Over time the fact that some people buy less hamburger at 69 cents per pound than at 89 cents per pound refutes the law of downward-sloping demand.

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The fact that some people buy less hamburger at 69 cents per pound than at 89 cents per pound is consistent with the law of downward-sloping demand, which states that as price increases, quantity demanded decreases (assuming all other factors remain equal). The law does not state that every individual will always buy less at a lower price, but rather that, on average, as the price decreases, the quantity demanded will increase.

Over Time the Fact That Some People Buy Less Hamburger