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Unverified50% confidenceFactExact time

三级价格歧视理论由阿瑟·庇古在1920年系统化,理论基础可追溯至19世纪法国经济学家朱勒·迪普伊的边际效用研究

1
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50%
Confidence
Long-term
Relevance
7/14/2026
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