人力资本边际收益递减、后发优势与经济增长——基于国家间面板数据的实证分析

学术界一般认为人力资本边际收益是递增的。本文利用一般动态模型根据世界银行提供的国别数据的实证分析得出的结论刚好相反:人力资本边际收益是递减的。从长期来看,世界的人力资本边际收益呈递减趋势;从国别比较来看,发展中国家的人力资本边际收益高于发达国家。而且从国家层面来看,人力资本存量与经济增长呈负相关关系:人力资本存量低的国家经济增长较快,而人力资本存量高的国家经济增长较慢。人力资本从穷国流向富国而不是相反,这是因为富国的总量劳动生产率高所带来的高工资所致,这并不意味着富国的人力资本边际收益比穷国更高。     

Persistent differences in national productivity growth rates with a common technology and free capital mobility: The roles of private thrift, public debt, capital taxation, and policy toward human capital formation

The paper develops a two-country endogenous growth model to investigate possible causes for the existence and persistence of productivity growth differentials between nations despite a common technology, constant returns to scale, and perfect international capital mobility. Private consumption is derived from a three-period overlapping generations specification. The source of productivity (growth) differentials in our model is the existence of a nontraded capital good (“human capital”) whose augmentation requires a nontraded current input (time spent by the young in education rather than leisure). We consider the influence on productivity growth differentials of private thrift, public debt, the taxation of capital and savings, and policy toward human capital formation.     

私人资本主导生产和分配及其财产权问题研究

人的生存和发展被设定为资本收益最大化的条件,是私人资本主导社会生产和社会分配以及二者结合的最大特点,这样必然出现:(1)获得生存和发展保障的只是一个特定的群体;(2)获得的保障有限;(3)要以牺牲部分人生存和发展保障为代价;(4)要以牺牲当代人和未来人生存和发展条件为代价。私人资本占有社会生产成果需要设计特别的财产权。资产阶级经济学的产权理论把剥削和占有的行为掩藏起来,让资本可以通吃其他生产要素的分配权。以私人财产面目掩盖着的私人资本,由于其占有其他生产要素收益权的产权关系不合理地扩展了私人财产本身应有的产权关系,其收益权的保护需要根据实际情况来确定。长期以来,在不合理的经济学理论引导下,社会生产和社会分配以及二者的结合以资本收益最大化为原则,人类社会生产发展以保障人生存和发展为目的被以资本收益最大化为目的取代,社会生产发展的目的和手段出现了不应该出现的倒置。资本家阶级原本只应该为社会生产的发展服务,为保障人的生存和发展服务,而不是要社会生产的发展或人的生存和发展为他们获取资本收益最大化服务。事实上,如果我们始终把资本家阶级看成是与社会生产的发展不可分割的部分,他们就是与社会生产发展过程有机组合起来的一个优秀群体,就如同是在社会生产发展过程中不可或缺的劳动者一样,参与社会生产的目的都是为了保障人的生存和发展。这样的优秀群体中的每一个人,必然、也应该会是真正自由而全面发展的人。     

二元结构下我国城镇劳动力市场中的性别工资差异研究

文章利用CHIP2002和CHIP2013数据,采用基于RIF无条件分位数回归的分解法,比较了不同时间维度和不同分位数水平上,我国农民工和城镇职工的性别工资差距及其形成机理。研究结果表明：第一,我国城镇劳动力市场中的性别工资差距不断扩大,其中农民工的性别工资差距全方位扩大,且低分位数上的增速最快,致使2013年其各分位数上的性别工资差距超过城镇职工。其中,低收入城镇职工与中等收入农民工群体的性别工资差距及其来源具有相似特征。第二,系数效应是造成城镇职工和农民工性别工资差异的主要因素,两个群体的性别歧视均有所增强。但与城镇职工相比,农民工群体的性别歧视较大且增速较快。由于低收入群体中性别歧视的快速增长,城镇劳动力市场中遭受性别歧视最严重的群体由2002年的高收入的城镇女性职工和高收入的女性农民工,转变为2013年中等收入的女性农民工和低收入的城镇女性职工。第三,尽管针对中高收入城镇女性职工的市场前歧视和市场歧视均有所弱化,但低收入的城镇女性人力资本水平及其回报率仍低于同类男性,呈现与女性农民工相似的特点。上述结果意味着,城镇劳动力市场中不同户籍、不同收入水平的女性,遭受着不同程度的性别歧视,应针对不同群体采用差别化的性别干预政策。     

