Ralph and Shane have been best friends for more than twenty years, and they influence each other's shopping choices. When they are shopping for colognes, however, Ralph picks a cologne endorsed by his basketball idol, and Shane opts for one endorsed by his favorite pop singer. In this case, which principle of influence has affected their purchasing choices?

Question

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The principle of influence that has affected their purchasing choices is authority. Ralph is influenced by the endorsement of his basketball idol, and Shane is influenced by the endorsement of his favorite pop singer. Both their idols function as authorities in their respective fields, leading them to trust the recommended colognes.

Ralph and Shane Have Been Best Friends for More Than