Abstract
This paper examines optimal monetary policy in a new Keynesian model with sectoral inflation persistence. It focuses on the welfare differential between timeless perspective (TP) and a purely discretionary monetary policy. Sectoral inflation persistence renders the central bank’s optimization problem more complicated under both cases of constant elasticity of substitution consumption index and generalized rule-of-thumb price setting. We find that there are substantial gains from employing a TP policy. This paper addresses the fact that this gain is robust with any changes in key structural parameters.
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