Labor contracts that include so-called COLA provisions A: tend to link money wages to price increases B: serve to preserve the purchasing power of workers C: are a common form of wage indexation in many labor markets D: often tie nominal wages to a specific price index E: all of the above

My friend Pete has been out of work for six months and he is really . He’s used up his savings and can’t pay his rent or the payments he owes on his car.

The AS-curve is horizontal or very flat if A: additional resources (especially labor) can be hired to produce additional output with little or no increase in existing prices B: wages fall rapidly with an increase in unemployment, reducing spending and income to restore equilibrium C: firms lower wages less than prices to avoid a loss in profit during a recession D: the nominal wage adjustment occurs fairly rapidly E: nominal wages and prices always change proportionally, leaving the real wage rate unchanged

骗他交出了所有的积蓄 A: todeceivehim into handing over all his savings B: todeceiveallhissavings C: to cheat him into handing over all his savings D: tocheatallhissavings

Which of the following assumptions is crucial to the classical model but not the Keynesian model? A: The real wage always equals the marginal product of labor. B: Real wages are perfectly flexible. C: Nominal wages are perfectly flexible. D: Monetary policy primarily affects aggregate demand.