中国产业结构调整对汇率变动的冲击效应分析

转轨时期中国产业结构的升级可能会影响人民币汇率调整路径。本文运用Blanchard&Quah提出的对结构性冲击影响进行长期约束的方法,在实际冲击与名义冲击的基础上,进一步分析了产业结构调整对人民币汇率的冲击效应。结果表明,产业结构调整是影响人民币汇率变动的一个重要来源,并且产业结构调整对人民币汇率变动的冲击效应具有明显的结构性特征。实际有效汇率和名义有效汇率波动吸收第一、第二、第三产业和非农产业变化冲击的时期大体相同,分别为4、9、10和4个季度(期),但相较于对实际有效汇率的冲击,各产业结构调整对名义汇率的冲击效应更为显著,服务业的发展有利于弱化制造业和农业发展对人民币汇率的升值压力。     

Wage differences in the hospitality sector

The article examines the origin of differences between wages in the hospitality sector and the rest of the private sector in Spain. The evidence obtained for the 2002–2010 period shows that the wage disadvantage of hospitality presents an increasing profile along the wage distribution so that it is particularly relevant for those earning comparatively higher salaries. In contrast with other low-wage sectors, lower wages in hospitality are explained almost entirely by the specific characteristics of its workers and jobs (particularly their lower educational qualifications and their higher presence in low-skilled occupations), and not by the existence of lower rewards to those characteristics. Highly qualified individuals are however an exception since they suffer a wage penalty for working in the sector. Furthermore the analysis shows that pay inequality is substantially lower in the hospitality sector and that it is not due to the relative characteristics of its workers and jobs.     

Inflation and relative price variability: Evidence for India

This study decomposes relative price variability into a component due to inflation and a component due to real factors. The empirical results for India suggest that real factors account for 55% and inflation accounts for 45% of the variability in relative price changes. The proportion of inflation induced relative price variability increases with the rise in inflation, implying that inflation has distortionary effects on the structure of relative prices. Further, larger part of variability in the relative price changes seems to have been generated by fluctuations in the relative prices of a few commodities. The sector wise analysis shows that the major share of total relative price variability is contributed by fluctuations in the prices of manufactured products. The more crucial inference that emerges from the empirical analysis is that the inflation rate at which variability of relative price changes is minimum is found to be 4.5%, which is consistent with the official threshold rate often claimed by the Reserve Bank of India.     

Decomposition approach for integrated intermodal logistics network design

The integrated intermodal logistics network design problem consists of determining terminal locations and selecting regular routes and transportation modes for loads. This problem was formulated using a path-based formulation and a decomposition-based search algorithm has been proposed for its solution. Computational results show that this approach is able to obtain optimal solutions for non-trivial problem instances of up to 150 nodes in reasonable computational times. Previous studies have only been able to obtain approximate solutions for network problems of this size. A few general insights about the effects of design parameters on solution characteristics were also obtained.     

Statistical analysis of inequality with decompositions: the Canadian experience

This study carries out a decomposition of Theil-entropy measures into a between-group component, based on factors such as education, age, gender, and marital status, and a component representing inequality within each group. We apply a bootstrapping technique to measures of inequality to enable statistical inference. Trends in household income inequality in Canada are investigated using data from 1991 to 1997 drawn from Survey of Consumer Finance. We find an evident trend toward increasing inequality of household incomes between the years 1991–1997, during which the economy was recovering from a steep recession. Although most of the increase in measured inequality is attributed to the `within-group' component, we find the change in `between-group' inequality to be significant for education, age, and marital status. First version received: May 2001/Final version received: September 2001     

