Monetary transmission with multiple policy rates: evidence from Turkey

Abstract

ABSTRACTQuantitative easing policies have led to persistent divergence between officially announced policy rates and short-term money market rates in many economies, making it challenging to assess the stance of monetary policy in the aftermath of the global financial crisis. Lack of data variation in short-term interest rates across time dimension has made it difficult to identify the monetary transmission mechanisms. In order to shed some light on this topic, we make advantage of a specific period from Turkey during which the central bank deliberately allowed the policy rates to diverge frequently from the interbank rates due to capital flow management purposes. Using bank-level flow data from this episode, we investigate the relationship between various short-term interest rate measures and bank loan/deposit rates through panel estimation methods. Our findings suggest that interbank rates are more relevant than central bank’s officially announced rates for the transmission of monetary policy when the two diverge from each other persistently. Interbank rates particularly play a key role in the pricing of loans and deposits. These findings provide helpful guidance for evaluating the monetary stance under unconventional policies.