基础设施资本回报率的估算及影响因素研究

文章在合理界定并调整基础设施统计口径基础上，运用永续盘存法非传统途径和生产函数法谨慎测算了基础设施的全套资本存量和资本回报率，并构造1993-2016年省级面板数据，从三个方面分解并检验了基础设施资本回报率的影响因素。研究发现：（1）全国生产性基础设施资本存量急剧攀升，年均增速达到12.6%。其中，经济基础设施存量持续高于社会基础设施。（2）基础设施资本回报率呈现倒"U"型变动趋势，且在不同基础设施类型和区域间保持稳健。其中，社会基础设施的资本回报率整体高于经济基础设施，东部地区的基础设施资本回报率高于中部地区，西部地区则长期处于低位运行。（3）基于基础设施资本产出比不断上升是其资本回报率持续下降的主因这一判断，进一步证实基础设施投资率及其资本深化程度，以及人力资本积累、城镇化等因素整体上均显著影响基础设施资本回报率。     

Wage Differentials among Ownership Groups and Worker Quality in Vietnamese Manufacturing

Wholly foreign multinational enterprises (WFs), joint-venture multinationals (JVs), state-owned enterprises (SOEs) pay higher wages than domestic private firms in Vietnamese manufacturing. In large samples of medium–large (20+ employees) firms, conditional differentials accounting for worker education and occupation, as well as capital intensity, size, and shares of female workers, were substantially smaller, but positive and significant. Wage levels and differentials varied substantially among industries. Conditional differentials remained positive and significant for WFs and JVs in most of the 11 industries examined, but estimates of SOE-private differentials were insignificant in most industries. Robustness checks using 2007 data yielded similar results.     

Human Capital and FDI Inflows to Developing Countries: New Empirical Evidence

Despite the dramatic increase in total foreign direct investment (FDI) flows to developing countries in the last few years, the bulk of the inflows has been directed to only a limited number of countries. It has been argued that developing countries might enhance their attractiveness as locations for FDI by pursuing policies that raise the level of local skills and build up human resource capabilities. Nevertheless, the empirical evidence in the literature in support of this recommendation for a large sample of developing countries is scant. This paper evaluates this argument in the light of the evolution in the structural characteristics of FDI and empirically tests the hypothesis that the level of human capital in host countries may affect the geographical distribution of FDI. The empirical findings are: (a) human capital is a statistically significant determinant of FDI inflows; (b) human capital is one of the most important determinants; and (c) its importance has become increasingly greater through time.     

IMPORTED SKILL‐BIASED TECHNOLOGICAL CHANGE IN DEVELOPING COUNTRIES

This paper discusses the occurrence of skill‐enhancing technology import, namely, the relationship between imports of embodied technology and widening skill‐based employment differentials in low‐ and middle‐income countries. Generalized method of moments (GMM) techniques are applied to an original panel dataset comprising 28 manufacturing sectors for 23 countries over a decade. Econometric results provide robust evidence of the determinants of widening employment differentials in low‐ and middle‐income countries. In particular, the proposed empirical evidence indicates capital–skill complementarity as a possible source of skill bias, while imported skill‐enhancing technology emerges as an additional driver of increasing demand for the skilled workers in these countries.     

