Weeding out the bad and the ugly based on these scores, and thus picking more of the good apples, has been shown to provide higher returns with lower risk than actively managed alpha or passive beta funds. And, as the rankings change over time to reflect countries’ improving or worsening fundamentals, the equity markets that “smart beta” investors choose change accordingly.
根据这些分数剔除坏标的和丑标的，从而遴选出更多好标的，这样做已证明能够提供比积极管理阿尔法基金或消极贝塔基金更高的回报和更小的风险。此外，排名会随时间推移而改变以体现各国基本面的改善或恶化，“聪明贝塔”投资者所选择的股票市场也会随之改变。