Bias number 14 is known as the bandwagon effect. This is a social cognitive bias that affects people’s short-term decision-making and resulting actions.
It is what is says on the tin. In essence, people jump on a bandwagon of a trend as more and more people support it. Whether we’re talking about a fashion statement or a social movement, people adopt a trend to conform. As the trend increases in popularity, so too does the size of the bandwagon.
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