Does Economic Policy Uncertainty Predict Exchange Rate Returns and Volatility? Evidence from a Nonparametric Causality-in-Quantiles Test

Recent studies have analysed the ability of measures of uncertainty to predict movements in macroeconomic and financial variables. The objective of this paper is to employ the recently proposed nonparametric causality-in-quantiles test to analyse the predictability of returns and volatility of sixteen U.S. dollar-based exchange rates (for both developed and developing countries) over the monthly period of 1999:01–2012:03, based on information provided by a news-based measure of relative uncertainty, i.e., the differential between domestic and U.S. uncertainties. The causality-in-quantile approach allows us to test for not only causality-in-mean (1st moment), but also causality that may exist in the tails of the joint distribution of the variables. In addition, we are also able to investigate causality-in-variance (volatility spillovers) when causality in the conditional-mean may not exist, yet higher order interdependencies might emerge. We motivate our analysis by employing tests for nonlinearity. These tests detect nonlinearity, as well as the existence of structural breaks in the exchange rate returns, and in its relationship with the EPU differential, implying that the Granger causality tests based on a linear framework is likely to suffer from misspecification. The results of our nonparametric causality-in-quantiles test indicate that for seven exchange rates EPU differentials have a causal impact on the variance of exchange rate returns but not on the returns themselves at all parts of the conditional distribution. We also find that EPU differentials have predictive ability for both exchange rate returns as well as the return variance over the entire conditional distribution for four exchange rates.     

Determinants of Trade Misinvoicing

Trade misinvoicing should be seen as an element of de facto capital account openness. Traditional explanations for trade misinvoicing??high custom duties and weak domestic economies??are less persuasive in a world of high growth emerging markets that have low trade barriers. We construct a 53-country data set over a 26?year span, covering both industrialized and developing countries, to study the phenomena of export and import misinvoicing. Capital account openness, differentials in interest rates, political stability, corruption, indebtedness and the exchange rate regime are identified as factors related to misinvoicing.     

人力资本、歧视与农民工收入——基于浙江省问卷调查数据的实证研究

本文基于人力资本理论和歧视理论对农民工和城镇职工工资差距进行的实证研究表明,人力资本是导致农民工低收入的主要原因,其中教育对工资差距具有决定性影响;歧视对农民工收入起重要作用,其中反向歧视已成为农民工歧视的主要表现形式。实现农民工收入增长和城乡劳动者平等就业必须"两手抓",一手抓农民工人力资本提升,一手抓制度改革消除对城镇职工的保护和偏袒。     

An Analysis of the Effect of Schooling,Experience and Sex On Earnings in the Government and Private Sectors of Urban Java

The returns to education in Indonesia are analysed using Susenas data. The private sector is found to reward education more generously than the public sector, while the latter puts a premium on experience. A casual analysis suggests general sex discrimination against female workers at any given level of education; however, once experience is allowed for, the negative sex differentials become insignificant. Finally, the general returns to education are of the order of 15–17% additional income for each additional year of schooling, which is a very high rate of return compared with other countries.     

Demographic change,human capital,and economic growth in Korea

We construct a measure of human capital using micro datasets on labor composition of age, gender, education, and wage rate and analyze its role in economic growth for the Korean economy. Over the past three decades, human capital has grown steadily at about 1% per year, contrasting to a continuously declining trend of total work-hours. This growth has been driven by the rise of better-educated baby-boom cohorts. A growth accounting exercise shows that human capital contributes significantly to economic growth; it accounted for 0.5% points of annual GDP growth over the period. Human capital is projected to remain a major growth factor over the next two decades as the increase in educational attainment continues. Increased employment rate of elderly or female workers reduces the aggregate human capital growth while increasing the available labor. Polices to improve human capital of female or elderly workers help to increase aggregate human capital growth.     

Long-Term Attachments and Long-Run Firm Rates of Return

Long-term attachments between workers and firms are common. Numerous studies have examined worker returns to tenure, but little is known of firm returns to firm-worker matches. Yet these attachments represent a human capital asset quasi-held by the firm, which is not captured by traditional accounting measures of firm assets. Firms with large quasi-holdings of human capital will have higher measured return on assets, other things equal. Analysis of data on 250 large manufacturing firms supports the view that firms profit from long-term attachments with their workers. Consequently, unmeasured human capital assets contribute to the explanation of persistence in measured long-run excess profits across firms.     

