This paper shows that small costs of changing nominal prices can lead to rigidities that cause highly inefficient fluctuations in real variables. As a result, aggregate demand stabilization can be very desirable even though the frictions that cause fluctuations in aggregate demand to have real effects are slight. Inefficient price rigidity arises because rigidity has a negative externality: rigidity in one firm's price increases the variability of real aggregate demand, which hurts all firms. The externality can be arbitrarily large relative to the private costs of rigidity.
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Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number
2171.
Length: Date of creation: Oct 1989 Date of revision: Handle: RePEc:nbr:nberwo:2171
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