We think that the Sell Side Indicator is perhaps the best measure of the "wall of worry."

我们认为，买方指标或许是测定“忧患之墙”最好的尺度。

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First, let's look at the Sell Side Indicator, which has been our most-reliable market-timing barometer (see following chart).

首先，让我们看看买方指标，该指标一直是我们最可靠的市场时序晴雨表(参看下图)。

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Although no longer apparent on the chart because of the dynamic nature of the model, the sell Side Indicator gave sell signals leading up to the bubble.

虽然由于该模型的动态特点而在图上不再明显，但是买方指标发出各种泡沫的销售信号。

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