中小企业资产证券化问题研究

中小企业是市场经济的重要组成部分,是经济发展的最重要的驱动力量。本文分析了由于我国目前中小企业发展过程中存在融资难的问题而需要资产证券化的必要性,认为可以通过创造良好的外部环境和整合优化中小企业自身内部资源,进行资产证券化。     

我国资产证券化结构中SPV的法律构建问题

文章回顾了我国资产证券化发展不足的历史及原因,分析了我国资产证券化结构中SPV构建的法律问题,即现行的《公司法》、《合同法》、《担保法》等与SPV的构建都存在障碍。提出我国资产证券化结构中SPV的模式选择：第一,利用国有公司的公信力,发挥社会主义的优越性,以四大资产管理公司承担公司型SPV的职能。第二,依据现行《信托法》,以信托机制构建SPV的模式进行资产证券化。建议在借鉴国外经验的基础上,以保护投资者利益为原则制订我国的《资产证券化法》,推动资产证券化全面发展。     

车辆管理系统在气象技术装备保障中的应用

通过在气象技术装备保障中实践使用普瑞车辆管理系统，总结该系统管理的优点和不足及其在气象技术装备保障工作中所发挥的积极性作用。     

单车场大规模车辆路径优化问题研究

针对传统优化技术在解决大规模车辆路径问题中存在的缺陷,提出了一种解决单车场大规模车辆路径优化问题的综合启发式算法。首先,采用Sweep技术将区域分解成几个子区。其次,设计了分区的禁忌搜索算法,并采用相邻区域综合优化技术,提高了算法的全局搜索能力。仿真试验表明,该算法能够有效解决大规模车辆路径优化问题。     

中国的贸易基础支持人民币区域化吗?

贸易发展是一国货币国际化的决定性推动力量。推动人民币在国际贸易,特别是与周边国家一般贸易中的普遍使用,是人民币区域化的突破口和重中之重。在介绍国际贸易媒介货币选择研究成果的基础上,本文结合中国对外贸易的现状,从产品差异程度、对外贸易竞争力、对外贸易区域结构和对外贸易全球份额等方面检验了我国现阶段的贸易基础是否支持人民币区域化这一命题。研究发现,当前推行人民币区域化具有一定的贸易基础,但也存在着一些不利因素,需要统筹规划,合理确定人民币区域化的方向、重点和节奏。     

自动引导车路径追踪控制器控制效果的MATLAB仿真

介绍了以MATLAB6.5为平台,对不同起始误差条件下自动引导车(AGV)的路径追踪控制器的控制效果仿真。仿真结果证明经过一段时间由路径追踪控制器的速度和角速度的补偿可以消除3个追踪误差量,使自动引导车具有准确跟随路径的能力。     

Vehicle currency use in international trade

We explore the major driving forces for currency invoicing in international trade with a simple model and a novel dataset covering 24 countries. We contrasts a “coalescing” effect, where exporters minimize the movements of their prices relative to their competitors', with incentives to hedge macroeconomic volatility and transaction costs. The key determinants of invoice currency choice are industry features and country size, with some role for foreign-exchange bid-ask spreads. The coalescing effect also goes a long way to explaining the well-known dominance of the dollar. Trade flows to the United States are predominantly invoiced in dollar, as foreign exporters face competition with U.S. firms. The use of the dollar in trade flows that do not involve the United States reflects trade in homogeneous products where firms need to keep their price in line with their competitors'.     

Model and algorithm for an unpaired pickup and delivery vehicle routing problem with split loads

This paper addresses the routing problem with unpaired pickup and delivery with split loads. An interesting factor of our problem is that the quantity and place for pickup and delivery are decision variables in the network. We develop an easy-to-implement heuristic in order to gain an efficient and feasible solution quickly. Then, a local search algorithm based on the variable neighborhood search (VNS) method is developed to improve the performance of the heuristic. Computational results show that the proposed VNS method is able to obtain an optimal or near optimal solution in reasonable time for the formulated problem.     

A dynamic hazard-based system of equations of vehicle ownership with endogenous long-term decision factors incorporating group decision making

The transportation system affects all aspects of our daily lives including relatively long-term decisions on work and home location choice and automobile ownership decisions. The interdependency existing among these three decisions jointly influences household mobility and overall travel patterns. Therefore, a dynamic modeling framework that can account for the effects of interdependencies between vehicle transaction behavior and residential and job location choices is highly desirable. These decisions are made in the household level while individuals’ decisions influence the overall outcome; therefore, it is also important to incorporate a group decision making process within such modeling frameworks.This study introduces a dynamic model for vehicle ownership, residential mobility, and employment relocation timing decisions. These decisions are modeled at the individual level and then sequentially aggregated to the household level if it is required. A hazard-based system of equations is formulated and applied in which work location and residential location changes are included as endogenous variables in the vehicle transaction model while other important factors such as land-use and built environment variables, household dynamics, and individuals’ socio-demographics are also considered.     

基于现有技术条件下我国电动汽车商业化之路

目前我国电动汽车的发展进入了瓶颈阶段,即无法实现商业化。制约电动汽车商业化的障碍主要有:电池充电时间长,效率低;整车价格贵、汽车整体运行成本高;缺乏足够的充换电网络和专业的维修网点。在现有技术条件下解决电动汽车商业化的有效途径是采取换电模式,其优点为:没有技术障碍问题、换电站投资成本低、缩短车辆的等待时间、提高电池的使用寿命、降低电池的使用成本。目前应由国家制定统一的电池标准和充电设备等标准,并依托中石油、中石化、南方电网等央企来构建充换电网络。