19 research outputs found

    The Research of China’s Inflation Inertia and Inflation Inertia Management

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    稳定物价是宏观经济管理的主要难题之一,也是政府管理层和学术界长期的研究热点。在全球经济一体化的宏观经济背景下,通货膨胀问题变得更为复杂。其中,通货膨胀惯性即物价总水平受到随机因素冲击上升又回复到均衡水平持续的时间,因不同的经济结构等因素而呈现很大的差异,这就决定了治理通货膨胀的宏观政策与经济成本也不同。因此,深入地探讨中国通货膨胀惯性的动态变化特征,揭示通货膨胀的动态变化过程,对于治理通货膨胀具有重要的理论价值与现实指导意义。 与国外对于通货膨胀惯性的研究相比,国内对中国通货膨胀惯性的研究相对较少,而且大部分研究均集中在中国通货膨胀惯性的静态测度和结构变化检验上,即利用统计检验方法检验中国通...As one of the main challenges of macroeconomic management, stabilizing prices is the focus of governments and academics in long-term. Under the macroeconomic background of global economic integration, inflation is more complex. When inflation is subject to random shocks, inflation inertia which is the speed that aggregate price level returns to equilibrium level, exhibits great difference for vari...学位:经济学博士院系专业:经济学院经济系_西方经济学学号:1532009015345

    汇率变动、流动性过剩与通货膨胀的动态关系

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    在开放经济条件下,汇率变动对一国通货膨胀具有重要的影响。本文利用状态空间方法研究了人民币汇率、流动性过剩与通货膨胀三者间的动态关系。研究结果表明,人民币升值对于通货膨胀的抑制作用有限,并且流动性过剩对通货膨胀的推动作用也有限。进一步的分析表明,在人民币升值背景下产生的流动性过剩,导致了市场的投机和炒作行为的出现,从而形成了市场的通货膨胀预期,最终推动通货膨胀。国家自然科学基金项目“不确定时域寡头竞争微分对策问题研究”(70771118)的阶段性成果之

    我国服务业技术进步偏向及其内在逻辑研究

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    根据服务业投入与产出的技术经济关系特性,利用隐函数方法对中国服务业技术进步偏向进行估算,并进一步分析中国服务业技术进步的演化规律及内在逻辑。研究结果表明:在考察期间中国服务...重庆市教委科学技术研究项目“大数据智能化驱动下重庆制造业服务化转型模式研究”(KJQN201800905

    中草药淫羊藿和菟丝子对日本鳗鲡卵巢发育的影响

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    在水温(21±1)℃下,给体重(592.5±52.5) g的日本鳗鲡(Anguilla japonica)雌亲鱼投喂每千克体重含0.034 g淫羊藿和0.034 g菟丝子浸膏的饲料90 d,对照组投喂人工配合饲料,研究淫羊藿和菟丝子对卵巢发育的影响。结果显示,饲料中添加淫羊藿和菟丝子的雌鱼卵巢大部分卵母细胞属第Ⅱ时相,性腺指数和肝体比均显著高于对照组(P<0.05);卵母细胞油滴明显增多,部分卵母细胞胞质已充满油滴,核仁变小增多;血清雌二醇(E2)和11-酮基睾酮(11-KT)水平显著升高(P<0.05),实验组11-KT含量约为对照组的4倍;肝脏卵黄蛋白原基因vtg表达量升高,实验组和对照组卵巢cyp19a1仅微量表达,肝脏未检测到erα和erβ的表达;实验组肌肉总脂肪酸、饱和脂肪酸(SFA)、单不饱和脂肪酸(MUFA)和高度不饱和脂肪酸(HUFA)含量均显著高于对照组(P<0.05),最主要的高度不饱和脂肪酸花生四烯酸(AA)、二十碳五烯酸(EPA)和二十二碳六烯酸(DHA)含量均显著高于对照组(P<0.05)。本研究表明,在亲鱼培育饲料中添加中草药淫羊藿和菟丝子促进了日本鳗鲡卵母细胞油滴和肝脏卵黄蛋白原增加,提高了肌肉高不饱和脂肪酸的积累,为卵黄生成和卵母细胞进一步发育做好更充分的准备。国家自然科学基金项目(41806193);;厦门市科技局项目(3502Z20133015);;鳗鲡现代产业技术教育部工程研究中心开放基金项目(RE201604,RE201503

