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1.
宏观质量指数研究   总被引:2,自引:0,他引:2  
本文构建了宏观质量竞争力评价指标体系,并用因子分析法建立了宏观质量指数模型,探讨了宏观质量指数MQI与地区生产总值GDP之间的关系,并以我国某省六个地级市为例,进行了实证研究,研究表明,MQI与GDP之间具有显著的正相关性。  相似文献   

2.
在分析消费品伤害事件的不确定性因素基础上,研究消费品导致伤害的人因物因及环境影响因素并提出了伤害风险评估的维度,将各维度的输入值转化为模糊数,通过区间运算计算暴露时间及风险,从而为消费品质量安全因子的风险评估提供了方法基础,最后通过实例计算描述工具的特性.  相似文献   

3.
以经济增长质量的广义内涵为基础,从经济增长效率、稳定性、经济结构、福利变化与成果分配、资源环境以及国民经济素质等6个维度构建湖南省经济增长质量指数,运用主成分分析法(PCA)确定权重,对2000-2012年的湖南经济增长的质量进行了实证研究,在实证结论的基础上分析了影响湖南省经济增长质量的因素,总结湖南省经济发展方式转型道路上的优势与障碍以及机遇与挑战.结果表明湖南经济增长质量在2000-2012年间稳步提升.经济稳定性作为评价经济增长质量的六个维度之一,是影响湖南省经济增长质量改善的重要因素.湖南省政府必须加大产业结构和资本生产率调整力度,更好的改善农村的成果分配与福利.  相似文献   

4.
基于差异系数的多元过程能力指数   总被引:4,自引:1,他引:3  
过程能力指数表示过程能力满足产品质量标准的程度的评价指标,最普遍使用的过程能力指数有Cp、Cpk、Cpm、Cpkm等,它们已在各大工业部门得到了广泛的应用,但是多元质量特性的过程能力指数尚未得到很好的解决。许多学试图以不同的方式、方法计算多元质量特性的过程能力指数,但存在局限性。本以多元正态分布为基础,比较分析了每个质量特征的差异系数,给出了多元过程能力指数的计算公式。最后的一个算例表明,该方法是有效且符合实际的。  相似文献   

5.
中国宏观经济统计数据的真实性和数据质量一直以来饱受质疑,特别是2008年美国金融危机以来,更受到世界各国和许多国内研究者的批评.引进、鉴证并扩展了Benford法则的分布拟合和宏观统计数据的数据随机性质量评价能力,对我国统计系统公布的宏观统计数据进行了客观、真实和有效的评价.研究表明,在0.05的置信水平下,我国的国民经济核算、政府财政统计、金融业、国际收支平衡这四个宏观经济部门的主要经济指标不存在人为操纵和修正,统计数据质量有了显著提升.  相似文献   

6.
聚类分析在品牌市场定位研究中的应用   总被引:9,自引:1,他引:8  
利用统计技术对顾客感知质量和感知价格进行市场定位可以解决品牌市场定位中存在的一些问题。文章利用系统和迭代聚类分析对中国耐用消费品进行了市场定位实证研究,利用方差分析和交叉列表分析检验聚类的有效性并获得聚类的特性,利用多重对应分析进一步研究类别特征。结果显示,聚类具有有效性,中国耐用消费品品牌定位呈现十字型。最后文章提出一种市场定位研究的组合统计技术。  相似文献   

7.
社会消费品零售总额是反映人们消费水平的重要度量指标,也是国民经济体系中的一个重要评价指标.因此,分析研究社会消费品零售总额发展趋势对于转型期的中国经济高质量发展具有重要意义.基于乘积季节模型对2001年至2020年的社会消费品零售总额数据进行时间序列分析,经过差分、单位根检验、模型识别与拟合等过程,确定最终模型为ARIMA(1,1,1)(1,1,0)12,结果表明,社会消费品零售总额数据具有明显的线性趋势和季节性特征,并进一步得出其波峰和波谷到达的时间,另外,该模型对社会消费品零售总额有非常好的拟合效果,且有较高的预测精度.  相似文献   

