Given aggregate demand, a decrease in aggregate supply creates O a higher price level and a higher GDP level. O a lower price level and a higher GDP level. cost-push inflation O demand-pull inflation. D Question 11 The national debt is the difference between a nation's exports and imports of goods and services. the sum of the personal debt of all citizens in the United States. the cumulative effect of all past budget deficits and surpluses of the federal government O equal to the current size of the budget deficit. D Question 12 An increase in government spending by $100 would, if the MPC = 0.90, result in an increase in real GDP by $1,000 $9,000 $900 $190