简介:<正>ThefourthAsiaBike,asthesistershowofEurobikeandthefirstprofessionaltradeshowonsportsbikemarketinChina,concludedonOctober12atNanjingInternationalExpoCenterinNanjing,capitalofeastChina’sJiangsuProvince.Thefour-dayshow,coveringatotalindoorexhibitionareaof38,000squaremetersandtheoutdoorsizeof10,000squaremeters,sawatotalof487brands
简介:<正>TheSixthChinaInternationalEcologicalCompetitiveConference2014washeldinYantai,ShandongduringOctober25-27.Themedin"ecology,urbanizationandsustainablecompetitiveness",theconferencecontinuetitspreviouspragmaticandinternationalstyleandstrivedtoreachanewlevel.Theconferenceorganizingcommitteeand
简介:TheYDT1625-11microphoneandTeyuerwall-screentypestereomusicalsystemismadebytheBeijingKingCatAcousticsEquipmentFactorywithmulti-patenttechnology.Itisnotedforitsthinness,fullrangeoffrequencybands,andlowdistortionThesuper-thingeontetricformoffersconvenienceforusers.Thefrequencybandscoverawideacousticfieldfromlowtohighfrequencies.Thedistortionislowerthantheinternationalfirststepindex,favourableforthedesignandmanufactureoftheacousticsystem.Thefinedrivingsystemraisestherigidityofthediaphragm,thevalueofdynamicandtheradiatingconditionsofexcitationsource.
简介:资本存量K是研究一国经济增长、投资效率以及全要素生产率(TFP)等宏观经济问题的基础。但我国各类统计中均没有直接给出该指标的相关数据。已有的研究大都集中在全国、省际层面,而对分行业的研究较少。即便有,多数也只是局限在工业或某单一行业的分析,缺乏行业间的总体分析和比较。本文基于我国官方发布的投入产出表中的相关数据,利用永续盘存法,通过行业的重新分解和合并,测算了1990~2014年我国8个行业的资本存量,并进而计算和比较了各行业的宏观投资效率。结果显示,1990年代中国的投资效率较高,但近年来我国各行业的投资效率有下降的趋势,并且不同行业间的投资效率存在一定的差异。