Answer:
pester
Explanation:
The power of children, by constant nagging or pestering, to force their parents to purchase marketed or trendy products. In other words, the tendency of the child to nag the parent unceasingly before the parent listens to the child's appeal. The increase in the problem of pester power is directly connected to the growth of advertisements. As per the question, Austin repeatedly nags until his mom buys that product and therefore example of pester power.