The freedom of consumers to cast their dollar votes to buy, or not to buy, at prices determined in competitive markets describes:

When productivity growth has been rapid and then slows, the natural rate of unemployment is likely to ________

A) decrease B) be unaffected C) increase D) vary unpredictably

Suppose that a mixed open economy is producing at its equilibrium income and that net exports are zero. If at the equilibrium income the public sector's budget shows a surplus:

A. C a + I g + X n + G must exceed GDP. B. planned investment must exceed saving. C. a recessionary expenditure gap must exist. D. saving must exceed planned investment.