8.
为了解决八大类消费品价格数据不易得到的难题,本文构建投入产出价格模型,分别经验研究25个省(自治区和直辖市)住房价格同时变动不同幅度对八大类消费品价格的影响。25个省(自治区和直辖市)消费品价格变动幅度结果即为QUAIDS模型中的消费品价格变量。然后,本文采用CFPS2010数据,在QUAIDS模型中加入反映家庭所在地区的人口特征变量,研究住房价格波动对自有住房家庭消费的区域异质性影响。研究结果表明住房价格波动对自有住房家庭生存型消费需求区域异质性影响的财富效应显著,而对享受型和发展型消费需求区域异质性影响的挤出效应显著。在此基础上,本文进一步运用补偿变动研究住房价格波动对自有住房家庭福利的区域异质性影响。研究结果表明为了提高自有住房家庭的生活质量和促进社会的和谐稳定,政府应该把稳定东部地区住房价格放在首位。且当遇到如何优化家庭消费结构问题时,政府应该根据地区差异划分市场。  相似文献   

9.
本文应用主成分析的基本方法,结合单质量特性的工序能力指数,给出了多质量特性的主成份的工序能力指数。  相似文献   

10.
基于改进的AR(1)-EGARCH(1,1)-M模型,从收益率和波动性两个方面考察各类宏观信息宣告对股票市场价格行为的影响.结果表明,居民消费价格指数和商品零售价格指数对股票市场的收益有负向影响;国内生产总值、社会消费品零售总额、公开市场操作利率变动率和企业景气指数对股票市场的收益有正向影响;公开市场操作公告会导致股票市场条件收益率显著增加;其余各类宏观信息因素对股票市场收益的波动性并不存在显著影响.  相似文献   

11.
There are clear benefits associated with a particular consumer choice for many current markets. For example, as we consider here, some products might carry environmental or ‘green’ benefits. Some consumers might value these benefits while others do not. However, as evidenced by myriad failed attempts of environmental products to maintain even a niche market, such benefits do not necessarily outweigh the extra purchasing cost. The question we pose is, how can such an initially economically-disadvantaged green product evolve to hold the greater share of the market? We present a simple mathematical model for the dynamics of product competition in a heterogeneous consumer population. Our model preassigns a hierarchy to the products, which designates the consumer choice when prices are comparable, while prices are dynamically rescaled to reflect increasing returns to scale. Our approach allows us to model many scenarios of technology substitution and provides a method for generalizing market forces. With this model, we begin to forecast irreversible trends associated with consumer dynamics as well as policies that could be made to influence transitions.  相似文献   

12.
首先根据电子商务环境下消费者需求的特点,在对多A gen t技术论述的基础上,建立了基于多A gen t的消费者需求代理系统.接着对系统具体工作流程进行了深入分析:先针对不同消费者建立相应的用户模型,以便为不同消费者提供效用最大化的产品或产品服务的组合,然后采用协商型A gen t,完成网上产品或服务的交易.最后提出了基于遗传算法的协商谈判策略,以提高消费者需求代理系统的协商能力.  相似文献   

13.
在“农超对接”背景下,以“农村合作社+超市”组成的二级供应链为研究对象,考虑消费者参考质量效应对需求的影响,利用微分博弈理论分别求得了成本分担契约、非合作以及集中决策三种情形下供应链双方的最优均衡策略及利润。研究发现:消费者参考质量效应能够激励农村合作社提高农产品质量水平,同时缓解了超市的广告宣传压力,使得超市的广告宣传水平降低;当商誉-参考质量转换程度较大时,决策者会选择以低商誉战略来维持消费者合理的农产品质量期望值,形成了农产品质量低,成员收入少的不良经营环境;成本分担契约不仅提升了农产品质量水平,同时也实现了超市和农村合作社双方利润的帕累托改善,能够缓解超市面对劣质农产品束手无策的不良局面。  相似文献   

14.
陈军 《运筹与管理》2020,29(10):68-75
质量分级是农产品实现优质优价的重要手段,但目前只有少数农产品实现了分级销售。基于消费者的质量优选行为,构建了生产商和零售商实施质量分级的博弈模型,分析了不同主体实施质量分级对产品最优定价及利润的影响。结论表明,农产品质量分级优于不分级;当高质量产品消费者的流失率低于临界值时,零售商质量分级能够实现供应链系统利润最大。据此,建议政府出台相关支持政策,鼓励零售商对农产品进行质量分级。  相似文献   

