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The third strategy employed by the Bank when dealing with uncertainty is the consideration of appropriate simple reaction functions or "rules" for the setting of the policy interest rate. Since John Taylor's presentation of his much-discussed rule, research on simple policy rules has exploded. Simple rules have several advantages. In particular, they are easy to construct and communicate and are believed by some to be robust, in the sense of generating good results in a variety of economic models. This article provides an overview of the recent research regarding the usefulness and robustness of simple monetary policy rules, particularly in models of the Canadian economy. It also describes and explains the role of simple rules in the conduct of monetary policy in Canada.

In recent years, there has been a lot of interest in Taylor-type rules. Evidence in the literature suggests that Taylor-type rules are optimal in a number of models and are fairly robust across different models.

This article summarizes the proceedings of a conference hosted by the Bank of Canada in November 1999. Three major themes emerged at the conference. The first concerned uncertainty about the transmission mechanism by which monetary policy affects output and inflation. The second concerned the potential usefulness of monetary aggregates in guiding the economy along a stable non-inflationary growth path. The third was the recent developments in dynamic monetary general-equilibrium models. The work presented suggests that a wide range of models is useful for understanding the various paths by which monetary policy actions might influence the economy.

The effective conduct of monetary policy is complicated by uncertainty about the level of potential output, and thus about the size of the monetary policy response that would be sufficient to achieve the targeted inflation rate. One possible response to such uncertainty is for the monetary authority to "probe," interpreted here as actively using its policy response to learn about the level of potential output.

This paper examines the implications of changes in economic behaviour for simple inflation-forecast–based monetary rules of the type currently used at two inflation-targeting central banks. Three types of changes in economic behaviour are considered, changes that are motivated by developments in monetary and fiscal policy in the 1990s: changes in monetary policy credibility, changes in […]

This paper studies the implications of certain kinds of uncertainty for monetary policy. It first describes the optimum policy rule in a simple model of the transmission mechanism as in Ball and Svensson.

An important challenge facing central banks is making decisions under uncertainty about the dynamic effects of monetary policy actions. The authors stress the importance of explicitly recognizing uncertainty about the transmission mechanism when formulating policy advice. They argue that one way to manage monetary policy under uncertainty is to draw on both an output-gap paradigm […]

Canada's economic performance in the first half of the 1990s was adversely affected by high premiums in interest rates that were brought on by political and economic uncertainties.

The purpose of this study is to test the hypothesis that inflation uncertainty increases at higher levels of inflation. Our analysis is based on the generalized autoregressive conditional heteroscedasticity (GARCH) class of models, which allow the conditional variance of the error term to be time-varying. Since this variance is a proxy for inflation uncertainty, a positive relationship between the conditional variance and inflation would be interpreted as evidence that inflation uncertainty increases with the level of inflation.

This report shows that extreme conditions and volatility in markets are much more likely to result from systematic policy errors in gauging and responding to inflationary pressures in an economy than from unfortunate random shocks. We describe a simple model that incorporates the key features of the policy control process. We use two versions of […]