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opinion leader

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An individual who helps to shape or set public opinion by virtue of prominence in public life, whether in a religious setting, politics, business or commerce, the mass media, the performing arts, or elsewhere. Opinion leaders may influence society and current affairs and events for good or ill, according to the nature of the message they seek to convey or the behavior they demonstrate for others to imitate. The words and actions of opinion leaders sometimes significantly affect public health, for instance, when media stars exhibit high-risk behavior.

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