I think i got pocket money once when i was a kid but my brother who is almost 15 gets between $30-$50 a week. My mums had problems with him for years, he refused to go to school for a couple of years so its more of an incentive, he gets money to buy a game or go to the movies when he goes to school for a full week and he gets money for helping around the house. I also give him money for lunch and what not when i see him.

But when i have kids of my own i will base it on what chores they do. So $1 for every chore they complete. And i will also reward them by doing well at school.