Noun:
the phenomenon of a popular trend attracting even greater popularity;in periods of high merger activity there is a bandwagon effect with more and more firms seeking to engage in takeover activity
polls are accused of creating a bandwagon effect to benefit their candidate
In periods of high merger activity there is abandwagon effectwith more and more firms seeking to engage in takeover activity.潮流效应会在大量合并的阶段出现，越来越多的公司希望加入到接管活动中。