适度消费与环境保护

本文从经济活动的消费入手,揭示过度消费对环境造成的巨大危害并分析其原因,进而提出适度消费的观点和实行适度消费的两点建议。     

Taxes and labor supply: Portugal, Europe, and the United States

I relate hours worked with taxes on consumption and labor for Portugal, France, Spain, United Kingdom and United States. From 1986 to 2001, hours per worker in Portugal decreased from 35.1 to 32.6. With the parameters for Portugal, the model predicts hours worked in 2001 with an error of only 12 min from the actual hours. Across countries, most predictions differ from the data by 1 h or less. The model is not sensible to special assumptions on the parameters. I calculate the long run effects of taxes on consumption, hours, capital and welfare for Portugal. I extend the model to discuss implications for Social Security. I discuss the steady state and the transition from a pay-as-you-go to a fully funded system.

实际外部财富、劳动生产率与人民币实际汇率——基于跨期一般均衡理论的实证研究

本文首先构建关于实际外部财富、劳动生产率、贸易条件与实际汇率关系的跨时一般均衡理论模型,然后利用1981-2009年相关时间序列数据,检验中国实际外部财富、贸易条件以及国内外两部门劳动生产率对人民币实际汇率的影响。结果表明,从长期看,中国实际外部财富的急剧攀升会引发人民币实际汇率快速升值;中国贸易部门相对非贸易部门劳动生产率上升会促使人民币实际汇率升值,而国外贸易部门相对非贸易部门的劳动生产率提高则会降低人民币实际汇率,净效应表现为劳动生产率并不能解释20世纪80年代以来人民币实际汇率的长期波动;中国贸易条件对人民币实际汇率的影响不明显。短期内,中国实际外部财富对人民币实际汇率的作用关系与长期一致。根据上述结论,本文提出了保持人民币实际汇率相对稳定的政策建议。     

城市居民环境行为模型构建——基于北京城市居民的调研数据分析

随着城市化进程的加快,城市环境问题已经不容忽视。很多污染问题都是直接或间接由城市居民的行为造成的,也就是说,城市居民的环境行为会直接对环境状况的改善或恶化起作用,因此对城市居民环境行为研究具有重要意义。本文在借鉴以往对环境行为研究的基础上,结合中国城市居民的特征,构建了包括环境行为、环境意识、环境知识、外界因素、个性变量为结构变量并构造结构变量间关系的城市居民环境行为模型,然后通过在北京的五个小区发放并回收311份问卷数据的基础上,运用VPLS、SPSS等统计软件对数据进行观测变量分析、模型测评属性评价和模型检验等分析,完成了对模型的实证分析,最后在结果分析的基础上提出了分别从环境行为、环境意识、环境知识等几个维度来改进城市居民环境行为表现的建议。     

Cyclicality of markups and real wages in Korea

This paper examines the cyclical patterns of markups, real wages, and labor share for Korean industries. Markup ratio is greater than 1 in most industries. Markups are countercyclical, and real wages and labor share are procyclical. Income distribution effect has more impact on determining markups than price and technology effect.     

The challenge to china’s enterprises from increasing labor costs: the product quality perspective

ABSTRACT

Using China Employer–Employee Survey data, this paper investigates the possible heterogeneous results of increasing labor costs of different firms. The paper finds that, unskilled labors have a higher wage growth rate than the skilled labor. Firms with higher product quality employ more skilled labor, and thus are less affected by the increasing labor costs. On the other hand, firms with higher product quality have less elastic demand, which makes it possible for them to increase their prices without demand decreasing. The conclusions are well supported by the data. Therefore, we should treat the challenge of increasing labor cost in a new way. The real challenge of increasing labor cost is greater for low-quality firms. The empirical results suggest that some of the low-quality firms should upgrade their quality to a higher level to offset their labor cost increase.

Abbreviations: CEES: China Employer-Employee Survey LP: Labor productivity LTP: Lewis turing point TFP: Total factor productivity     

A consumption-based approach to environmental Kuznets curves using the ecological footprint indicator

Recent research suggests that consumption-based measures offer an insightful perspective on the debate on the relationship between economic growth and the environment. In this article we deepen the consumption-based line of inquiry by investigating the empirical evidence in support of the environmental Kuznets hypothesis using 2001 ecological footprint data for 141 countries. We perform Ordinary Least Squares and Weighted Least Squares analysis on linear, quadratic and cubic functions, in standard and logarithmic specifications, as candidate models to represent the relationship between per capita income and environmental pressure. We replicate the cross country analysis also by estimating the regression function directly, through a nonparametric regression. In our analyses, with and without weighing data by population, the results do not show evidence of de-linking.     

