峰荷需求、资本配置效率与中国网络型基础产业投融资机制改革——对阿弗奇-约翰逊模型的一个扩展

阿弗奇—约翰逊模型(A—J模型)表明规制对象具有过度使用资本倾向,相应的实证检验中同时存在肯定和否定的结果,但基本的A—J模型、已有扩展和实证检验都忽略了受规制行业的峰荷需求特征。本文从基本的A—J模型出发,假定生产要素单位使用成本与规制机构所认可的单位核算成本不同,考察了峰荷需求特征下受规制网络型基础产业的投资行为,提供了资本配置效率的衡量标准。本文的基本结论在于,峰荷需求条件下受规制企业不一定投资过多,这也解释了为何A—J效应的实证检验存在相互矛盾的结果。     

Make One——基于软件功能构件的通用电子设备模式研究

首先，指出并分析了基于传统的系统体系结构模式而设计的信息设备与其应用功能之间存在整体堆积性和时空不变性的优缺点；然后，根据先进的信息产品应用功能软件化、构件化的思想，提出一种新的设备与应用功能可互相分离、应用功能构件可重载的Make One设备模式，讨论了Make One模式设备的功能结构特点；进而，给出了一个Make One设备模型的嵌入式容器－构件实现方案；最后，探讨了在互联网环境下Make One模式的应用服务体系。     

China＇s Regional Disparity and Its Policy Responses

The fruits of China＇s rapid economic development over the 3 decades have not been distributed fairly across different regions. Using data from a sample of 815 Chinese listed firrns during 1998-2004, our error-correction investment model showes evidence of different financial constraints on firms＇ investment in different regions. We argue that China＇s regional development policies have contributed greatly to the regional inequalities. To control the rising inequality, China has shifted its focus from the coast to the interior regions. However, it is becoming increasingly difficult for the government to direct the economy, as market mechanisms now have afar greater influence on the economy than the government does. The people-centered approach of the current leadership has meant that substantial attention has been placed on regional development disparities in an attempt to build a ＂harmonious society. ＂ China needs further extensive reforms if all the measures for reducing regional disparity are to be effective.     

产业集群竞争力分析

当前,产业集群现象遍布全国各地,是推动区域经济的一股重要力量,分析各产业集群竞争力,已经成为人们争相考虑的一个问题.本文作者认为,产业集群竞争力是产业集群综合实力的反映,应该从产业集群的经济社会形势、集中度指数以及可持续发展情况等方面来分析.     

中国企业海外并购的特点及成因分析

进入21世纪后，我国企业掀起了海外并购的浪潮，在这次并购浪潮中表现出并购总额持续上升、单宗交易额不断增大、并购行业向多方面扩展、并购主体多元化等新的特点。这次并购浪潮形成的原因主要有：我国经济实力的增长、我国企业对战略性资源的渴求、人民币的持续升值、外汇储备的快速增长、国家政策的转变、全球产业结构的调整等。     

Climate change, irrigation, and Israeli agriculture: Will warming be harmful?

This paper utilizes a Ricardian model to test the relationship between annual net revenues and climate across Israeli farms. The study finds that it is important to include the amount of irrigation water available to each farm in order to measure the response of farms to climate. With irrigation water omitted, the model predicts climate change is strictly beneficial. However, with water included, the model predicts that only modest climate changes are beneficial while drastic climate change in the long run will be harmful. Using the AOGCM Scenarios we show that farm net revenue is expected to increase. Although Israel has a relatively warm climate a mild increase in temperature is beneficial due to the ability to supply international markets with farm product early in the season.     

经济发展的税收效应定量分析

采取面板数据模型分析了经济发展的税收效应,发现经济发展的不同层面对税收的影响不同,表明政府在进行税收改革时要充分考虑经济发展的反作用。结果显示,生活水平提高总体上会降低税率、流转税比重和其他税比重以及提高所得税比重,实际经济增长率增加会提高税率和其他税比重、降低流转税比重和所得税比重,城乡收入差距扩大会降低税率、所得税比重和其他税比重以及提高流转税比重。     

基于SPC的喷漆线产品质量改善

针对汽车配件制造企业喷漆车间中的喷漆线,应用统计过程控制(SPC)技术对影响喷漆线产品质量的因素进行分析,着重对影响喷漆线产品质量的人为因素进行量化,并建立方程进行研究,找出了影响喷漆线产品质量的主要因素,并提出了相应的改进意见。     

关于经济学变革的几个问题探讨

西方主流经济学所赖以服务的社会——资本主义社会的发展已处于“过午”时分，贫富差距不断扩大、自然资源日趋枯竭，日益激烈的社会矛盾逐步转嫁到全球。随着外部条件的变化，传统经济理论的适用“闽值”在不断缩小，然而，它却对我国经济、社会产生了深刻的负面影响，背离了有中国特色社会主义道路的根本。因此，在新的历史条件下，我们应运用科学的眼光重新审视经济学、变革经济学：改写陈旧的市场均衡理论，务实推行必要的计划调节机制，避免人类可能面临的“灭顶”之灾；改换“理性经济人”基石，提升全民的道德水准，回归亚当·斯密“经济人”与“道德人”的完整思想；改革经济调节机制，积极创建“生态经济”的制度规范，实现经济社会的可持续发展。     

Domestic Support and Border Measures for Processed Horticultural Products

In horticultural markets, trade barriers often apply to the processed products whereas domestic support applies to farm-produced raw commodities. Here we assess the effects of such trade barriers and domestic support by simulating the effects of policy reform on global processing tomato markets, which are faced with modest processed product tariffs and high domestic support in the European Union (EU). Both protection and EU subsidy drive down world welfare, but we find that reducing import tariffs for tomato products would yield greater effects on markets and larger welfare impacts outside Europe than would reductions in EU domestic support.