需求弹性

Define the price elasticity of demand and the income elasticity of demand.

定义需求的价格弹性和需求的收入弹性。

Price elasticity of demand is calculated as the percentage change in quantity demanded divided by the percentage change in price.

如果需求曲线是富有弹性的，如果需求曲线是富有弹性的，总收益随着价格的上升而减少。

In a simultaneous equations framework we provide estimates of income and price elasticities of demand and price elasticity of supply.

我们从耐用消费品需求与供给的标准理论出发，在联立方程框架下估计城镇住房的需求与供给方程，得到了需求的收入与价格弹性及供给的价格弹性的估计值。

What are her income elasticity and price elasticity now?

现在的需求的收入弹性和需求的价格弹性呢？

Hereafter, this paper analysis the prophase system and forecast the flexible demand of it. According as the uncertainty of land-use demand, we can figure out the upper and lower limit of the interzone. Thereby, we can confirm the range of it.

然后分析了土地利用弹性规划体系的前期系统，对土地利用的需求进行了弹性预测，依据土地需求量的不确定性，计算出土地弹性需求值域的上下限，确定弹性范围。

Meanwhile, through the sensibility analysis, it is concluded that the rational charging rate tend to decrease with the increase of the design accessibility and the price-demand elasticity and the decrease of service level.

同时，通过敏感性分析，可以得到随着设计通行能力的增加、价格需求弹性的增加和服务水平的降低，合理的收费费率有减小趋势。

Secondly, this paper set up the diffusion model of innovation incorporating price, advertising and distribution, and given the optimal diffusion equation and characterized qualitatively optimum price, advertising and distribution. Furthermore, it studied the ratio relations among the advertising elasticity of demand and the price elasticity of demand and the distribution elasticity of demand. Finally studied the influence of marketing mix variables to the technology diffusion.

然后建立了含商品定价、广告费用和销售费用等的技术创新扩散模型，给出了扩散最优方程和商品价格、广告费用和销售费用的最优曲线，进一步地，本文分析了广告费用对需求的弹性、商品定价对需求的弹性以及销售费用对需求的弹性之间的比例关系，探讨了这些外部市场变量对创新扩散的影响。

Price elasticity demand measuring system, which is set up according to plural linear regression, can help us find the lineal relation between the product demand and product prices.

根据多元线性回归理论建立的需求弹性测量系统模型能够帮助我们确定产品的需求量与自身产品价格和竞争产品价格之间的线性关系。

Public products and private products are not defined strictly and can not be transferred so meteorological information products as quasi-public products can ...

由于公共产品与私人产品之间并不是严格界定而不能转化的，因此作为准公共产品的气象信息产品在技术水平、市场范围、需求弹性发生变化的条件下可以向私人产品转化。

As he discusses, this implies that the true price elasticities of demand are larger than the estimated exchange rate coefficients.

由于他讨论，这意味着真正的价格需求弹性大于估计汇率系数。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。