The multiplier effect a. diminishes the effects of an increase in government expenditures, while the crowding-out effect amplifies the effects. b. and the crowding-out effect both amplify the effects of an increase in government expenditures. c. and the crowding-out effect both diminish the effects of an increase in government expenditures. d. amplifies the effects of an increase in government expenditures, while the crowding-out effect diminishes the effects.