| 单词 | homotheticity |
| 释义 | homotheticity The property of a family of curves that their shapes are all the same. If a family of indifference curves or isoquants f(x, y) is homothetic, the gradient dy/dx at any point depends only on the ratio of y to x and not on their absolute size. Many widely-used functions including the Cobb-Douglas function and constant elasticity of substitution (CES) functions have this property. It is contrasted with heterotheticity, the property of families of curves where size and shape are not independent. |
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