Overcoming the “Solow paradox”: Tariff reduction and productivity growth of Chinese ICT firms

This paper examines the phenomenon of the “Solow paradox” in China using the Annual Survey of Industrial Production database and the China Customs Records dataset from 1998 to 2007. We find that China likely fell into the Solow paradox in the period 1998–2002, but the total factor productivity of information and communication technology (ICT) enterprises has achieved rapid growth since 2003. Accession to the World Trade Organization is the key reason for China to overcome the Solow paradox, that is, input tariff reduction significantly promoted the productivity of ICT firms. A series of validity and robustness checks confirmed the results. Mechanism analysis shows that input liberalization promotes the productivity of ICT firms through optimizing factor structure, importing more and high-quality inputs, and increasing research and development investment. The conclusions provide strong empirical evidence for developing countries to overcome the Solow paradox through trade liberalization.     

新农村建设需要重点解决好的几个问题

建设社会主义新农村既是我国在新时期作出的一项伟大的战略部署,又是我国在加快推进社会主义经济建设和社会和谐发展中所面临的一项艰巨的历史任务.加快社会主义新农村建设,必须选准切入点,抓住关节点,稳步推进,力求实效.     

Does computer penetration increase farmers’ income? An empirical study from China

The diffusion and adoption of modern information technology provide new chance for China to close urban-rural income gap. This paper uses China's provincial panel data from 2002 to 2013 to investigate the effect of computer penetration on rural residents' income. A public program aiming to connect every village with broadband Internet and other rural facilities provides plausibly exogenous variation in rural residents' availability and adoption of the broadband Internet, which is used to explore the instrument variable for rural computer penetration. The results show that rural computer penetration tends to increase rural residents' income over time, but the average effect remains limited. The dynamic panel threshold effects model, which allows for both the threshold variable and other covariates to be endogenous, is further used to explore the constraints of the income-increase effect of rural computer penetration. It shows that the effect is at least doubled over the average effect estimated from instrument variables method, once the digital divide causes are removed. Our findings have important implications for the government to increase rural residents' income and reduce urban-rural income gap by encouraging rural computer usage and removing the digital divide.     

对我国水果进出口贸易的思考

近20年来,我国水果总产量增长迅速,水果进出口贸易增长的幅度也很快,但是水果进口额增长速度远远高于出口额增长速度。目前我国水果出口存在很多问题,如没有自己的品牌,经营观念落后等。这造成了我国虽然是水果的生产大国,却是出口小国。本文对我国水果出口存在的问题,提出了一些解决方法。     

The value of nonindigenous species risk assessment in international trade

Managing the introduction of nonindigenous species is becoming a major goal of policy-makers at regional, national and international scales. Here we investigate, at the national level, the ideal design and expected net benefits of a risk assessment program for evaluating the desirability of nonindigenous species imports. We show how to enhance the statistical rigor of such a system by correcting a common non-random sampling problem encountered in the data. This correction enables model output to be interpreted in an economically relevant way and facilitates a theoretically rigorous characterization of the balance between trade and nonindigenous species establishment risk. Using reptiles and amphibians imported to the U.S. as a case study, we characterize economic outcomes over a range of cases and demonstrate substantial expected returns to such a screening program, relative to the current effectively open-door policy. Our results are informative for the current debate in the U.S. about whether to require federal agencies to apply risk assessment before allowing a species for import. The framework presented decomposes a complex argument about risk management into component economic and statistical parts, allowing for debate and improved understanding over each element to inform the overall program in a transparent fashion.     

全球经济危机对我国进出口贸易的影响——基于多参数平滑法的定量分析

选取2000-2010年我国进出口的月度数据,运用多参数平滑方法,分析了全球经济危机对我国进出口贸易的影响。定量分析显示全球经济危机使我国2009年和2010年对外出口规模减少额超过10000亿美元,进口规模减少额超过6000亿美元,影响十分巨大,危机开始时对一般贸易的影响超过对进出口的整体影响。随着我国政府实施扩张性的财政政策和货币政策的效果逐渐显现,世界经济逐步回暖,全球经济危机对我国进出口的影响逐渐减少。进一步的研究显示:危机使得我国对欧盟进出口的影响超过了对美国进出口的影响;对欧美地区出口的影响超过进口的影响;对我国不同地区进出口的影响是从东到西影响强度逐步减弱,对外开放程度越高的地区受到的影响越显著,能够充分发挥比较优势的产品或行业受到全球经济危机负面影响的程度较小。     

我国原木进口变化驱动因素的实证分析

过去的十几年间,我国木材进口迅猛增长.木材的大量进口一方面缓解了国内的需求压力,另一方面也带来了诸多不利影响.因此,研究我国木材进口迅猛增长的根源意义重大.在分析我国近年来原木进口变化趋势的基础上,利用逐步回归法定量分析了导致我国木材进口快速增加的主要因素.研究结果表明:1993-2008年间,国内木材产量、家具和木材...     

我国三线城市保险业发展水平和综合竞争力的比较分析

随着保险公司在一、二线城市竞争的日趋激烈,三线城市保险业的发展商机已经显现。影响三线城市保险业发展水平和综合竞争力的主要因素包括GDP、人口数量及分布、城镇居民人均可支配收入和地理位置等,并最终反映在原保费收入、保费收入增长率、保险深度和保险密度这些衡量城市保险业竞争力和发展水平的主要客观性指标上,据此构建我国城市保险业综合竞争力评价模型,并运用此模型从实证的角度对2009年我国三线城市保险业发展水平和综合竞争力进行了测定和排序。     

我国稀土出口贸易中利益相关方博弈分析

稀土进出口贸易中各方的利益获得不仅取决于自己的行为,也受到相关方行为的重要影响。作为世界最大的稀土资源国、生产国、出口国和消费国,我国对稀土出口的管理政策引致世界稀土进口国及其他稀土资源国的一系列反应措施。本文运用完全信息动态博弈模型分析我国与稀土进口国、我国与其他稀土资源国之间的博弈,研究得知各方为获得利益最大化可采取的策略选择以及相关各方博弈的结果,进而对我国稀土出口贸易管理提出建议。     

辗辊式井下采油筛管的研制及应用

针对油田在用井下采油筛管防砂过程中出现的砂堵等问题,依据能量转换原理,研制出一种辗辊式井下采油筛管。辗辊式筛管既防砂又不发生砂堵,还具有穿透性和节能效果明显等特点,不仅可用于一般的采油井、含砂量大和压裂的井,还可用于污水泵的保护。