当前我国劳动力市场的典型特征及其原因分析

劳动力转移的长期性与劳动力短缺的长期性是目前我国劳动力市场的典型特征，再加上劳动力短缺造成了劳动力工资面临较大的上涨压力，使得我国劳动力市场的形势异常严峻。文章分析了这些特征背后的原因，并指出了在此基础上我国劳动力市场未来可能会遭遇的问题，提出了相应的对策。     

创建学习型组织中学习力的核心问题研究

通过对《比狼学得快》的故事的阐述,引出学习型组织的基本概念及五项修炼的基本内涵,剖析了现代企业管理中对五项修炼理论的运用,提出了提升企业竞争力的核心是学习力的问题,优势的建立就是要比竞争对手学习得更快。     

Industrial land price between China’s Pearl River Delta and Southeast Asian regions: Competition or Coopetition?

The planned economy system’s previous form of industrial land market control in China has led to current market failure because of a large amount of industrial land being sold at a very low price, causing extensive overuse of land and negative effects on land management. As the “World Factory”, the Pearl River Delta (PRD) is well known for its rapid urbanization largely driven by Foreign Direct Investment in labor-intensive industries. A low-land price strategy has been commonly adopted by the local government in order to attract industrial investment. In the past decade, the PRD has increasingly faced the increasing competition from its neighboring competition from its neighboring countries in Southeast Asia that have established preference policies to attract FDI and foreign enterprises. Despite a growing body of literature on the internal forces of industrial land in China, little is known of the external forces involved except for the importance of FDI and the intensity of interregional competition between China and other countries in attempting to attract foreign investment. This research fills the knowledge gap by modeling the situation in the form of an international cooperative game model aimed at revealing the industrial land price formation mechanism between the PRD region and Southeast Asian regions. The conditions of industrial land in the area and several Southeast Asian countries are first analyzed for their industrial land price movements in recent years. A game theoretic model is then built that exhibits similar characteristics. The result indicates that the governments’ low land price strategy and the competition between the PRD and its neighboring countries have created unnecessarily high social and environmental costs. Policy suggestions are made to encourage a more appropriate use of industrial land in China, and the most important being the need for a mindset shift from competition towards coopetition between the PRD and Southeast Asian regions.     

Socially optimal replacement of conventional with electric vehicles for the US household fleet

In this study, a framework is proposed for minimizing the societal cost of replacing gas-powered household passenger cars with battery electric ones (BEVs). The societal cost consists of operational costs of heterogeneous driving patterns' cars, government investments for charging deployment, and monetized environmental externalities. The optimization framework determines the timeframe needed for conventional vehicles to be replaced with BEVs. It also determines the BEVs driving range during the planning timeframe, as well as the density of public chargers deployed on a linear transportation network over time. We leverage data sets that represent US household driving patterns, as well as the automobile and the energy markets, to apply the model. Results indicate that it takes 8 years for 80% of our conventional vehicle sample to be replaced with electric vehicles, under the base case scenario. The socially optimal all-electric driving range is 204 miles, with chargers placed every 172 miles on a linear corridor. All public chargers should be deployed at the beginning of the planning horizon to achieve greater savings over the years. Sensitivity analysis reveals that the timeframe for the socially optimal conversion of 80% of the sample varies from 6 to 12 years. The optimal decision variables are sensitive to battery pack and vehicle body cost, gasoline cost, the discount rate, and conventional vehicles' fuel economy. Faster conventional vehicle replacement is achieved when the gasoline cost increases, electricity cost decreases, and battery packs become cheaper over the years.     

