balance theory

Balance theory states that the market will tend toward equilibrium. Fritz Heider proposed that people will attempt to maintain a psychological balance and form relationships that balance out their likes and dislikes. For example if Person A likes a celebrity and the celebrity likes a product but Person A originally disliked the product, then Person A is likely to end up increasing his enjoyment of the product or decreasing his liking of the celebrity or both. All these options create equilibrium.