Dictionary of Human Evolution and Biology

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Concorde Fallacy

Argument that if an individual has invested greatly in an offspring or some other object such as a nest, it will continue to invest in it rather than abandon the project, even if the continued costs will outweigh the benefits. The term has its origins in the now defunct Concorde supersonic transport, aircraft, beset with problems, and the reluctance of the nations involved in its development to abandon the project because of the costly investment already made.

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