Benchmark portfolio: An assessment of the most efficient passive portfolio strategy the Bank could adopt for each major currency if it decided to abandon its active trading strategy while keeping an average portfolio duration of 12 months.

• 基准证券投资组合: 指世界银行投资组合战略的一种评价方式,用于当世界银行决定放弃主动交易战略并保持投资组合平均12个月的期限时,确定对每种主要货币可以采取的效率最高的消极投资组合战略。