The tendency to ignore or harbor negative attitudes toward ideas from outside one's own organization or project team is known as the not-invented-here bias.

Question

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The not-invented-here bias refers to the tendency of individuals or groups to avoid or devalue ideas, products, or standards that originate outside their own group, leading to a preference for internally developed solutions regardless of their merit compared to external options.

The Tendency to Ignore or Harbor Negative Attitudes Toward Ideas