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Jakina denez, Banku Zentrala (BZ) historikoki martxan jarri da banku bigarrendarrek edo merkataritza-bankuek jaulki zituzten moneta desberdinak homogeneo bihurtzeko. Zentzu honetan, BZ banku sistema osoaren piramidearen puntan kokatzen da. BZk bi funtzio nagusi ditu. Alde batetik moneta (edo dirua) jaulkitzea, beste edozein bankuk egin dezakeen moduan; bestetik, merkataritza-bankuen arteko merkatuan kredituak hornitzea, epe laburreko kredituak […]