If an economy is operating at a point outside the PPC, either the society has resources that are not being fully used or production is not efficient

If the economy receives an influx of new workers from immigration,

A) we will move down along the long-run aggregate supply curve. B) we will move up along the long-run aggregate supply curve. C) the long-run aggregate supply curve will shift to the right. D) the long-run aggregate supply curve will shift to the left.

A central bank can control the real interest rate precisely, so long as ________ remains constant

A) the nominal interest rate B) monetary policy C) expected inflation D) all of the above E) none of the above