Informational Implications of Interest Rate Rules.

This paper compares interest rate and money supply rules. The analysisis conducted within a rational expectations macro model that incorporates flexible prices and informational frictions. With differential information, interest rate targets can affect the information content of market prices and real activity, but these realconsequences can always be replicated by an appropriately chosen moneystock rule with feedback to economic activity. However, when the policyauthority lacks information about the state of the economic system, itfaces a discrete choice between an interest rate peg and strict moneystock control. Copyright 1986 by American Economic Association.