“…Regarding the explanatory variables, for instance, Huchet (2003) uses lagged short-term interest rate, inflation gap and the M3 growth gap compared to its 2% target and a 4.5% reference value, respectively, and the output gap. Altavilla (2003) creates instrument rules which vary between inflation, output gap, and interest rate, as well as their lagged values and an autoregressive term. In addition, some literature highlights the importance of considering external variables as the current account balance and real effective exchange rates to achieve a better assessment of monetary policy dynamics (see, for instance, Kara & Nelson, 2003;Monacelli, 2005;Corsetti & Pesenti, 2005;Kirsanova, Leith, & Wren-Lewis, 2006, and;Leith & Wren-Lewis, 2007).…”