The federal government says it will meet its target for a budget surplus in 2012/13, after making new savings worth $11.5 billion over four years, but economists say Labor has not made large enough savings to ensure its forecasts will be met.

The federal government says it will meet its target for a budget surplus in 2012/13, after making new savings worth $11.5 billion over four years, but economists say Labor has not made large enough savings to ensure its forecasts will be met.