New Goods and Index Numbers: U.S. Import Prices
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Researchers constructing index number frequently face the problem of new (or disappearing) goods, for which the price and quantity are not available in some periods. In theory, the correct way to handle a new good is to treat its price before it appears as equal to the reservation price (i.e., where
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美国国家经济研究局创建时间：
1991-02-01
