Indicate whether each of the following changes will increase or decrease the equilibrium price and quantity, or whether the effect cannot be predicted. event equilibrium price equilibrium quantity a. demand increases; supply remains constant. b. supply increases; demand remains constant. c. demand decreases; supply remains constant. d. supply decreases; demand remains constant. e. demand increases; supply increases. f. demand decreases; supply decreases. g. demand increases; supply decreases. h. demand decreases; supply increases.