Comparative Methods of Econometric Analysis
In econometrics and statistics, you sometimes will truncate outliers. Otherwise, maybe it's worth mentioning that in the business of predicting, analysts are punished for either being wrong, but their punished even more if they were boldly wrong. This is a form of herding behavior. Deviating from the consensus can be disproportionately risky.

Here's a paper that talks about it: "Security analysts’ career concerns and
herding of earnings forecasts" in the RAND Journal of Economics.