US consumer spending managed only a marginal rise of 0.1 per cent in June and July's data, due on Friday, will help to evaluate if this is part of a softer trend.

美国6月份的消费者支出仅上升了0.1%，将于本周五公布的7月份数据将有助于评估这是否构成走弱趋势的一部分。

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The consumer chooses consumption of the two goods so that the marginal rate of substitution equals the relative price.

消费者选择两种商品的消费以便边际替代率等于相对价格。

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Or rather, to be more accurate, the marginal cost to the consumer closer to the marginal cost of production for the producer.

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The increase in payroll tax decreases the amount of marginal dollars many consumer will have.

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In formal terms, the consumer has an incentive to spend until the marginal benefit of additional spending, or additional health care is zero, so different from an efficient market, where consumers spend until the marginal benefit is equal to the marginal cost.

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