Maintaining a moderate rate of growth in prices in the medium term like that indicated in the ECB’s objective equates to ensuring over the same time horizon that the economy operates at its potential, with physical and human capital fully utilized. Assigning the ECB a dual mandate would not imply any step forward.
As for government securities purchases on the primary market, in reality this power, which can put the independence of any central bank in jeopardy, is granted to none of the central banks of the advanced countries, not even to those that have undertaken massive programmes of quantitative easing on the secondary  21  Marco Casiraghi, Eugenio Gaiotti, Lisa Rodano and Alessandro Secchi (2013), “The impact of unconventional monetary policy on the Italian economy during the sovereign debt crisis”, Banca d’Italia, Questioni di Economia e Finanza (Occasional Papers), No.