Bulletin of Monetary Economics and Banking

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This paper investigates the transmission mechanism of dual monetary system from conventional and Islamic policy rates to inflation and output. We apply Granger Causality and VAR methods on monthly data of Indonesian banking, during the period of January 2003 to December 2009. The result shows that conventional policy rate is transmitted to output and inflation, while Islamic policy rate are not. In addition, the shock of conventional interest rate, credit and interbank rate give a negative and permanent impacts on inflation and output, except for SBI (Certificate of Bank Indonesia) with positive impact to inflation though negatively affect the output. On the other hand, the shock of PLS, financing and Islamic interbank PLS, as well as SBIS (Central Bank Shariah Certificate) give positive and permanent impacts on inflation and output.

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