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Misperceptions And Monetary Policy In A New‐Keynesian Model

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  • Jarkko P. Jääskelä
  • Jack McKeown

Abstract

This paper studies the consequences for the monetary policy design of information shortages on the part of the private sector. We model these shortages as exogenous shocks to expected income, which through an IS curve, disturb aggregate demand. We constrain policymakers to follow Taylor‐like rules but allow them to optimise coefficients: we find that the presence of misperceptions makes the optimised Taylor rule respond more aggressively to inflation and the output gap. We also find that if the policymaker is uncertain about misperceptions, then it is less costly to assume they are pervasive when they are not than the reverse. In other words, setting policy on the basis that the private sector is subject to misperceptions is a ‘robust’ policy.

Suggested Citation

  • Jarkko P. Jääskelä & Jack McKeown, 2006. "Misperceptions And Monetary Policy In A New‐Keynesian Model," Scottish Journal of Political Economy, Scottish Economic Society, vol. 53(5), pages 655-671, November.
    • Handle: RePEc:bla:scotjp:v:53:y:2006:i:5:p:655-671
    DOI: 10.1111/j.1467-9485.2006.00399.x
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