    Biomedical Images Denosing with Texture and Detail Preservation Based on PDE

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    基于偏微分方程的医学图像去噪方法已公认为具有显著效果的去噪技术。常用的偏微分方程去噪方法虽然可以去除变化平缓的图像中的噪声,同时保持边缘结构信息,但对带有较多纹理细节的医学图像的去噪效果却不太理想。在对目前有关纹理医学图像理解和综合的基础上,介绍了三种纹理图像去噪技术。第一种自适应调整参数的全变分方法,在不同尺度空间下去噪,可保持纹理和细节;第二种将医学图像空间由bV空间上升到g空间以保持纹理;第三种使用多尺度分解噪声以保持细节特征。这些方法均能在实际应用中达到一定的效果,但是如何更好的去除噪声,文章对其进行分析,并提出新的改进思路。Biomedical images denosing based on partial differential equation are well-known for their good processing results.General denoising methods based on PDE can remove the noise of images with gentle change and preserve more structure detail of edges,but have a poor effectiveness on the denoising of biomedical images with many texture details.This paper attempts to make an overview of biomedical images texture detail denosing based on PDE.Three kinds of important image denosing schemes are introduced in this paper:one is image denosing based on the adaptive parameter estimation total variation model,which denosing the images based on muti-scale space;the other is using G norm to the perception of scale,which provides a more intuitive understanding of this norm;finial is multi-scale denosing decomposi- tion.These former can preserve more structure of biomedical images texture detail.Then this paper demonstrates the applications of the three kinds of methods.At the end,the future trend of biomedical images texture detail denosing based on PDE is pointed out.国家自然科学基金项目(60778046);福建省科技项目(2008I0015;2008J0016);卫生部科研基金项目(WKJ2008-2-046

    Empirical analysis of economic fluctuation cycle in China in the transitional period

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    改革开放以来,随着宏观经济政策的不断调整,中国的经济周期也在发生着变化。正确地把握中国经济周期波动的特点,对于国民经济的持续稳定发展具有重要的意义。文章采集了1978~2007年的21个宏观经济变量数据,采用HP滤波方法来分析改革开放后中国经济周期波动的特征,特别是1992年以后经济周期波动的事实。结果表明,1992年以后中国经济周期波动有了新的特征。With the constant adjustment of macroeconomic policies after the reform and opening-up,the economic cycle of China is changing.Correct understanding of the characteristics of China's economic fluctuation cycle is very important for the sustained and stable development of national economy.This article selects 21 macroeconomic variables,using HP filter to analyze the characteristics of China's economic fluctuation cycle between 1978 and 2007,especially between 1992 and 2007.The results show that there are some new characteristics with China's economic fluctuation after 1992.国家自然科学基金资助项目(编号:70771118

    Comparative Study on Agricultural Productivity between Mainland and Taiwan——Based on the DEA-Malmquist Index Approach

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    运用dEA—MAlMQuIST生产率指数测算了1995—2009年的海峡两岸农业全要素生产率变化指数,并分析了其时序增长和差异演化趋势。结果显示:虽然两岸农业生产率增长差距缩小,但增长的动力源不同,两岸农业增长方式仍存在根本区别。另外,大陆各省份吸引台商农业投资状况是导致其区域农业生产率不平衡增长的主要因素。未来,大陆应进一步密切两岸在农技创新和推广上的合作,加强两岸农业合作组织间的交流,同时引导台商在大陆农业投资由东部地区向中西部地区扩散。This paper uses the DEA-Malmquist index to measure the Cross-Strait agricultural total factor productivity index from 1995 to 2008,and analyze the temporal growth and trend of differential evolution.The results indicate that although the Cross-Strait agricultural productivity growth disparity reduces,the growth of power source and the growth are still fundamentally different.Moreover,the mainland various provinces that attract Taiwanese agricultural investment is the major factor which causes unbalanced growth of regional agricultural productivity.In the future,the mainland should promote further cooperation in the agricultural technology innovation and extension,and strengthen communication in agricultural organization between the two sides.Simultaneously the mainland should guide Taiwanese agricultural investment to spread from the eastern region to the central and western regions.福建省社科规划项目“后ECFA时期两岸合作与福建产业结构调整研究”(2011B194

