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Based on the above graph, which of the following scenarios could result in a change in equilibrium price from $P1$ to $P2$?
Blue jeans are a normal good and incomes increase, and the price of cotton, used to produce denim, increases.
Blue jeans become more popular, and the number of companies manufacturing blue jeans increases.
Blue jeans are an inferior good and incomes increase, and the cost of producing blue jeans decreases.
The price of t-shirts, a complementary good for blue jeans, increases, and the wages of blue jean laborers increases.
The price of yoga pants, a substitute good for blue jeans, increases, and the wages of blue jean laborers decrease.