The Superiority of Contingent Rules over Fixed Rules in Models with Rational Expectations / Willem H. Buiter.

By:

Buiter, Willem H

Contributor(s):

National Bureau of Economic Research

Material type: Text

TextSeries: Technical Working Paper Series (National Bureau of Economic Research) ; no. t0009.Publication details: Cambridge, Mass. National Bureau of Economic Research 1981.Description: 1 online resource: illustrations (black and white)Subject(s):

E - Macroeconomics and Monetary Economics

Online resources:

Available additional physical forms:

Hardcopy version available to institutional subscribers

Abstract: The paper investigates the robustness of the proposition that in stochastic models contingent or feddback rules dominate fiped or openloop rules. Four arguments in favour of fixed rules are considere`. 1) The presence of an incompetent op malevolent policy maker. 2) A trade-off between flexibility and simplicity or credibility. 3) The New Classical proposition that only unanticipated (stabilization) policy has real effects. 4) The "time-inconsistency" of optimal plans in non-causal models, that is models in which the current state of the economy depends on expectations of future states. The main conclusion is that the "rational expectations revolution", represented by arguments (3) and (4) does not affect the potential superiority of (time-inconsistent) closed-loop policies over (time-inconsistent) open-loop policies. The case against conditionality in the design of policy must therefore rest on argument (1) or (2) which predate the New Classical Macroeconomics.

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Holdings
Item type	Home library	Collection	Call number	Status	Date due	Barcode	Item holds
Working Paper	Biblioteca Digital	Colección NBER	nber t0009 (Browse shelf(Opens below))	Not For Loan

Total holds: 0

December 1981.

The paper investigates the robustness of the proposition that in stochastic models contingent or feddback rules dominate fiped or openloop rules. Four arguments in favour of fixed rules are considere`. 1) The presence of an incompetent op malevolent policy maker. 2) A trade-off between flexibility and simplicity or credibility. 3) The New Classical proposition that only unanticipated (stabilization) policy has real effects. 4) The "time-inconsistency" of optimal plans in non-causal models, that is models in which the current state of the economy depends on expectations of future states. The main conclusion is that the "rational expectations revolution", represented by arguments (3) and (4) does not affect the potential superiority of (time-inconsistent) closed-loop policies over (time-inconsistent) open-loop policies. The case against conditionality in the design of policy must therefore rest on argument (1) or (2) which predate the New Classical Macroeconomics.