The phrase is used to describe the negative connotations of children's influence in their parents buying habits.
Pester Power is commonly used by marketing companies to target the 4–6 years old category as they have limited disposable income of their own, and consequently do not have the means to buy goods themselves.
The growth of the issue of Pester Power is directly related to the rise of child advertising.
A key concern of pester power is its effect on childhood obesity. As the products which are promoted to children are pre-sugared cereals, soft drinks, savoury snacks, confectionery and fast food, which in turn are some of the most calorie-dense of all food articles.
Several times a day the boy mentioned the expensive video game to his mom, hoping that pester power could convince her to buy it for him.