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QUESTION 10 If unemployment is above its natural rate, what happens to move the economy to long-run equilibrium? O a. Inflation expectations rise, which shifts the short-run Phillips curve to the left. O b. Inflation expectations fall, which shifts the short-run Phillips curve to the left. O c. Inflation expectations rise, which shifts the short-run Phillips curve to the right. O d. Inflation expectations fall, which shifts the short-run Phillips curve to the right. QUESTION 19 If taxes fall, then aggregate demand shifts Oa. left, making unemployment higher than otherwise. O b. right, making unemployment higher than otherwise. O c. right, making unemployment lower than otherwise. Od. left, making unemployment lower than otherwise