The role of endowments,technology and size in international trade: new evidence from product-level data

Using product-level trade data, we empirically investigate the export patterns of more than 150 countries in their exports to the USA, Brazil, India, and Japan. We document strong evidence that exporters specialize according to their relative factor endowments, technology, and economic size. More developed, capital abundant countries are found to export products of higher unit values and a wider range of products to developed, emerging and developing markets. More developed, economically larger, and technologically advanced countries are also the major exporters of new products, spanning a wide range of product categories with high unit values. Our findings provide important insights into the macro phenomenon that a large proportion of the global trade takes place among developed economies, and that the latter are also major exporters to developing markets.     

一种基于神经网络提取旋波材料参数的新方法

提出了一种从测试的S参数中提取旋波材料参数的新方法——神经网络法。针对旋波材料参数的自由空间测试方法，本文采用BP神经网络来构建映射模型，利用不同算法对网络进行训练，从而获得所需的网络。结果表明，该方法计算速度快、精度高，解决了求解非线性方程组解的模糊性问题，确保了测试结果的可靠性。该方法所构建的网络可用于材料测试后旋波材料参数的快速提取。     

世界证券监管体制比较与中国的模式选择

证券市场是最富魅力的经济领域之一,但在快速发展的同时,也存在着较大的风险,一旦风险得不到有效地控制,很容易引起连锁反应,从而引发全局性的、系统性的金融危机,并殃及整个经济生活,甚至导致经济秩序混乱与政治危机。因此,如何加强监管、控制风险具有重要的理论和现实意义。从证券监管体制这一角度出发,在比较了世界证券监管三种主要体制的基础上,对中国证券监管体制的演变进行了分析。     

东北老工业基地改造中的企业财务总监制度研究

财务总监制,是在企业财产所有权与经营权相分离的情况下,由董事会向企业委派财务总监参与企业的重大经营决策,组织和监控企业日常财务活动的一种经济监督制度,是现代企业制度下加强所有权监督、维护企业资产所有者权益的需要。但是目前在东北老工业基地改造中企业财务总监存在诸多问题,在职责界定、考核、再监督和业绩评价等。因此,应采取相应策略来加以解决。     

基于ZigBee技术的智能家居空气质量优化系统

设计了一种基于Zig Bee无线通信技术的家居空气质量优化系统:在IAR开发环境下,采用TI公司的Z-STACK协议栈,以CC2530芯片为核心构建了一个无线传感网络,采集室内空气温度、湿度、有害气体浓度以及粉尘浓度;采集的数据传输给控制器,控制器对采集的数据进行分析,一旦超过阈值自动控制相应的家电进行工作,低于阈值则停止工作。测试表明:该系统能够在无人控制的情况下保证室内空气始终处于宜居状态。     

Assessing Managers’ Ethical Decision-making: An Objective Measure of Managerial Moral Judgment

Recent allegations of unethical decision-making by leaders in prominent business organizations have jeopardized the world’s confidence in American business. The purpose of this research was to develop a measure of managerial moral judgment that can be used in future research and managerial assessment. The measure was patterned after the Defining Issues Test, a widely used general measure of moral judgment. With content validity as the goal, we aimed to sample the domain of managerial ethical situations by establishing links to dimensions of managerial performance, as well as to the types of organizational justice issues managers encounter. Proposed scenarios were evaluated for realism by ethics officers and human resource managers. Results indicated that the new measure is reliable and correlates with a number of relevant variables in the hypothesized manner, demonstrating evidence of construct validity. Implications for future research and for human resources management are discussed.     

特别清算论——对我国公司法修改中的一点建议

特别清算,是与普通清算相对应的一种清算制度,其在日本公司法及我国台湾地区的公司法中均有规定,克服了普通清算对债权人利益保护不周的弊端,也避免了破产清算的高额花费,较好地兼顾了当事人自治与社会秩序,均衡了效益与公平。我国现行公司法中缺乏对特别清算的相关规定,进而造成了某些公司未经清算即丧失主体地位的情况,极大地损害了社会主义市场经济信用体制的建立,在未来公司法修改中,诚有加以填补的必要     

无限重复古诺模型的均衡分析

古诺模型是一个经典的经济博弈模型,可用来指导经济活动中的重要决策问题。重复博弈对经济效率的提高有重要作用。结合古诺模型与重复博弈理论,以两厂商连续产量的古诺博弈为例,讨论古诺模型的均衡分析,包括无约束古诺模型的均衡分析和有约束古诺模型的均衡分析,并以此为基础讨论无限重复古诺模型的均衡分析,以探索提高厂商合作水平、实现较高效率均衡的途径。