herd behaviour

Syllable breakdown

Dictionary meaning

an idiom and social science concept describing the tendency of individuals to follow and imitate the behaviour of a larger group — the herd — rather than acting on independent judgement or private information, particularly in conditions of uncertainty where social signals from others serve as a guide to appropriate action; herd behaviour occurs across many domains including financial markets — where investors buy or sell based on what others are doing rather than fundamental analysis, creating asset bubbles and crashes — consumer behaviour, fashion, political movements, and social media engagement; from an individual perspective herd behaviour can be rational — if others have relevant information or social belonging requires conformity — but collectively it can lead to cascades of mistaken action as individuals discount their own information in favour of social signals that may themselves reflect herding rather than genuine knowledge; the phrase often carries a pejorative implication that people are following blindly, though defenders note that social learning and coordination are often efficient responses to information scarcity