Splicing Index Numbers
论证了在拼接重叠指数序列时使用几何平均公式的合理性，因为它是唯一能保证拼接后序列对原始序列缩放不变的对称平均公式。
This article demonstrates the compelling case for using the geometric mean formula for splicing overlapping index number series. The justification for using the geometric mean rests on the fact that it is the only symmetric mean formula that generates a spliced series that is invariant to rescaling of the original series.