The knowledge management strategy and the formation of innovative networks in emerging industries

This paper presents an agent-based simulation model with local network externality to analyze strategic interactions over investment on new economic knowledge. R&D knowledge flows and spillovers are the results of non-cooperative games played between neighboring agents in the model. The model demonstrates a situation where no agents have incentives to hide their economic knowledge, a situation that is observed in open source software development projects. The likelihood of obtaining a stable situation where new economic knowledge is openly shared is increased when heterogeneity of agents is introduced.      

油价上涨对世界经济的影响及中国能源政策选择

油价上涨给世界经济带来很大影响,引发了经济危机、加重了西方国家的财政负担和生产成本、加大了非产油国家的进口成本。高油价也给航空、速递等一些运输行业造成沉重负担,油价上涨的最终承担者是消费者。油价不断上涨促使各国调整能源结构,高油价给石油输出国带来丰厚收益的同时也带来一些负面影响,如腐败、暴力冲突、战争等。油价上涨要求中国大幅提高能源利用率,采用多元化能源战略,尽快建立国家石油战略储备,加强能源领域国际合作。     

轮胎温度场有限元分析系统的设计

文章针对轮胎在行驶过程中各部位胶料受热情况不一致这一特点,深入地研究了轮胎滚动过程中的稳态热平衡状态。并通过经验数据的积累,从轮胎结构的参数化设计、断面网格划分与有限元分析、温度场计算及结果输出5个角度,设计出轮胎温度场有限元分析系统,证明了输出的温度场云图与现实中稳态轮胎温度场的温度分布情况一致。     

Nonpoint Source Pollution Taxes and Excessive Tax Burden

If a regulator is unable to measure firms’ individual emissions, an ambient tax can be used to achieve the socially desired level of pollution. With this tax, each firm pays a unit tax on aggregate emissions. In order for the tax to be effective, firms must recognize that their decisions affect aggregate emissions. When firms behave strategically with respect to the tax-setting regulator, under plausible circumstances their tax burden is lower under an ambient tax, relative to the tax which charges firms on the basis of individual emissions. Firms may prefer the case where the regulator is unable to observe individual firm emissions, even if this asymmetric information causes the regulator to tax each firm on the basis of aggregate emissions.     

中国城镇家庭住房来源与产权的省际差异——基于2000年人口普查资料的分析

根据中国2000年人口普查资料,分析了中国城镇家庭住房来源与产权的省际差异。住房来源与产权选择省际差异不明显;基本是沿海经济发达地区住房来源中商品房来源与产权选择中租赁商品房比重高。相关分析表明:地区市场化指数与市场型住房正相关,收入和产权关系不明显,国有经济比重与行政型住房正相关,城市化率与购商品房比正相关,价格和住房产权负相关。这说明了制度变迁和地区经济差异对住房选择的影响。     

Collaboration, peer review and open source software

Open source software development may be superior to proprietary development because the open source organizational form naturally minimizes transactions costs associated with privately distributed information. This manifests itself in the ability of open source communities to encourage critical peer review and the sharing of ideas. When these activities are important, the open source organizational form may do better than a proprietary organizational form. My results suggest why open source is particularly powerful when maintainability of software is critical, and also suggest that the founder of a software project may be more likely to choose open source if there is an existing dominant proprietary software project.     

基于灰色系统理论的旅游客源预测模型--以中国入境旅游客源为例

本文基于灰色系统理论,以中国1978年以来入境客源为例,建构了旅游客源预测的灰色模型,并与常用的线性模型的预测精度进行了定量对比。所得基本结论为:①旅游系统是灰色系统,灰色系统理论是研究旅游现象的有力工具;②中国入境客源灰色GM(1,1)模型的预测精度高于线性模型;③就灰色预测而言,如果原始数据列较长(例如21年),对原始数据进行平滑处理所得预测模型精度较高,而对原始数据进行取自然对数的处理所得模型预测精度较低;如果原始数据列较短(例如5年),对原始数据进行取自然对数的预处理所得模型预测精度较高。本文所得结论对其他旅游序列预测应该具有一定的借鉴与参考价值。     

浙江省水利投融资的分析

在剖析了浙江省近年水利资金投向结构及水利建设资金来源构成的基础上，对浙江水利资金投向结构发生变化的原因以及浙江水利融资的特点进行了分析研究，提出了今后稳定水利投资规模的对策和建议。     

基于农业非点源污染控制的流域综合管理对策

流域综合管理是从整体上控制农业非点源污染、协调流域上下游环境经济社会发展、实现流域农业可持续发展的有效途径。本文以福建九龙江流域为例，通过分析农业非点源污染产生的系统过程、分布特征、控制环节、制约因素、控制步骤等内容，探讨以不同等级汇水区为单位实行流域综合管理的必要性，阐述了组成流域综合管理体系的经济、环境、社会政策措施。     

《抽油泵及其组件规范》采标的滞后问题

通过对2001年版API Spec 11AX《抽油泵及其组件规范》的研究分析，指出了新版标准的先进性、科学性和合理性，阐明GB／T18607—2001：API Spec 11AX(1996)《抽油泵及其组件规范》在采标中存在滞后问题。