 The BOJ also tripled the quantity of long-term Japan government bonds it could purchase on a monthly basis.However, the seven-fold increase notwithstanding, current account balances (essentially central bank reserves) being just one (usually relatively small) component of the liability side of a central bank's balance sheet (the main one being banknotes), the resulting peak increase in the BOJ's balance sheet was modest, compared to later actions by other central banks.The use by the Bank of Japan is not the origin of the term "quantitative easing" or its Japanese original (量的金融緩和, "ryōteki kin'yū kanwa").