The mere-exposure effect, a cognitive bias, manifests as an improvement in feelings toward a person or object through repeated exposure. For example, the repetition of a piece of music may initially elicit indifference, but over time, through repeated listening, we begin to appreciate it. The mere fact of having already been exposed to a stimulus makes our judgments more favorable. This phenomenon applies to various domains, including social interactions. This bias is of considerable importance to management sciences, particularly marketing.