Price transmission between products at different stages of manufacturing in forest industries

The theory of demand and supply implies a positive relationship, or “price transmission” between the prices of products at different stages of manufacturing. This relationship was investigated with quarterly prices of softwood stumpage in the US South, and national prices of forest products, from 1977 to 2002. All prices, net of inflation, were found to be nonstationary and there was no evidence of co-integration between prices. Vector autogressive models, augmented by Granger causality tests and multiplier analysis showed that there was a one-to-one permanent positive response of the southern sawtimber stumpage price to a permanent change in the national lumber price. There was also a one-third permanent positive response of the national paper price to a permanent change in the national pulp price. There was no relation between regional pulpwood prices and national pulp or paper prices. When price transmission was significant, the full adjustment took about 2 years.     

黑龙江省耕地非农化与经济发展的Granger因果关系研究

研究目的:分析黑龙江省耕地非农化过程的内在原因,以助于协调黑龙江省耕地非农化进程与经济发展的关系,使耕地保护工作与未来经济运行相一致。研究方法:运用Granger因果关系检验法,利用Eviews4.1软件分析。研究结果:城市化进程对耕地非农化进程的影响与经济增长对耕地非农化的影响并不一致,城市化进程对耕地非农化的影响更加显著。因此,要从根本上解决耕地非农化与经济发展之间的矛盾须将城市化作为切入点。     

美国房地产泡沫、世界经济不平衡与金融危机——兼驳金融危机根源外部论

对于世界经济不平衡与金融危机的关系,存在两种不同的观点:一种观点认为世界经济不平衡是金融危机产生的根源,顺差国庞大的过剩储蓄最终引发了金融危机;而另一种观点则认为愈演愈烈的世界经济不平衡却并不必然造成金融危机,而是同金融危机一样,根源于美国国内经济的某些扭曲。两者差别在于将危机的根源归于外因还是内因。本文通过理论分析与格兰杰因果实证检验,否定了危机根源外部论,并证明了后一种观点:美国房地产泡沫(美国国内经济扭曲的重要表现)在造成金融危机的同时,促进了世界经济不平衡的扩大。     

城市住宅价格与宏观经济变量的关系分析——基于VAR模型的实证研究

通过分析选取住宅价格指数(HPI)、国内生产总值增长率(GDP)、1-3年期银行贷款利率(IR)作为内生变量,滞后两期的广义货币供应量(M2)作为外生变量,建立了向量自回归模型。并在此基础上,运用协整分析、脉冲响应函数、方差分解和格兰杰因果检验等研究方法对住宅价格指数与宏观经济变量之间的动态相关关系进行了研究。研究结果表明,我国的住宅价格与所选用的宏观经济变量之间存在一定交互响应作用,并就此提出了相关建议。     

上海市外贸发展与经济增长关系实证研究

通过统计计量分析发现,上海对外贸易规模较大且增速较快,对外贸易与经济增长关系密切,二者存在长期稳定的均衡关系,外贸总额或者进口额每增长1%,则GDP将增长0.5%以上。但是,外贸总额、出口额、进口额增长并不是上海经济增长的格兰杰原因,恰好相反,经济增长是短期外贸总额、出口增长的格兰杰原因。     

论常规兵器试验的风险管理

文章分析了常规兵器试验风险的特点以及风险管理的重要意义;根据GJB5852—2006《装备研制风险分析要求》、GJB9001B-2009《质量管理体系要求》和风险管理的相关理论,结合工作实际,探讨了常规兵器试验风险管理的具体方法和程序。可为常规兵器试验组织及人员提供借鉴与参考,以达到提高风险管理水平的目的。     

浙江省城乡统筹与经济发展关系实证研究

目前,浙江省经济发展水平不断提升,而城乡统筹状况却随经济发展而逐步恶化,城乡差距不断扩大。根据脉冲响应分析,城乡统筹水平在受到经济发展水平的一个标准差冲击之后,水平值下降,并逐年增大,说明经济发展在一定时期内会加剧城乡差距的扩大;经济发展水平在受到城乡统筹水平的一个标准差的冲击后,冲击效应为负,说明城乡差距扩大反过来会阻碍经济的发展;因此,两者之间虽然发展趋势相反,但存在互动的关系。     

Information flows within and across sectors in Chinese stock markets

We examine the patterns of information flows within and across sectors of the two Chinese stock exchanges in Shanghai and Shenzhen during 1994–2001. Using the generalized forecast error variance decomposition, we find a high degree of interdependence, indicating that the sectors are highly integrated and sector prices reflect information from other sectors. Industry is the most influential sector in both exchanges, while Finance in Shenzhen is the least integrated with other sectors. Implications of the findings for investors and policymakers are also discussed.     

Testing export-led growth in Bangladesh in a multivarate VAR framework

Although the link between trade and growth has long been discussed, systematic empirical investigation of the relationship has been undertaken only relatively recently. A number of time-series studies exist for individual countries in the area of export-led growth, but for Bangladesh there has been little work in this area. This study seeks to bridge an important gap in the literature, and is perhaps the first to use Johansen's multivariate framework taking the terms of trade as an additional variable for Bangladesh. The findings suggest that the direction of both long and short-term causality is from income to exports. This result is hardly surprising as, for most of the period covered, Bangladesh has followed an inward-looking strategy of development that discriminated against exports.     

公开市场业务有效性的实证检验

本文选取了2004年～2006年我国公开市场操作中的央行7天正回购利率、三个月期央行票据发行利率和1年期央行票据发行利率,以及相对应时期的货币市场利率和中期国债利率,对其进行了统计分析、协整检验和因果关系检验,以此研究公开市场业务对我国市场利率的影响,研究我国公开市场业务的有效性和局限性.