The Leontief paradox in a multi-country setting: Comments

Conclusions Apart from the commodity mix effect, exports, imports consumption and production respond identically to changes in relative capital endowment, regardless of whether one refers to physical capital, human capital or total capital. Hence, when allowing technology and product mix to vary, one cannot distinguish between export goods and import goods in terms of capital intensity. These conclusions are still in agreement with Hirsch [1977, p. 418] who argues “Poor countries export low capital-intensive and import high capital-intensive goods, while rich countries import low capital-intensive and export high capital-intensive goods.” The only response that is significantly different is due to the commodity mix effect.     

The Role of Human Capital in Economic Development: Evidence from Taiwan

The use of Taiwanese industrial data to investigate two potentially important roles of human capital on long-run economic growth (i.e. factor accumulation and technology progress), we find that human capital accounts for 46% of output growth in aggregate manufacturing industry and from 23 to 84% in two-digit industries. Significant knowledge spillover effects were found within Taiwan's manufacturing sector. For aggregate manufacturing, a roughly 29% of total rate of return to education gives a private return of 7% while the external knowledge spillover effect is 22%. For the two-digit industries, the inter-industry effect of education measures two to three times its intra-industry effect. Contrary to the Lau-Young proposition, we find that technology change in terms of knowledge spillover contributes 39% to the output growth of Taiwan's aggregate manufacturing and from 12 to 42% to that of the two-digit industries. Our results also suggest that, in the presence of externalities, growth accounting based on macro data may be misleading in interpreting the sources of growth.
In addition, the case study of Taiwan suggests that opening trade broadens opportunities, and hence increases the return on human-capital investment. However, our estimation results also suggest that in terms of capturing the growth benefits from trade, threshold levels of human capital exist in most industries.     

Technology Transfer,Income Distribution and the Process of Economic Development

This paper studies the role of income distribution and technology transfer in the process of economic development. A novel aspect of the model is that the composition of human capital as well as the level affect economic growth. Utilizing an overlapping-generations model in which income distribution changes endogenously, we present an economic explanation for why some countries could not start modern economic growth; why some countries took off but have apparently stopped growing after some time; and why some countries have successfully developed and continue to grow.     

Technology and the great divergence: Global economic development since 1820

The paper measures productivity growth in seventeen countries in the nineteenth and twentieth centuries. GDP per worker and capital per worker in 1985 US dollars were estimated for 1820, 1850, 1880, 1913, and 1939 by using historical national accounts to back cast Penn World Table data for 1965 and 1990. Frontier and econometric production functions are used to measure neutral technical change and local technical change. The latter includes concurrent increases in capital per worker and output per worker beyond the highest values achieved. These increases were pioneered by the rich countries of the day. An increase in the capital-labor ratio was usually followed by a half century in which rich countries raised output per worker at that higher ratio. Then the rich countries moved on to a higher capital-ratio, and technical progress ceased at the lower ratio they abandoned. Most of the benefits of technical progress accrued to the rich countries that pioneered it. It is remarkable that countries in 1990 with low capital labor ratios achieved an output per worker that was no higher than countries with the same capital labor ratio in 1820. In the course of the last two hundred years, the rich countries created the production function of the world that defines the growth possibilities of poor countries today.     

论人力资本会计的困惑与出路

文章剖析了人力资本会计存在的固感,并就存在的问题提出了解决的思路。即建立人力资本成本会计与人力资本产权会计来构建完整的人力资本会计,通过人力资本会计来提供人力资本成本和当期人力资本价值的信息,为人力资本管理服务。     

农户收入差距微观原因分析:山西的经验证据

本文基于山西农村876户的微观数据集,使用非参数回归对影响农户收入差距的原因加以分析,经验研究的结果发现：1．教育体现出的人力资本是拉大农户收入差距的主要原因：2．物质资本对于减小农户收入的差距有显著影响,土地对于农户收入差距没有显著影响;3．相比较低收入组农户,中等收入农户教育回报高出4．08％,高收入农户教育回报高出6．28％,相反,物质资本回报上,则是中等收入组和高收入组农户分别比低收入组要低5．8％和9．9％。