Biff is the eldest son of Willy. Like his father, he strives to get rich, but every single installment (for a house, a car, food) is always a problem. He has two gods - success and family, and he is endowed with the same charm as his father, that’s why he has a role of a favorite son. However, Biff's life went wrong. He can not and does not want to justify his father's hopes, so he eventually conceives and carries out a car accident for the sake of insurance as a starting capital for his son.
Biff Loman in the Essays