My question is to the Minister representing the Treasurer and also Minister representing the Minister for Climate Change and Energy Efficiency, Senator Wong. Can the minister advise the Senate whether the updated Treasury modelling on the impact of the carbon tax, which was referred to by the Treasurer in his Economic Note on Sunday, has been completed? Mr President, through you, I inform the minister that I seek no other information from the minister. My question is simply whether or not the work has been completed: yes or no.