Economic growth is measured by the __________. a.) changes in taxation due to fiscal policies b.) change in real GDP over time c.) changes in the unemployment rate over time d.) growth in the skilled labor forceWhich statement refers to a practice or situation that is NOT economically sustainable? a.) The economy being at less than full employment b.) The increase of productivity by new inventions with the same amount of raw material c.) The production of more goods by using more inputs d.) Current levels of output being maintained indefinitely