

赤霉素破除鸡树条荚蒾种子双休眠特性技术初探

利用赤霉素对鸡树条荚口发芽种子进行处理，发现24小时浸泡可打破鸡树条荚口种子双休眠特性，使其播种后当年出苗。     

预约定价制度适用于我国的成本悖论解析

实行预约定价制度可以较好地解决转让定价滥用和国际双重征税或不征税问题,提高税务部门工作效率。为了调查预约定价制度在我国的可行性,在对预约定价制度实行的基于信息、客体、国际税收合作、转让定价调整方法和事后监控的成本悖论进行具体分析的基础上,得出预约定价制度必须与传统的事后税收监管相结合,才能有效解决转让定价问题的结论。     

Production Efficiency of Jasmine Rice Producers in Northern and North‐eastern Thailand

The paper jointly evaluates the determinants of switching to Jasmine rice and its productivity while allowing for production inefficiency at the level of individual producers. Model diagnostics reveal that serious selection bias exists, justifying use of a sample selection framework in stochastic frontier models. Results from the probit variety selection equation reveal that gross return (mainly powered by significantly higher Jasmine rice price), access to irrigation and education are the important determinants of choosing Jasmine rice. Results from the stochastic production frontier reveal that land, irrigation and fertilisers are the significant determinants of Jasmine rice productivity. Significantly lower productivity in Phitsanulok and Tung Gula Rong Hai provinces demonstrate the influence of biophysical and environmental factors on productivity performance. The mean level of technical efficiency is estimated at 0.63 suggesting that 59% [(100 ? 63)/63] of the productivity is lost due to technical inefficiency. Policy implications include measures to keep Jasmine rice price high, increase access to irrigation and fertiliser availability, as well as investment in education targeted to farm households which will synergistically increase adoption of Jasmine rice as well as farm productivity.     

我国国际收支双顺差态势的路径选择

从当代经济全球化与国际分工深化角度的研究表明,产品内分工、加工贸易的蓬勃发展是我国持续国际收支双顺差及外汇储备激增的根源。持续双顺差的格局可能给我国经济运行带来一些问题。应从以下方面作出政策调整:转变外贸政策;增加政府及公共支出,使国内储蓄顺利转化为国内投资;不断完善外汇储备制度,成立专门外汇投资公司。     

东莞经济社会双转型的理性分析和政策路径

本文介绍了东莞经济社会双转型的主要内容,分析了东莞经济社会双转型的特点,指出了东莞经济社会双转型存在的难点问题,并提出了相应的对策,对于人们了解东莞有一定的帮助。     

单本振二次变频方案浅析

介绍了一种新型的变频方案,采用单本振源即可实现二次变频,还能保留传统二次变频方案的优点,简化了本振源的实现,有利于小型化和集成化.对该新方案进行了理论分析,进而对这种改进二次变频方案提出了采用的频率配置关系和中频滤波器参数设计准则,并结合一个工程实例完成了相关设计.文中所讨论的方案也同样适用于其它频段.     

为谋“双赢” 重在约定

为了实现合作双方双赢的目的,房地产建设单位与物业管理企业之间必须有一个双方共同遵守的合同,以便在工作合作中分清各自的权利与义务,最终实现共赢。