Other scenarios included the aggregate balance increasing to a size where the total opportunity cost to the banking sector exceeded the perceived risk of the alternative i . e . appreciation of the hong kong dollar , resulting in banks switching out of hong kong dollars ; the imposition of charges on large balances maintained by banks in their clearing accounts held with the hkma ; and allowing low nominal and real interest rates to continue to play their role in facilitating economic recovery until , through the normal operation of the currency board system , equilibrium was gradually restored 委员会获悉这项安排是在港元强势令总结馀水平及有关的宽松的货币状况引起关注的这一种情况下，可以采取的措施。其他可能出现的情况包括总结馀继续增加，直至银行体系认为其机会成本明显超过港元升值的风险，促使银行减持港元金管局开徵银行结算户口大额结馀的收费以及在货币发局制度的正常运作下让偏低的名义及实质利率继续发挥作用，促进经济复苏，直至经济逐步回复平衡。
Perhaps a long period of low and sometimes negative real interest rates in the nineties was a disincentive for debt issues by the private sector . indeed , the significantly positive real interest rates of the past few years and low nominal interest rates seem to have made a difference in both the number of and the amount involved in debt issues brought to the market 年代实质利率长期处于偏低甚至负数水平，令私营机构缺乏发债意欲，但过去几年实质利率显著高于零水平，加上名义利率偏低，似乎为债市带来新的面貌，无论发债次数或规模都有了进展。