基于协整理论和前移回归模型的福建省耕地资源变动预测及其驱动机制研究

研究目的:探索改进时间序列预测法与多因素预测法在区域耕地资源变动预测及驱动机制分析方面局限性的途径。研究方法:(1)引入协整理论有关方法对时间序列数据平稳性及协整性进行分析和评估,为驱动机制研究提供思路;(2)探索构建具有"影响滞后"机制的前移回归模型预测方法。研究结果:在对福建省的实证分析案例中,上述方法运用效果较好,模型输出的预测数据及所作的驱动机制分析可为该省今后的种植业生产规划、农业土地规划与决策提供参考。研究结论:协整理论与前移回归方法的有机结合,可为区域耕地资源变动预测及驱动机制研究提供一种有效的工具。     

我国农村劳动力＂反梯度＂流动的经济学分析——以新疆采棉工为例

农村劳动力“反梯度”流动是我国经济和社会转型期间出现的一种特殊现象。从流向看，它有悖于劳动力由乡一城、由落后地区一发达地区流动的规律。文章采用经济学分析方法，以新疆采棉工为研究对象，从理论和现实两个层面研究分析采棉工理性的流动决策行为以及基本特征和相关影响因素。     

Dilemmas of Social Reform (Poverty and Community Action in the United States)

During the last thirty years, one of the most remarkable trends in Western Europe and North America has been the increase in women’s labor force participation rates. However, there has been considerable variation among countries; rates in Southern European countries are markedly lower than in other regions. Standard welfare state regime typology is unable to explain this outcome. This paper tackles the issue by examining the institutional determinants of employment decisions in Spain. Family policies and tax policies greatly influence the labor force participation of women by either promoting or discouraging the employment of mothers. However, these policies do not affect women in the same way. Of particular importance is whether women can claim benefits on the basis of their citizenship, or whether their status as wives or mothers is the link to benefits. By pursuing this line of analysis, the paper explains the low female labor force participation in Spain, providing an important contribution to the welfare state regime literature.     

UV油墨及应用技术

UV技术在诸多领域有着广泛应用，UV油墨具有固化速度快、印刷质量高、无VOC排放等优点，作为一种环保型油墨，在各种印刷方式中的应用越来越受到重视。本文阐述了UV油墨体系的主要成分——预聚物、单体等的结构特点及UV固化机理；结合UV油墨技术发展趋势，探讨了UV喷墨油墨分散性及其评价方法、流变学特征；根据实验研究结果，从反应动力学的角度论述了UV油墨的固化速度及氧对聚合反应的影响规律；考察了UV胶印油墨的转移率及其在低能表面承印材料的附着力。     

Forces exerted by jumping children: a pilot study

Abstract

This article reports on a pilot study of the loads exerted vertically by children when jumping. The subjects of the study were 17 children, aged from two to twelve years. Measurements were made using video recordings and a force-plate. The influence of the stiffness of the base and of jumping with and without shoes was investigated. Knee flexion, push-off force (thrust) and the ratio between push-off force and body weight (relative thrust) were analyzed. Measurements of the knee flexion showed a certain consistency for each child. The angle of knee flexion during push-off follows a bimodal distribution with maxima at 60^° and 90^°. The results for relative thrust suggest a close relationship between push-off force and body weight.     

Seat-belt use still low in Kuwait: self-reported driving behaviours among adult drivers

Kuwait mandated seat-belt use by drivers in 1976 and by front seat passengers in 1994. The study objectives were to identify and estimate current factors associated with seat-belt use and levels of potentially unsafe driving behaviours in Kuwait. In 2010, 741 adults were surveyed regarding driving habits and history. Only 41.6% of drivers reported always using a seat belt. Front seat passenger belt use was more common (30.5%) than rear seat belt use (6.5%). Distracted driving behaviours were common, including mobile phone use (‘always’ or ‘almost always’: 51.1%) and texting/SMS (32.4%). Logistic regression indicated that drivers who were young (18–19 years), male, Kuwaiti nationals or non-Kuwaiti Arabs, drove over the speed limit, had traffic violation tickets or >1 car crashes in the last year, were less likely to use seat belts. Targeted initiatives to increase public awareness and to enforce car-safety legislation, including use of seat belts, are necessary to decrease the health burden of car crashes in Kuwait.