Appeal to fear

An appeal to fear (also called argumentum ad metum or argumentum in terrorem) is a fallacy in which a person attempts to create support for an idea by using deception and propaganda in attempts to increase fear and prejudice toward a competitor. The appeal to fear is common in marketing and politics.

This fallacy has the following argument form:

The argument is invalid. The appeal to emotion is used in exploiting existing fears to create support for the speaker's proposal, namely P. Also, often the false dilemma fallacy is involved, suggesting Q is the proposed idea's sole alternative.

Fear, uncertainty and doubt (FUD) is the appeal to fear in sales or marketing; in which a company disseminates negative (and vague) information on a competitor's product. The term originated to describe misinformation tactics in the computer hardware industry and has since been used more broadly. FUD is "implicit coercion" by "any kind of disinformation used as a competitive weapon." FUD creates a situation in which buyers are encouraged to purchase by brand, regardless of the relative technical merits. Opponents of certain large computer corporations state that the spreading of fear, uncertainty, and doubt is an unethical marketing technique that these corporations consciously employ.

Fear appeals are often used in marketing and social policy, as a method of persuasion. Fear is an effective tool to change attitudes, which are moderated by the motivation and ability to process the fear message. Examples of fear appeal include reference to social exclusion, and getting laid-off from one's job, getting cancer from smoking or involvement in car accidents and driving.

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