期刊文献+
共找到6篇文章
< 1 >
每页显示 20 50 100
合理低价模式下评标价格指数模型的建立
1
作者 孙霄 刘茂野 《长江工程职业技术学院学报》 CAS 2014年第1期3-5,共3页
通过建立评标价格指数模型,结合已完工程信息数据库,计算出类似建设工程价格指数。由类似工程的造价指数来量化项目信息,并估算出投标项目的合理最低价。
关键词 评标 价格指数模型 价格指数 合理低价
下载PDF
广西居民消费价格指数的时间序列模型建立及其预测 被引量:1
2
作者 陈宇秋 梁鑫 黄若倩 《统计与管理》 2016年第3期40-42,共3页
准确分析CPI变动规律不仅可以帮助居民了解消费水平情况,还可以为国家经济宏观调控采取相应的措施提供依据,具有十分重要的意义.本文利用时间序列分析方法对广西居民消费价格指数(CPI)进行实证分析。对1978年至2011年广西居民年度消费... 准确分析CPI变动规律不仅可以帮助居民了解消费水平情况,还可以为国家经济宏观调控采取相应的措施提供依据,具有十分重要的意义.本文利用时间序列分析方法对广西居民消费价格指数(CPI)进行实证分析。对1978年至2011年广西居民年度消费价格指数数据进行分析,建立MA(1)模型;最后通过拟合值和真实值的比较,说明所建立模型具有较好的拟合效果,并利用所建模型对广西未来的居民消费价格指数进行预测,为广西的经济发展提供参考。 展开更多
关键词 时间序列模型 居民消费价格指数ARMA模型 预测
下载PDF
市场结构、价格竞争力与我国水果出口增长 被引量:8
3
作者 张晓恒 周应恒 祁玉雯 《华中农业大学学报(社会科学版)》 CSSCI 2016年第1期38-46,129,共10页
通过恒定市场份额(CMS)模型和价格指数模型,分析我国水果出口增长的动力以及有效避开生产成本上升的不利影响。结果表明,劳动力成本上升导致我国水果出口中传统的价格优势逐渐丧失,从而导致竞争力对我国水果出口增长的贡献率急速下降并... 通过恒定市场份额(CMS)模型和价格指数模型,分析我国水果出口增长的动力以及有效避开生产成本上升的不利影响。结果表明,劳动力成本上升导致我国水果出口中传统的价格优势逐渐丧失,从而导致竞争力对我国水果出口增长的贡献率急速下降并接近于零;我国与东盟各国全面建立自由贸易区,迅速开拓东盟市场,调整出口市场结构的举措极大地促进了我国水果出口增长,并且掩盖了竞争力下降的不良影响。据此,提出政府应该加大农业基础设施和机械化科研投入,引导科研组织培育市场需求增长较快的品种,加快自贸区建设进程等建议。 展开更多
关键词 水果出口 CMS模型 价格指数模型 竞争力
下载PDF
Effects of coal prices on merchandise prices in China 被引量:4
4
作者 Ding Zhihua Zhou Meihua Liu Yan 《Mining Science and Technology》 EI CAS 2011年第5期651-654,共4页
Coal is the principal form of energy used in China. Hence, coal price variations are expected to have some influence on merchandise prices. Monthly data from January, 2002, to October, 2010, were used to construct a v... Coal is the principal form of energy used in China. Hence, coal price variations are expected to have some influence on merchandise prices. Monthly data from January, 2002, to October, 2010, were used to construct a varying-parameter state space model, and an error correction model, to estimate the influence of coat prices on Chinese merchandise prices. The time lag and the dynamic relationship were determined from the data. A long term equilibrium relationship between coal price and the PPI, and the CPI, can be observed. The long term influence of coal price fluctuations on the PPI is 0.263%. The corresponding value for the CPI is 0.157%. The PPI shows an influence from coal price change in the first period of observation: by eight periods the influence is obvious, after which it diminishes. The effect of coal price change on the CPI is rather weak and has no long term memory. Analysis of variance shows a similar situation. The elas- ticity coefficient of coal prices on the CPI, or the PPI, fluctuates over the 2002-2004 period. From 2002 to 2007 the influence elasticity on the CPI declined and subsequently levelled off after 2009. 展开更多
关键词 Coal priceState space modelMerchandise pricePrice fluctuation
下载PDF
Static Model Classification Status: Taking Into Account Emerging External Factors
5
作者 Perminov G. I. 《Journal of Modern Accounting and Auditing》 2013年第6期798-807,共10页