    A Study of the Regional Effects of Tight and Easy Monetary Policies in China

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    将货币政策分解为紧缩性和扩张性,利用SVAr模型及脉冲响应函数对八大综合经济区的货币政策区域效应进行研究,结果表明,紧缩性和扩张性的货币政策均具有显著的区域效应,紧缩性货币政策的区域效应将更加倾向于加大区域经济发展不平衡的趋势。区域间的经济发展水平、金融结构、企业状况和居民的投资和消费倾向的差异,是导致了货币政策区域效应的主要原因。The paper categorizes monetary policies into tight and easy ones and empirically analyzes the regional effects of monetary policies among China' s eight regions with SVAR model and IRF.The results show significant regional effects of the tight and easy monetary policies in China.The regional effects of the tight monetary policy tend to enlarge the gap of regional economic development.The differences of the regional economic development,financial structure,company status and the propensities of investment and consumption are the main factors to cause the regional effects of monetary policies.国家自然科学基金资助项目(70771118

    Empirical Research on Technological Progress and the Evolution of Taiwan's Agriculture Growth from 1963 to 2008

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    本文运用超越对数模型对1963—2008年的台湾农业技术进步率进行测算分解,并分阶段探讨了其农业增长演替规律。结果发现:近50年来,台湾农业技术进步率和技术进步贡献率均呈稳定增长态势;台湾农业增长经历由资本主导到资本和技术进步双向驱动再到技术进步主导的嬗变,其农业增长方式已由粗放型转变为集约型。通过技术变迁来消除资源禀赋制约是未来台湾农业持续增长的最佳路径。The paper uses Translog model to calculate and decompose the Taiwan's agriculture technological progress rate from 1963 to 2008,and discusses its agriculture growth succession rule by stages.The results shows that Taiwan's agriculture technological progress rate and technological progress contribution rate have increased steadily in the recent 50 years;Taiwan's agriculture growth mode has been from the extensive into the intensive type as it experiences the capital leading to two-way drive of capital and technological progress and to the technological progress domination.In the future,it is the best path to eliminate the resource endowment restriction through the technological change for sustainable growth of agriculture in Taiwan.教育部人文社会科学重点研究基地重大项目“两岸农业交流与合作机制研究”(08JJDGAT250);教育部规划基金项目“台湾政党轮替后的两岸经贸合作”(08JAGAT002

    Imported inflation with the appreciation of RMB exchange rate——Empirical analysis based on recursive SVAR model

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    本文在探讨人民币汇率升值与输入型通货膨胀传导机理的基础上,通过建立递归SVAr模型,利用脉冲响应和方差分解方法,分析了输入型通货膨胀对我国通货膨胀的影响。研究结果表明:输入型通货膨胀不仅是影响我国通货膨胀的主要因素之一,而且其影响具有持久性的特征。因此,在控制我国通货膨胀的过程中,应采取降低和防范输入型通货膨胀影响的相关对策。Based on the discussion on the appreciation of RMB exchange rate and the transmission mechanism of imported inflation,we set up recursive SVAR mode l,use impulse response and variance decomposition method to analyze the influen ce of imported inflation on China's inflation.The results suggest that: imported inflation could be one of the main factors influencing China's inflation,and i t has lasting impact.As a result,in the control of the inflation in China,we should adopt related countermeasures to decrease and prevent the influence of im ported inflation
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