57) choose the correct option: 1.If apples and oranges are substitutes, an increase in the price of apples will decrease the demand for oranges.

58) choose the correct option:1.The law of supply states that an increase in the price of a good increases the quantity supplied of that good along its supply curve. 2.An increase in the price of stee

59) choose the correct option: 1.The market supply curve is the horizontal summation of the individual supply curves.

60) choose the correct option:1.If Coke and Pepsi are substitutes, an increase in the price of Coke will cause an increase in the equilibrium price and quantity in the market for Pepsi. 2.An advance in the technology employed to manufacture rolle

61) A perfectly competitive market has