15.
Motivated by the observed industrial issues, we analytically develop a fashion supply chain consisting of one manufacturer and two competing retailers and investigate how retail competition and consumer returns affect green product development in fashion apparel. In the basic model, that is, the pure “product greenness level” game, we find that the optimal greenness level of the fashion product decreases along with the level of market competition. This finding implies that a more competitive market leads to a lower optimal greenness level. We also identify that when the consumer return rate increases, the optimal product greenness level is substantially reduced. In the extended model with joint decisions on greenness and pricing, we find that the optimal product greenness level for the whole channel is always higher in the scenario when both retailers charge a higher retail price than in the case with a lower retail price. As such, the underdevelopment of green fashion products is a result of fashion industry features, such as an extremely competitive environment for green product development, relatively low retail prices for fashion products, and high consumer return rates. Therefore, fashion companies should join a co-opetition game for the green product market and simultaneously enhance their efficiency in managing consumer returns. To support our analytical findings, we conduct extensive industrial interviews with various representative companies. Based on this multi-methodological approach (MMA), this paper generates practice-relevant managerial insights that not only contribute to the literature, but also act as valuable references for industrialists.  相似文献   

16.
Numerous studies have investigated dynamic pricing for perishable products. The models have been designed to determine an optimal pricing structure and improve retailer performance. Previous studies on pricing models for perishable products have considered various assumptions of consumer demand and purchasing behaviour from deterministic and stochastic price-dependent demands to myopic and strategic consumer purchasing behaviour. They have not, however, considered consumer demand in reaction to a situation where the display stock of a particular product has different qualities (such as shelf-life) and prices available at the same time. This is particularly applicable in the analysis of dynamic pricing models for perishable foods. In this paper, we investigate the impact of frequency of discount during a product’s selling period on retailer performance, by considering changes in consumer purchasing behaviour in response to the display stock of a particular food product having different remaining shelf-life and prices. On the basis of a literature review and data obtained from interviews with food retailers, a simulation study is performed to compare the performance of different pricing policies. The results demonstrate the benefits gained by adopting more dynamic price policies.  相似文献   

17.
质量调整的价格指数编制中hedonic插补法的应用   总被引:1,自引:0,他引:1  
在数据缺失的情况下,插补法是一种常用的推断缺失数据的方法。在价格指数的编制中,在基期存在的产品可能在报告期从市面上消失,或者报告期出现了新产品。这都可以看作是数据缺失的情形。同时由于前后时期产品质量发生变化,所编制的价格指数中可能包含"质量变化偏差"。Hedonic插补法将hedonic方法与缺失数据的插补方法结合起来,既处理了缺失数据,又克服了价格指数中的质量变化偏差。本文讨论了hedonic插补法的多种可能形式,并比较了各种方法的特点。本文还利用中国笔记本电脑的数据编制了hedonic插补价格指数,进行了相关的实证分析。  相似文献   

18.
We investigate the effect and the impact of predator-prey interactions, diffusivity and chemotaxis on the ability of survival of multiple consumer levels in a predator-prey microbial food chain. We aim at answering the question of how many consumer levels can survive from a dynamical system point of view. To solve this standing issue on food-chain length, first we construct a chemotactic food chain model. A priori bounds of the steady state populations are obtained. Then under certain sufficient conditions combining the effect of conversion efficiency, diffusivity and chemotaxis parameters, we derive the co-survival of all consumer levels, thus obtaining the food chain length of our model. Numerical simulations not only confirm our theoretical results, but also demonstrate the impact of conversion efficiency, diffusivity and chemotaxis behavior on the survival and stability of various consumer levels.   相似文献   

19.
Smart products not only provide novel functionalities, but also may establish new business models, markets, or distribution channels, strengthen relationships with consumers, and/or add smart remote services. While many technical obstacles of such products have already been overcome, the broad market dissemination of smart products still poses some vital managerial challenges for decision makers. In this paper, we outline the technical potential and future trends of smart consumer products, discuss economic challenges in four scopes, namely, preference-based new product development, market analysis, supply chain design, and industry development, and, in particular, we highlight research perspectives for management science in this promising field.  相似文献   

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