Innovative productivity and returns to scale in the pharmaceutical industry

This study shows that firms in the pharmaceutical industry experience decreasing returns to scale in R & D as the level of R & D expenditures rises. The paper presents the results of our study of the innovative output of 16 pharmaceutical firms over a 19 year period. Given the strong correlation between R & D budgets and firm size, our study suggests the wave of mergers in the industry may yield less innovative productivity than managers expect.     

超市进货交易关系法律调整的若干问题探讨——论“零供”关系法律调整

近年来，我国零售商供应商矛盾突出，引起了各方关注。商务部等五部委发布的《零售商供应商公平交易管理办法》，是近年来专门调整零供关系的政府部门规章，在稳定流通秩序方面发挥了一定的作用，但对此也有一些不同观点。为完善零供（买卖）关系的法律规范体系，推进和谐商业环境及商事法治建设，本文对调整零供关系的法律属性，少数零售企业恶意占压、骗取供应商贷款的综合治理，风险预誓机制等相关问题提出了自己的一些见解。     

发展我国养老保险的思考

本文分析了现阶段养老保险中人口老龄化的压力日益加剧，覆盖范围明显过窄，已入保群体“空账运行”，养老待遇过低等问题，提出了提高退休年龄、降低缴费比率、将社会统筹基金与个人账户基金实行分账管理、让基金保值增值加快社会保障制度立法等若干相关政策建议。     

“万村千乡”推广悖论及其解决方案

在农村消费市场存在差异的条件下，全国范围的以行政补贴和市场推广相结合的“万村千乡”推广方式将面临“推广悖论”，即工程的普遍服务职能与企业追求利润的目标之间的冲突，进而可能会造成财政补贴资金的浪费。应在不同区域采用不同的推广策略：发达地区农村，应以企业自主经营为主；具有一定消费市场潜力但企业开拓成本还比较高的地区，应行政补贴和市场推广相结合；尚不具备经营条件的农村地区，应加强基础设施建设，并提高农民收入水平，待时机成熟后再逐步推进。     

上海石化加速乙烯发展的战略分析

入世以后上海石化面临的竞争日趋激烈，合资的乙烯装置凭借其规模大，技术先进的优势对上海石化构成竞争态势，上海石化须集中资金、发展乙烯、从而带动乙烯及其乙烯下游产品的发展，扩大规模，提高经济效益，使上海石化的实力迅速增强。     

A Cross‐national Comparison of R&D Expenditure Decisions: Tax Incentives and Financial Constraints*

We provide evidence on the impact of tax incentives and financial constraints on corporate R&D expenditure decisions. We contribute to extant research by comparing R&D expenditures in the United States and Canada, thereby exploiting the differences in the two countries' R&D tax credit mechanisms and generally accepted accounting principles. The two tax incentive mechanism designs are consistent with differing views of the degree of financial constraints faced by firms in these economies. Our sample also allows us to explore the effects of capitalizing R&D on Canadian firms. Employing a matched design, we document relations between tax credit incentives and R&D spending consistent with both Canadian and U.S. public companies responding as though they are not financially constrained. We estimate that the Canadian credit system induces, on average, $1.30 of additional R&D spending per dollar of taxes forgone while the U.S. system induces, on average, $2.96 of additional spending. We also find that firms that capitalize R&D costs in Canada spend, on average, 18 percent more on R&D. Collectively, this evidence is important to the ongoing debates in both countries concerning the appropriate design of incentives for R&D and is consistent with the assumptions found in the U.S. tax credit system, but not those found in the Canadian system.     

Research on impacts of international textile trade development on Chinese textile trade and countermeasure s

Under the international textile trade development condition, the author analyzes the international textile trade market and the situation of Chinese textile trade after China entry into WTO, reveals the influence of the world textile trade development on Chinese textile trade, and proposes a series     

What＇s So Special about China＇s Exports？ A Comment

Dani Rodrik argues that China's exports are unusually sophisticated for a country at its income level. He also claims that China's export sophistication reflects the government's successful industrial policy and has been instrumental in the recent acceleration of its economic growth. Although Rodrik's interpretation of China's economic growth is broadly correct, the accuracy of his empirical analysis is questionable. This note identifies several problems regarding the “export sophistication” index used in his empirical work and casts doubt on his analysis.     

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.