Analysis of the problem of predicting bankruptcy shows that foreign and domestic models included only internal factors of enterprises. But the same indicators of internal factors in the rapidly changing external envir... Analysis of the problem of predicting bankruptcy shows that foreign and domestic models included only internal factors of enterprises. But the same indicators of internal factors in the rapidly changing external environment can lead to bankruptcy, and not in others. External factors are the most dangerous, because the possible influence on them is minimal and the impact of their implementation can be devastating. This paper focuses on the same factors to assess the impact of the macroeconomic indicators (extemal factors) on the parameters of static models predicting a local approximation of the crisis at the plant. To accomplish the purpose, a Spark set of 100 companies was compiled, including 50 companies which officially declared bankruptcy in the period of 2000-2009 and 50 stable operating companies with a random sample of the same time period. External factors were extracted from the Joint Economic and Social Data Archive1 The author compared two data sets: (1) microeconomic indicators--money to the total liabilities, retained earnings to total assets, net profit to revenue, Earnings Before Interest and Taxes (EBIT) to assets, net income to equity, net profit to total liabilities, current liabilities to total assets, the totality of short-term and long-term loans to total assets, current assets to current liabilities, assets to revenue, equity to total assets, and current assets to revenue; and (2) external factors--index of real gross domestic product (GDP), industrial production index, the index of real cash incomes, an index of real investments, consumer price index, the refinancing rate, unemployment rate, the price of electricity, gas prices, oil price, gas price, dollar to ruble, ruble euro Standard & Poor (S&P) index, the Russian Trading System (RTS) index, and region. The aim of the comparison results paging classes "insolvent" and "non-bankrupt" is achieved using two methods: classification and discrimination. In both methods, computational procedures are realized with the use of algorithms linear regression, artificial neural network, and genetic algorithm. In the 2-m model, data set includes both internal and external factors. The results showed that the inclusion of only the microeconomic indicators, excluding external factors, impedes models about two times. 展开更多
关键词 bankruptcy prediction external factors methods of classification and discrimination
下载PDF
基于VAR模型的轨道交通产业经济关联性研究 被引量:4
6
作者 罗建 黄宇 +1 位作者 李青青 薛锋 《综合运输》 2022年第8期71-79,共9页
轨道交通产业对区域经济发展具有重要支撑作用,是推动区域综合发展的坚实动力。基于投入产出和价格变动模型,运用轨道交通产业波及指数得到轨道交通产业对其他产业的经济影响,并根据轨道交通产业经济关联性分析结果,选取与其具有密切关... 轨道交通产业对区域经济发展具有重要支撑作用,是推动区域综合发展的坚实动力。基于投入产出和价格变动模型,运用轨道交通产业波及指数得到轨道交通产业对其他产业的经济影响,并根据轨道交通产业经济关联性分析结果,选取与其具有密切关联的交通运输设备、交通运输仓储和邮政两个变量,建立三变量间的VAR模型,定量测度了二者与轨道交通产业的经济关联性。结果表明,轨道交通产业对交通运输设备、交通运输仓储和邮政的冲击效果持续增长,对其他关联性产业具有较好的市场带动能力。最后提出优化轨道交通产业投入产出结构、畅通产业发展路径、防范产业波及风险等建议,促进轨道交通产业高质量发展。 展开更多
关键词 轨道交通产业 经济关联性 VAR模型 投入产出表 价格指数模型
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部