中国区域金融发展差异的解释——基于劳动分工理论与Shapley值分解方法

中国区域金融运行严重失衡,对中国经济金融发展造成了不利影响。本文建立了一个基于劳动分工理论的、涵盖教育和创新的金融发展模型,并运用1992—2004年的省际面板数据估计出区域金融发展的协整方程。然后以协整方程为基础运用夏普里值(Shapley value)分解法对中国区域金融发展差异进行分解。研究发现,区域金融发展水平和商品交易效率、金融交易效率、投资品的生产弹性系数、地区人均受教育年限、社会福利水平之间具有稳定的协整关系。分解结果显示,各省市区之间经济地理条件和国家制度倾斜等方面的差异是形成区域金融发展差异的主要原因,其平均贡献率为39.78%;由于先行优势和试点效应,在金融改革活跃时期,这种影响更加显著。人均受教育年限是区域金融发展差异的第二大贡献因素,其平均贡献率为36.23%。商品交易效率与金融交易效率对区域金融发展差异也具有重要贡献,其平均贡献率分别为13.08%和8.96%。     

The effect of democracy on different categories of economic freedom

Many empirical studies conclude that democracy increases economic freedom. However, these studies use highly aggregated indices of economic freedom, which eliminates interesting information. The purpose of this paper is to study empirically how in developing countries different categories of economic freedom are affected by democracy, measured either as political rights or civil liberties. Democracy appears to have a positive effect on the economic freedom categories Government Operations and Regulations and Restraints on International Exchange, but no effect on the categories Money and Inflation and Takings and Discriminatory Taxation. That a high level of democracy would have a negative effect on economic freedom reform receives no support in this study. The robustness of the results to the model specification and extreme points is tested.     

中国金融周期与横向关联:时空双维度相结合视角

宏观审慎政策关注各金融子市场在时间维度上的金融周期和空间维度上的横向关联。本文结合时间维度与空间维度视角,使用股票市场、货币市场、房地产市场以及信贷市场的数据,测算2001—2019年中国金融周期和横向关联的波动特征、作用关系与频域叠加机理。研究结果表明:时间维度金融周期与空间维度横向关联的波动趋势具有一致性。我国金融周期长度约为10.33年,横向关联波动周期的长度约为10.58年。从作用关系上看,首先,我国房地产周期达到波峰后,会对股票市场和信贷市场产生较强的溢出效应。随后,股市周期达到波峰后,会向房地产市场和信贷市场产生较强的溢出效应。最后,我国信贷市场接受股票市场和房地产市场溢出后,信贷周期会逐渐达到波峰。从频域叠加机理的角度看,我国金融子市场间横向关联的波动主要由中低频波段驱动,中低频波段横向关联的持续期在2个月以上。     

The dynamics of efficiency and productivity growth in U.S. electric utilities

This study recognizes explicitly the efficiency gain or loss as a source in explaining the growth. A theoretically consistent method to estimate the decomposition of dynamic total factor productivity growth (TFP) in the presence of inefficiency is developed which is constructed from an extension of the dynamic TFP growth, adjusted for deviations from the long-run equilibrium within an adjustment-cost framework. The empirical case study is to U.S. electric utilities, which provides a measure to evaluate how different electric utilities participate in the deregulation of electricity generation. TFP grew by 2.26% per annum with growth attributed to the combined scale effects of 0.34%, the combined efficiency effects of 0.69%, and the technical change effect of 1.22%. The dynamic TFP grew by 1.66% per annum for electric utilities located within states with the deregulation plan and 3.30% per annum for those located outside. Electric utilities located within states with the deregulation plan increased the outputs by improving technical and input allocative efficiencies more than those located outside of states with deregulation plans.

中国外贸顺差的可持续性研究——基于价格、数量与广度的三元分解

外贸顺差的可持续性决定于外贸顺差的来源结构,本文首次提出了外贸顺差的三元分解框架,并利用中国1995-2007年HS92编码的六分位贸易数据,将中国外贸顺差分解为价格顺差、数量顺差与广度顺差,从而研究中国外贸顺差的可持续性。研究发现,数量顺差是中国外贸顺差的唯一来源,价格和广度都是逆差;数量顺差意味着能源和要素的大量投入,价格逆差会招致全球范围内的贸易摩擦;与中国相对应,德国持续外贸顺差的来源是数量顺差与价格顺差的均衡发展。由此可以判断,中国外贸顺差是不可持续的。