Optimal Patent Protection in a Two-Sector Economy

This article addresses the issue of optimal patent protection in an economy with a downstream and an upstream sector. The key insight is that higher patent protection in the downstream sector raises the incentives of agents to do R&D in that sector but discourages innovation in the upstream sector because of a market size effect. Hence, higher patent protection in the upstream sector accelerates growth whereas higher patent protection in the downstream sector slows it down. If some innovation is socially desirable, optimal patent protection is necessarily higher in the upstream than in the downstream sector.     

格莱明银行模式:基于关联博弈的分析

从关联博弈角度对格莱明银行模式进行了分析,认为格莱明银行小组贷款模式实现了贷款博弈与社会资本博弈的紧密结合,正是这种紧密关联博弈克服了成员贷款中的 "搭便车"行为.由于重复博弈的存在,社会资本成为一种可置信的威胁,保证了贷款协议的执行,成功克服了合约中产生的代理问题.格莱明银行模式对我国小额信贷激励机制的建立具有重要的参考价值.     

专家认为解决我国外贸高顺差问题要靠扩大进口

海关总署数据显示,2006年我国对外贸易规模达17606.9亿美元,比2005年增长23.8%,我国对外贸易发展增速已经连续5年保持在20%以上.2006年我国外贸比2005年净增加3387.8亿美元,超过1998年全年的进出口规模.2006年我国外贸出口9690.8亿美元,增长27.2%,同比回落1.2个百分点;进口7916.1亿美元,增长20%,同比上升2.4个百分点.2006年我国外贸顺差达到1774.7亿美元,较2005年的1019亿美元上涨74%,再创新高.有关专家认为,我国的外贸顺差有短期因素的作用,但主要是由一些长期因素决定的.扩大进口是解决这一问题的主要办法.     

反腐败之"高薪养廉"对策辨误

“高薪养廉”是很多人极力推崇的对策之一，无论是从理论上还是实践上看，“高薪养廉”都不适合中国国情，不能从根本上解决腐败问题。腐败问题的解决是一项系统工程。     

Money and specialization

Summary.  This paper examines the relationship between specialization and the use of money in two versions of the search-theoretic monetary model. The first version establishes a surprising result that specialization is more likely to occur in a barter economy than in a monetary economy. The result is reversed in the second version where a different specification of preferences is adopted to limit the scope of barter. This contrast between the results provides a concrete illustration of the general argument that money encourages specialization only when it enlarges the extent of the market. Received: January 31, 1995; revised version August 12, 1996     

全面整合旅游资源,推进广州旅游业的深度发展

<正> 广州旅游业发展到今天,已经完成了“基本原始积累” 的数量型发展阶段,实现了旅游产业化的飞跃。而在新的形势下,如何提升旅游业的综合竞争力,促进其向效益型、质量型的产业转变,引发新的飞跃,出路在于:全面整合旅游资源,推进旅游业的深度发展。     

Firm-level interactions between exporting and productivity: Industry-specific evidence

This paper investigates interactions between exporting and productivity at the firm level, using a panel of firms in the UK chemical industry. This is both highly technology intensive and the UK’s largest exporting sector. We find exporters are more productive than non-exporters, but are also on average smaller. This superior productivity performance among exporters appears to be caused by both self-selection and learning-by-exporting effects. In contrast to other studies, we find learning effects are significantly positive among new entrants, weaker for more experienced exporters and negative for established exporters. JEL no. F14, D21, L65     

倾力构建网络泉城

在济南市一合资公司任部门经理的李世新有一个习惯:不管多忙,每天晚上两个小时的上网时间他总会想办法挤出来。“在互联网上看一看,了解跟自己有关的东西,也放松紧张了一天的神经。”