This is an interesting article on the IGR
The bit that caught my eye was this
Perhaps Mr Hockey would care to correct this anomaly before he lectures people about working longer.Australia's age pension spending is 3.5 per cent of GDP, well below the OECD average of 7.8 per cent of GDP. Total age pension spending is less than the amount of tax the government foregoes every year by giving concessions on superannuation, nearly 60 per cent of which go to the top 20 per cent of income earners.
You can bet he will retire early on his bloated Parliamentary pension and super payouts.