Joint outputs and real wage rates

The magnification effect in standard international trade theory asserts that if the relative price of the labor-intensive commodity increases, the real wage will also increase, as will the wage/rental ratio. This result depends upon the assumption that both activities are nonjoint—each combining labor and capital to produce a single output, so that if activities are joint instead, the results are in jeopardy. It is shown that if the difference between the share of commodity one produced in the first activity and in the second activity exceeds the difference between the labor distributive shares in the first activity and the second, an increase in commodity 1's relative price raises the wage/rental ratio. The real wage unambiguously rises in this case if and only if the ratio of the commodity output shares in the two activities exceeds the ratio of labor shares.     

金融资产与实物资产对城镇居民消费影响的差异性研究

本文在相关资料基础上,对我国城镇居民持有金融资产与实物资产进行了重新核算,并采用ARDL-UECM模型计量分析了长短期内金融资产、实物资产对消费影响的差异性。结果表明:金融资产长期内对消费支出存在较弱的抑制作用,短期内存在较弱的促进作用;而实物资产长期内对消费存在有限的促进作用,短期内对消费存在较强的促进作用。产生这种差异的原因主要是:超额比重预防性储蓄导致金融资产对居民消费产生长期扭曲,以及过高自有住房率在房价攀升时只能提高短期边际消费倾向,长期则有限。现阶段只有降低超额比重预防性储蓄及抑制过高的房价才能进一步提高城镇居民的资产财富效应。     

浅议全民质量意识

质量是全社会的事情。全民质量意识的缺失,成为引发中国国内假冒伪劣产品泛滥,国外引发“质量门”事件的关键因素,也成为部分跨国公司在华销售产品采取国内国外双重标准的借口。因此,通过多层次多方面的质量培训与教育,树立全民质量意识,有利于提高产品质量,有利于经济发展由数量型向质量型转变。     

房价结构调整与经济结构转型

目前,我国住宅房地产价格明显偏离正常值。对房价结构的分析表明,房价结构中33.86%的资金流向了政府。经过房价结构这一隐秘机制的运行,本来属于居民消费领域的购房资金被转变为政府投资资本,导致经济结构中投资与消费之间的比例失衡。这与我国加快经济结构调整,增加消费在促进经济增长中的比重相悖。为应对上述情况,加快优化房价结构是促进经济结构转型的有力举措。     

Environmental groups in monopolistic markets

We examine a market in which a monopolistic firm supplies a good. The production of the good causes damage to the environment. Consumers are heterogeneous with respect to their disutility of the environmental damage. An environmental group can enter the market and set up a campaign in order to influence consumers’ preferences. We characterize the equilibrium of the resulting entry-deterrence game and investigate its properties. It turns out that the aggregated environmental damage is lowest if the firm is able to deter entry of the environmental group and, moreover, the fixed entry cost of the environmental group is small enough.      

经济增长与环境质量可持续发展的实证分析

本文以我国工业在发展过程中产生的“三废”为研究对象,以环境库兹涅茨曲线假设为基础,通过比较新旧环境库兹涅茨模型构建了能较好反映经济增长对环境影响的计量模型,并对其环境库兹涅茨曲线特征及所涉及的和经济增长环境的关系进行了分析,得到经济增长与环境质量之间的关系,并依据此关系给出经济与环境可持续发展的政策建议。     

提高企业职工质量意识的有效途径

质量意识是质量的思想方法论,是人们对质量问题认识的心理体验的总和。提高企业职工质量意识,是实现企业质量振兴的基础。     

Optimal growth when environmental quality is a research asset

We advance an original assumption whereby a good state of the environment positively affects labor productivity in R&D such that deteriorating environmental quality negatively impacts R&D. We study the implications of this assumption for the optimal solution in an R&D-based model of growth, where the use of a non-renewable resource generates pollution. We show that in such a case, it is socially optimal to postpone extraction, as opposed to the situation in which the environment has no effect on productivity in R&D. Furthermore, insofar as environmental quality declines and subsequently recovers, we find that it is optimal to re-allocate employment to R&D in line with productivity changes. If environmental quality recovers only partially from pollution, R&D effort optimally begins above its long-run level, then progressively declines to a minimum and eventually increases to its steady-state level.