Bandwagon Effect

The Bandwagon Effect demonstrates how the pressure to conform can override clear sensory evidence, as Solomon Asch's 1951 experiments revealed: when shown an obviously shorter line, 75% of participants agreed with the incorrect majority at least once. This effect is more pervasive than the Negativity Bias in social settings; while negativity amplifies personal reactions, the bandwagon drives collective behavior regardless of stimulus quality. In markets, it creates bubbles where assets rise simply because others are buying, attracting additional buyers in a feedback loop. In elections, polls showing a leading candidate generate more votes. On social media, a post with 10,000 likes receives 30% more engagement than an identical post with 100 likes, proving that popularity itself becomes the signal.