Bank of Japan Deputy Governor Ryozo Himino on Saturday called for a "holistic approach" in designing the global future monetary system that does not confine options to central bank digital currencies and stablecoins. The U.S. prohibits the issuance of CBDCs and promotes stablecoins as a means to strengthen the dollar's position as a global key currency, while Europe is promoting a digital euro to overcome regional fragmentation in retail payment systems.