Does the Expectations Trap Render the Natural-Rate Model Invalid in the Disinflationary Zone?

Robert Leeson

Cambridge Journal of Economics, 1997, vol. 21, issue 1, pages 95-101

Abstract: This paper questions the validity of the natural-rate expectations augmented Phillips curve (N-REAP) model by examining the concept of an 'expectations trap.' If a Phillips curve becomes horizontal at higher levels of unemployment--as it did in the curves derived from a century of data by A. W. H. Phillips and R. G. Lipsey--then policy-induced increases in unemployment can reduce neither inflation nor inflationary expectations. The expectations trap, therefore, tends to render the policy conclusions derived from the N-REAP model either invalid or intolerably slow in the disinflation region. Copyright 1997 by Oxford University Press.

Date: 1997

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