Macroeconomic determinants of MIR interest rate margin in the euro area

This study aims to examine the determinants of the MIR interest rate in the Euro area for the period 2003Q1-2015Q3. By employing Fixed and Random Effects as econometric methodologies, I examine whether the MIR rate is affected by the following macroeconomic factors: unemployment rate, inflation rate, GDP growth, political stability index, and wages as percentage of GDP. All these factors have been found to be significant drivers of the MIR rate and thus, they have to be taken into consideration when designing macro-prudential policies. The findings in this paper provide alternative explanations for the empirical evidence concerning interest rate spreads behaviour.