8.Suppose you observe that the equilibrium price and quantity of "sports sandals" has risen in the last year. A possible explanation for this would be:
  1. An increase in the "hipness quotient" of "sports sandals".
  2. A reduction in the cost of materials used in making the sandals.
  3. A decrease in the price of other kinds of shoes.
  4. An increase in the wages of shoe factory workers.
  5. A decrease in the wages of shoe factory workers.


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