If the long-run aggregate supply curve is vertical,
A) the economy stays at the natural rate of inflation in the long run.
B) the short-run Phillips curve must be vertical.
C) unemployment and inflation are positively related in the long run.
D) the trade-off between unemployment and inflation cannot be permanent.
Hurricane Katrina destroyed oil and natural gas refining capacity in the Gulf of Mexico.
This subsequently drove up natural gas, gasoline, and heating oil prices. As a result, this
should
A) shift the short-run aggregate supply curve to the left.
B) shift the short-run aggregate supply curve to the right.
C) move the economy up along a stationary short-run aggregate supply curve.
D) move the economy down along a stationary short-run aggregate supply curve.
For the federal deficit to be lowered,
A) the federal government must decrease its spending and increase net exports.
B) the federal government’s expenditures must be lower than its tax revenue.