When couples split up, families move from one to two households. Poverty is a common outcome that affects children. Six out of ten lone parents are supported by the state compared to one out of ten couple parents. That's where most of the £50bn is spent.

Rock ‘n Rollers twice as likely to divorce
Money may not buy you happiness. But it does generally increase your odds of happily ever after. Married or not, the rich are generally more