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This video will determine the shift in the demand curve for hamburgers in response to changes.
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Remember a few points when demand decreases, equilibrium price and quantity follow and the opposite is also true.
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There are four main causes of shifts which are over to the left, such as substitution and complement price changes, changes in income, changes in taste, and changes in expectations.
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So for a, we have that the price of tacos increases.
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So this is considered a situation of substitution.
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People may buy more hamburgers in response to the price of tacos increasing.
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So in the case of our demand curve, our demand curve is shifting to the right, meaning that everything moves over to the right and we have increase in purchasing in all price points.
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And so for b, we have that there is a hamburger sellers raise the price of their french fries.
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This is a complementary situation...