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.     

养老保险制度转轨的经济学分析

养老保险制度从现收现付制到基金制的转轨是当今社会保障制度改革的潮流。从经济学的角度看 ,必须满足条件 :市场实际利率大于消费贴现率 ,消费贴现率大于人口增长率与劳动生产率增长率之和 ,并且都大于零 ,养老保险的转轨才能提高效率。当前 ,我国养老保险制度转轨的时机尚未成熟 ,不宜实行完全基金制。     

The economics of the super‐multiplier: A comprehensive treatment with labor markets

This paper links the super‐multiplier to Keynesian macroeconomics, showing it to be the most Keynesian of growth perspectives. Next, the paper shows that the super‐multiplier is a micro‐economically coherent theory of investment and capital accumulation. Firms’ decisions regarding capital accumulation coordinate demand and supply growth in goods markets. The paper then explores the implications of incorporating the super‐multiplier in the neo‐Kaleckian and Cambridge growth models. Lastly, it shows how labor markets and unemployment can be added into super‐multiplier models to provide a comprehensive growth model that addresses Solow's (1956, Journal of Economics, 70, 65–94) labor market knife‐edge problem. Incorporating labor markets does not change the fundamental super‐multiplier result that growth is determined by the growth of autonomous demand.     

国防支出与经济增长均衡关系的理论和实证研究——基于门槛回归模型的检验分析

文章首先将国防支出纳入Solow增长模型进行理论分析,假定国防支出通过影响技术进步对经济增长产生影响。与现有实证分析不同,文章基于1952-2008年中国的有关时间序列数据,尝试运用非线性门槛回归模型来分析国防支出与经济增长之间的数量关系。研究发现:国防支出与经济增长之间存在门槛效应,国防支出占GDP的比例低于3.434%时,国防支出占GDP的比例的增加不利于经济增长,且这种负面作用较为显著;当该比例高于3.434%时,该比例的增加将显著促进经济增长。当然,该比例并非越低越好,也并非越高越好,其局部最优规模由次级门槛值决定。     

水利投入对安徽省经济增长的拉动作用

通过建立扩展的Solow模型,计算安徽省水利投入对经济增长的贡献。结果表明,安徽省水利投入对国民经济增长的拉动作用较大,对经济产出的贡献率在10%左右,说明水利投入在国民经济发展中起着非常重要的作用。     

中国烟草加工业市场力量再估测

目前国内关于市场力量估测的研究以使用NEIO模型为主,其主要缺陷在于只能估测卖方市场力量,且精确性不足。本文所采用和修正的原始—对偶索洛余值法,一方面可同时估测买方和卖方市场力量,另一方面所使用的数据可获得性强,估测结果也较精确。通过对我国烟草加工业1985～2007年的时间序列数据进行实证研究发现,我国烟草加工业在上游烟叶收购环节具有很强的买方市场力量,在下游卷烟销售环节也具有较强的卖方市场力量,但买方市场力量更强。同时,以上两个环节的市场力量都呈现出明显增强的趋势,两者相比,买方市场力量的增幅更大。     

要素投入、技术进步与经济增长

运用误差校正模型方法,估计了中国1952～1998年期间扩展的索洛模型和内生技术进步经济增长模型,比较分析了各种投入要素以及技术进步对经济增长的作用.     

Two‐level CES Production Technology in the Solow and Diamond Growth Models*

The two‐level CES aggregate production function—that nests a CES into another CES function—has recently been used extensively in theoretical and empirical applications of macroeconomics. We examine the theoretical properties of this production technology and establish existence and stability conditions of steady states under the Solow and Diamond growth models. It is shown that in the Solow model the sufficient condition for a steady state is fulfilled for a wide range of substitution parameter values. This is in sharp contrast with the two‐factor Solow model, where only an elasticity of substitution equal to one is sufficient to guarantee the existence of a steady state. In the Diamond model, multiple equilibria can occur when the aggregate elasticity of substitution is lower than the capital share. Moreover, it is shown that for high initial levels of capital and factor substitutability, the effect of a further increase in a substitution parameter on the steady state depends on capital–skill complementarity.     

建设用地扩张对经济持续增长能力影响

首先从索罗增长模型出发分析表示经济持续增长能力的关键指标,其次通过1998—2008年中国省际面板数据回归分析建设用地规模对相关关键指标影响,以推出建设用地扩张对经济持续增长能力影响。结果表明:①索罗增长模型中单位资本产出水平是考量经济持续增长能力的重要指标,其决定经济增长率与增长空间;②面板计量结果中1998—2008年间中国建设用地数量对单位资本产出水平有显著负影响,说明期间建设用地扩张减小经济增长率与增长空间。研究认为,在经济转型期中国应严控建设用地扩张,以减小经济增长对土地资源依赖程度,进而促进技术进步,倒逼经济增长方式转变。     

中国经济增长的可能性:一种基于修正的索洛模型的估算

索洛模型这一经典的经济增长模型有它无可比拟的优点,但对于考察中国问题来说,也有一些内在缺陷.本文根据中国经济增长的特征事实,对索洛模型做出了一些修正,并据此对中国经济增长的可能性进行了重新估算.