A consumer's downward-sloping demand curve for a good reflects the fact that the marginal utility of the good increases as more of it is consumed.

Question

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A consumer's demand curve is downward sloping because as the price of the good decreases, the consumer is willing and able to purchase more of it. This is due to the income and substitution effects. The marginal utility of the good may or may not increase with more consumption, as it depends on the individual consumer's preferences and the characteristics of the good.

A Consumer's Downward-Sloping Demand Curve for a Good Reflects the Fact