| 41. | The counter-example was based on an asymmetrical utility function.
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| 42. | A Cobb-Douglas utility function implies that goods are independent.
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| 43. | A submodular utility function is characteristic of substitute goods.
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| 44. | A supermoduler utility function is characteristic of complementary goods.
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| 45. | But that depends on our individual utility functions.
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| 46. | Indifference curve analysis begins with the utility function.
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| 47. | This follows from continuity of the utility function.
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| 48. | All consumers have the same Cobb-Douglas utility functions.
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| 49. | Utility functions are also normally continuous functions.
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| 50. | Every additive utility function is weakly-additive.
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