Estimating a Taylor Rule for New Zealand with a time-varying neutral real rate

L. Christopher Plantier () and Dean Scrimgeour

No DP2002/06, Reserve Bank of New Zealand Discussion Paper Series from Reserve Bank of New Zealand

Abstract: Many critics of the Taylor rule claim that it is inferior to inflation forecast based (IFB) rules because it is not forward-looking, is not aggressive enough, and because of uncertainty surrounding the output gap. Nevertheless, the Taylor rule serves a constructive purpose because it abstracts from the Bank's macroeconomic model, FPS, and its performance is robust across various economic models. The Taylor rule thus provides a useful cross-check to the IFB rule, whose recommendations necessarily rely on a particular model structure, its dynamics and specific judgements over the forecast horizon. Additionally, this paper contends that any interest rate rule or model must account for the fall in the ex-ante real interest rate and the non-stationarity of short-term rates in New Zealand. We show how the neutral real interest rate (NRR) in the Taylor rule drifts downward since the second quarter of 1988, and explain why this presents additional real-time difficulties for the Taylor rule.

JEL-codes: E52 E58 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-mon and nep-rmg
Date: 2002-05
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