標題: Economics Concepts Videos By The Business Economics Tutor. [打印本頁]

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作者: EusebiaLow    時間: 2026-9-7 05:44     標題: Economics Concepts Videos By The Business Economics Tutor.

Earnings elasticity of need (YED) is a step of the responsiveness of demand for a provided excellent to the change in earnings, ceteris paribus.

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