What is price elasticity of demand?
何谓需求的价格弹性？
How is the price elasticity of supply calculated?
供应的价格弹性如何计算？
Where the price elasticity of demand is less than 1.
需求价格弹性绝对值小于1的情况。
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？
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。
METHODS: the theory of price elasticity in economics was applied for the analysis.
方法：运用经济学中的弹性理论进行分析。
METHODS: the theory of price elasticity in economics was applied for the analysis.
方法：运用经济学中的弹性理论进行分析。
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