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Changes in total revenue under perfect elasticities .

於完全弹性下总收的转变。

The coming year will tell retailers and manufacturers a lot about whether the price elasticities of goods sold in shops have really changed .

明年，零售商和制造商将知道在商店出售的货物价格弹性是否真的发生了变化。

Estimating trade elasticities : demand composition and the trade collapse of 2008-09 .

估计贸易弹性：需求构成及2008-09年贸易崩溃。

But deciding what to charge requires careful analysis of such things as break-even points and price elasticities of demand-how buying habits change after a price rise or a discount .

但是定价之前需进行盈亏平衡和需求的价格弹性分析，即提价或打折后购买习惯会发生什么变化。

Devaluation will worsen the trade balance if the sum of the two elasticities is less than 1 .

如果需求弹性等于1,贬值将是贸易差额恶化。