In those days, the new government was caught in serious financial difficulties not only because a great amount of gold flowed outside the country due to the different exchange ratios between gold and silver at home and abroad, but also because the expenses for Boshin Civil War and the encouragement of new industry was required.
また当時、国内外の金銀比価の差により、大量の金が国外へ流出していた上、さらに戊辰戦争による戦費や、殖産興業のために新政府は深刻な財政不足に陥っていた。