Abstract There is generally a need to deal with quality change and new goods in the consumer price index due to the underlying dynamic item universe. Traditionally axiomatic tests are defined for a fixed universe. We propose five tests explicitly formulated for a dynamic item universe, and motivate them both from the perspectives of a cost-of-goods index and a cost-of-living index. None of the indices that are currently available for making use of scanner data satisfies all the tests at the same time. The set of tests provides a rigorous diagnostic for whether an index is completely appropriate in a dynamic item universe, as well as pointing towards the directions of possible remedies. We thus outline a large index family that potentially can satisfy all the tests.

中文翻译：

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测试动态商品宇宙中的价格指数

摘要由于潜在的动态物品世界，通常需要处理消费者价格指数中的质量变化和新商品。传统上，公理测试是为固定的宇宙定义的。我们建议为动态物品宇宙明确制定五项测试，并从商品成本指数和生活成本指数的角度来激发它们。当前没有可用于利用扫描仪数据的索引同时满足所有测试。这组测试提供了严格的诊断方法，用于确定索引在动态项目范围中是否完全合适，以及指向可能的补救措施的方向。因此，我们概述了一个可能满足所有测试要求的大型索引族。