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All right, we're doing problem number 56 from chapter three.
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Supply and demand for movie tickets in a city are shown in table 3 .10, as you see in the right.
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Graph demand and supply and identify the equilibrium, then calculate in a table and graph the effect of the following two changes, which we'll discuss after we graph.
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So first, let's graph.
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Here is our price quantity.
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And so where's the equilibrium? the equilibrium is where quantity, demand, and quantity supplied intersect.
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21 at $8 per pound.
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So there's supply, there is demand, there is $8, and that was very poorly drawn, dashed line, there is 21 pounds.
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So, all right, now on to a, it's asking three new nightclubs open.
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They offer decent bands and have no cover charge, but as as a result, but make their money by selling food and drink.
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As a result, demand for movie tickets falls by six units at every price.
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So if demand is falling by six at every price, this quantity of demand is just going to go down by six at every price.
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So 26 becomes 20, 24 becomes 18, 22 becomes 16, 21 becomes 15, 20 becomes 15, 20 becomes 14.
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Where is our new equilibrium? it's here at $18 at $6 a pound.
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So let's graph that.
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Actually, i'll make this a tiny bit higher.
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Okay, here.
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Supply demand, price quantity...