15.Suppose you observe that the equilibrium price and quantity of
athletic shoes has risen in the last year. A possible explanation
for this would be:
- A reduction in the cost of materials used in making the shoes.
- An increase in the fashionability of athletic shoes.
- A decrease in the price of other kinds of shoes.
- An increase in wages of shoe factory workers.
- An increase in the price of athletic socks.
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