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我国城市蔬菜价格波动的实证分析 被引量:2
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作者 黄修杰 储霞玲 +1 位作者 白雪娜 刘海英 《北方园艺》 CAS 北大核心 2017年第8期190-195,共6页
为了研究我国城市蔬菜价格波动趋势,了解影响蔬菜价格波动的主要因素,对全国36个大中城市居民的鲜菜消费价格指数进行分析,并选取大白菜、番茄、黄瓜、茄子、青椒5个蔬菜品种进行重点考察,利用X-12季节调整模型,将蔬菜价格的季节性因素... 为了研究我国城市蔬菜价格波动趋势,了解影响蔬菜价格波动的主要因素,对全国36个大中城市居民的鲜菜消费价格指数进行分析,并选取大白菜、番茄、黄瓜、茄子、青椒5个蔬菜品种进行重点考察,利用X-12季节调整模型,将蔬菜价格的季节性因素剥离,运用非对称误差修正模型(APT-ECM)模型验证蔬菜价格的非对称传导,从产业链价格传导视角研究这5种蔬菜的集贸市场价格波动。结果表明:2009—2014年,我国36个大中城市居民鲜菜消费价格指数总体呈上涨趋势,从95.6增长到134.8,年均增长7.1%;秋冬季节,蔬菜供给量全年最低,蔬菜价格上涨到最高水平;从产业链价格传递视角来看,全国蔬菜批发市场价格与集贸市场价格之间的价格传递具有非对称性,批发市场价格的波动将会导致下游集贸市场价格更大幅度的波动;蔬菜生产成本的推动、蔬菜生产的季节性、政府的宏观调控等是引起我国城市蔬菜价格波动出现以上特征的主要影响因素。 展开更多
关键词 蔬菜价格 波动 鲜菜消费价格指数 非对称传导 产业链价格传导
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Industrial transmission effect of international metal price shocks in perspective of industry chain 被引量:1
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作者 GAO Chuan HUANG Jian-bai +3 位作者 CHEN Jin-yu TANG Wen-yuan WANG Zhi-ping LIU Jing-xing 《Journal of Central South University》 SCIE EI CAS CSCD 2018年第12期2929-2943,共15页
Based on a new perspective of industry chain and selecting monthly data from February2006to December2015,this paper chooses eight Chinese industrial sectors to construct a SVAR model reflecting internal relationships ... Based on a new perspective of industry chain and selecting monthly data from February2006to December2015,this paper chooses eight Chinese industrial sectors to construct a SVAR model reflecting internal relationships among metal chains,analyzes the direct effects and indirect effects of international metal prices on output of various links in metal chains,then it investigates the main transmission path of international metal price shocks through decomposing the inflation pressure sources in metal chains.The results show that international metal price shocks not only affect industrial output in a direct way,but also indirectly affect the growth of output through the increased pressure on industrial inflation and then triggering a tightening of monetary policy implementation.Affected by factors such as the lack of market demand and the price transmission mechanism blocking,the direct effects of international metal price shocks mainly impact the upstream and midstream industry,while the downstream industry is mainly affected by indirect effects;in addition,the international metal price shocks have spillover effects on the industrial inflation,and transmit along the industry chain from upstream to downstream,and their strength weakens in sequence. 展开更多
关键词 international metal prices industry chain SVAR model transmission effect
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