Debt, growth and inflation in large European economies: a vector auto-regression analysis

This paper attempts to empirically test the hypothesis that whether debt matters in the EU. This has been performed by examining the potential adverse effects of debt in large European economies on investment, inflation and growth. Using the hybrid cointegration and vector autoregressive models, the findings, based on the period 1970–97, suggest that debt causes significant adverse effects on investment, but its impact on growth is not clear-cut. Moreover, debt appears to be inflationary in most cases in the long run, though produces no clear short run pattern on inflation.     

Cointegration and causality among the onshore and offshore markets for China's currency

China has taken steps to develop offshore markets for renminbi trading and to liberalize exchange-rate determination in its onshore market. We examine the interaction between onshore and offshore markets with attention to how the interaction has been affected by widening of the onshore trading band first in April 2012 and further in March 2014. Ties between the onshore and offshore markets were closest before the first band widening and steadily loosened thereafter. We further study the cointegration and lead-lag effects between offshore and onshore spot and forward markets and show that there is a long-term equilibrium relationship between any pair of them. Our results suggest stronger causality running from the spot onshore rate to the spot offshore rate than vice versa. Between the spot and forward markets, there is evidence of bidirectional linear and nonlinear causality, which implies foreign impulses have had an influence on the domestic market.     

民营企业出口对湖南经济增长影响的实证分析

近年来,湖南民营企业出口贸易的快速发展,为湖南经济的增长做出了积极的贡献。本文采用计量经济模型实证分析了湖南民营企业出口与湖南经济增长的相关性,揭示出湖南民营企业出口对湖南经济增长做出了突出的贡献,并由此提出了扩大湖南民营企业出口的策略。     

动量化货币的哲学原理与经济学实验

运动是宇宙物质的普遍存在方式,货币的基本特征是运动。笔者尝试把物理学的动量定理与经济学的交易方程式进行类比,将货币量与货币速度结合起来,建立了动量化货币的指标。对动量化货币、传统货币与货币服务指数(圣路易斯联邦储备银行的指数货币)进行的经验分析表明:动量化货币具有绝对的比较优势;货币的交易速度是重要的宏观经济变量;货币的重要性依赖于它的数量和速度。主流经济学派排斥货币的交易速度,是经济理论的重大失误。     

Do Vietnamese upland farmers benefit from high world market prices for maize?

For rural households in the north of Vietnam, maize cropping is the main source of income. In the face of the world market price increases of the recent past, we analyze the regional marketing chain of this commodity qualitatively and econometrically investigating to what extent smallholder farmers in developing countries are affected by international price movements. Vietnamese maize markets are found to be well integrated. Recent price hikes have fully transmitted along the regional supply chain so that farmers profited. Nevertheless, adverse factors such as increasing input prices have neutralized these benefits resulting in a decline in real income of smallholders.     

权证隐含波动率在标的证券波动率预测中的作用研究

资产收益的波动是投资者投资决策的主要依据.本文选取了葛州和长虹等七只权证作为样本.首先应用单位根检验,验证各样本历史波动率和隐含波动率序列的平稳性,在此基础上检验各样本两种波动率序列的协整关系.最后,对隐含波动率所包含的额外信息进行探讨.结果表明,已实现波动率和隐含波动率基本上呈现单位根状态,并且两者之问基本不存在协整关系,权证的隐含波动率确实拥有额外的信息.投资者在实际运作中,可以加入隐含波动率来提高对实际波动率预测的准确性.     

我国四大城市住宅价格与租金的关系研究

近20年,我国城市住宅价格经历了大幅下跌与上涨,而同期租金逐年下降,房价与租金之间的关系令人关注。本文利用1993年第二季度至2010年第一季度的数据进行实证分析,结果表明北京、上海、广州和深圳的租金指数和房价指数之间不存在协整关系,说明住宅市场价格与租金不存在长期均衡关系,房价严重脱离了租金这一基本面的影响,不再遵循现值理论模型所揭示的两者之间的运行趋势,表明房价泡沫在长期积聚。为了预防市场泡沫破灭对经济体造成的严重冲击,政府应该严格监察与调控房地产市场。     

陕西省城市化与城市资源压力的协整检验与因果分析

本文从人口、经济、社会、地域景观四个方面,构建陕西省城市化水平综合评价指标体系,时陕西省城市化水平进行综合测度;同时,构建资源压力指数对陕西省城市资源压力进行定量评价,并对其关系进行了协整检验和格兰杰(Granger)因果检验.结果表明:①1990～2009年期间陕西省城市化综合水平持续提高;②城市资源压力指数与城市化...     

Bayesian inference in cointegrated systems

In this paper I deal with Bayesian methods for conducting inference on important features of (potentially) cointegrated VAR models involving I(1) variables. Firstly, (informal) inference is made on the cointegrating rank of the system. Secondly, posterior analysis is used to verify the validity of over-identifying restrictions on the cointegration parameters. Thirdly, posterior distributions are obtained for impulse response functions and predictive densities at different horizons. The relevant posterior distributions are obtained by means of Monte Carlo integration. The analysis is based on the use of simple weakly informative priors. Two applications on simulated data and on the Danish money demand data are presented.     

汇率与中国对外出口关系的实证研究

运用Granger因果检验以及协整、误差修正模型、多元回归模型等计量经济学分析方法,对中国内资企业出口与汇率的关系进行实证分析,得出的主要结论是:实际有效汇率与中国企业内资出口间没有因果关系,并且无论在长期和短期实际有效汇率的变动都不能有效地解释内资出口的变动,说明人民币汇率的变化对内资出口影响非常小。国际上因为贸易逆差而指责中国的汇率政策,其理由是不充分的。