积极应对成品油价格形成机制改革确保出租汽车行业健康稳定发展

对成品油价格形成机制改革，确保出租汽车行业的稳定发展进行了阐述。     

我国近代贸易战略的转变

对外贸易是我国经济中的重要组成部分,对我国改革开放以来经济的发展起了极大的推动作用。本文考察近现代以来我国贸易总政策的转变即对外开放以来对外贸易战略的转变。     

Overview of missing physical commodity trade data and its imputation using data augmentation

The physical aspects of commodity trade are becoming increasingly important on a global scale for transportation planning, demand management for transportation facilities and services, energy use, and environmental concerns. Such aspects (for example, weight and volume) of commodities are vital for logistics industry to allow for medium-to-long term planning at the strategic level and identify commodity flow trends. However, incomplete physical commodity trade databases impede proper analysis of trade flow between various countries. The missing physical values could be due to many reasons such as, (1) non-compliance of reporter countries with the prescribed regulations by World Customs Organization (WCO) (2) confidentiality issues, (3) delays in processing of data, or (4) erroneous reporting. The traditional missing data imputation methods, such as the substitution by mean, substitution by linear interpolation/extrapolation using adjacent points, the substitution by regression, and the substitution by stochastic regression, have been proposed in the context of estimating physical aspects of commodity trade data. However, a major demerit of these single imputation methods is their failure to incorporate uncertainty associated with missing data. The use of computationally complex stochastic methods to improve the accuracy of imputed data has recently become possible with the advancement of computer technology. Therefore, this study proposes a sophisticated data augmentation algorithm in order to impute missing physical commodity trade data. The key advantage of the proposed approach lies in the fact that instead of using a point estimate as the imputed value, it simulates a distribution of missing data through multiple imputations to reflect uncertainty and to maintain variability in the data. This approach also provides the flexibility to include fundamental distributional property of the variables, such as physical quantity, monetary value, price elasticity of demand, price variation, and product differentiation, and their correlations to generate reasonable average estimates of statistical inferences. An overview and limitations of most commonly used data imputation approaches is presented, followed by the theoretical basis and imputation procedure of the proposed approach. Lastly, a case study is presented to demonstrate the merits of the proposed approach in comparison to traditional imputation methods.     

关于赴日本参加2015年国际野生动物管理学大会的报告

为了跟踪国际道路生态学最新发展趋势,了解东亚邻国在道路生态学领域的最新进展,交 通运输部科学研究院派团出席在日本北海道举行的2015 年国际野生动物管理学大会“道路生态学 分论坛”和“道路生态学圆桌会议”。期间,交通运输部科学研究院代表团与加拿大、德国、韩 国、日本、新加坡、中国台湾等国家和地区的道路生态学家们进行了广泛而深入的交流,并展示 了交通运输部科学研究院在长白山区道路野生动物保护领域取得的成果。会后,与会人员共同考 察了日本北海道道路野生动物保护示范工程,包括Doto 高速公路、Obihiro-Hiroo 高速公路、国道 235 和国道236。通过本次出访,我们认为：道路野生动物保护已经成为道路生态学研究的重要内 容,在东亚地区受到了广泛重视,但整体仍存在诸多不足,我国有望在道路生态学的发展方面做 出决定性贡献。     

策克铁路口岸信息平台建设

策克铁路口岸建成之后,进出口作业量大幅提高。信息平台的建设有利于提高通关速度,保证进出口贸易的顺畅。从建设策克铁路口岸信息平台的需求、功能、结构等方面进行分析,确定信息平台的总体规划布局,并指明其对策克铁路口岸进出口作业的意义。     

电子商务对国际贸易的影响

本文从以下几个方面对电子商务对国际贸易的影响进行了讨论:电子商务使国际贸易运行方式和环境发生重大变化,电子商务使国际贸易经营主体的战略发生重大变化,电子商务使国际贸易经营管理方式发生重大变革,电子商务促进世界技术贸易的发展,提出了电子商务必将创造巨大的效益和机会。     

驰名商标的互联网域名保护

从驰名商标的特殊保护作为切入点,提出驰名商标在互联网域名注册上也应当享受特殊保护,同时也应接受必要限制。     

技术壁垒视阈下南通外贸发展策略研究

文章在分析欧美技术贸易壁垒的基础上,认为欧美基于环境保护和产品质量标准的技术贸易壁垒的不断增强,恶化了南通外贸发展的外部环境,并提出了解决南通外贸发展在应对欧美技术贸易壁垒方面存在诸多缺陷的应对措施,以推动南通外贸持续快速健康发展。     

我国运输服务业国际竞争力现状分析

通过对我国运输服务业的贸易现状,市场占有率、显性比较优势指数、贸易竞争力,以及法律环境、硬件设施等方面来综合测度和分析我国运输服务业的国际竞争力,得出其法律环境、硬件设施不断完善,但总体国际竞争力低下的重要结论.     

非公企业职业化工会主席的治理逻辑:一种基于委托代理理论的分析

由上级工会向非公企业直派的职业化工会主席与上级工会之间的关系具有委托——代理性质。以委托——代理模型为基础,建立作为代理人的职业化工会主席在为职工维权过程中的收益矩阵,能更清楚地分析作为代理人的职业化工会主席的策略选择,进而为完善仍处于试点中的非公企业工会主席职业化的治理提供相应的建议。