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首页> 外文期刊>International economic review >PRICE SEARCH, CONSUMPTION INEQUALITY AND EXPENDITURE INEQUALITY OVER THE LIFE -CYCLE
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PRICE SEARCH, CONSUMPTION INEQUALITY AND EXPENDITURE INEQUALITY OVER THE LIFE -CYCLE

机译：价格搜索，消费不平等和生命周期的不平等

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摘要

We differentiate consumption from expenditure by incorporating price search decision into an otherwise standard life-cycle model. We first analytically show that, under very general conditions, poorer households search more and pay lower prices compared to wealthier ones. As a result, consumption inequality is smaller than expenditure inequality, and the gap between them increases over the life-cycle. Next, using a plausibly calibrated model, we find that life-cycle increase in consumption inequality is about 30% lower than the increase in expenditure inequality. Price search provides an insurance mechanism against income shocks and increases the welfare of a newborn by 3.9%.
机译：我们通过将价格搜索决定纳入另一种标准的生命周期模型来区分消费。 我们首先分析表明，在非常一般的条件下，与富裕的人相比，较贫穷的家庭搜索和支付更低的价格。 结果，消费不平等小于支出不等式，而且它们之间的差距增加了生命周期。 接下来，使用合理的校准模型，我们发现消费不平等的生命周期增加大约低于支出不平等的增加约30％。 价格搜索为收入冲击提供保险机制，并增加了3.9％的新生儿的福利。

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