Senator CORMANN (Western Australia) (14:17): Mr President, I ask a supplementary question. Isn't it true to say that, consistent with the government's own Treasury modelling, the government fully expected that its carbon price would cause 'a significant decline in rates of return' by 2020 for Australian mining and metals production? Isn't it true that the same Treasury modelling of Labor's carbon price forecasts a reduction of investment in coal mining of 12.8 per cent, a decline of investment in manufacturing of 3.1 per cent and a decline of two per cent in investment in other mining by 2020?