CID Working Paper No. 143, March 2007

Through the Pass-Through: Measuring Central Bank Credibility

Roberto Rigobon

A publication of the CID South Africa Growth Initiative

Abstract 

In the last decade, the South African Reserve Bank has been carrying out an aggressive inflation targeting program. Judging by the decline in inflation, it could be argued that the central bank has been successful in controlling the inflation rate. However, “judging by the outcomes" is not necessarily the correct measure of how much credibility has been gained in this process. In fact, part of the decline in inflation could be the result of a reduction of inflation in the world, and not necessarily to good internal policy. In this short note, I evaluate how much credibility the central bank has gained in the last three years by using a unique data set that looks at firms’ decisions that are affected by the prospects of inflation. By using this measure I argue that indeed the Central Bank has gained significant credibility in recent years.

Keywords: South Africa, Pass-Through, Central Bank Credibility

JEL codes: E52, E58

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