According to Steve Lewis in the Daily Telegraph
CONSUMERS will be slugged with price rises on everyday items like milk, cheese, chocolate and pizza’s as the carbon tax puts the squeeze on retailers and producers
(the apostrophe in pizza’s suggests News may have cut the subediting budget a bit too far). He illustrates with a picture of a mother of three who is currently paying $300 a fortnight for groceries.
Steve can’t say how much, and neither can his sources, though they are happy to give scary quotes. So, instead he quotes some big-sounding numbers derived from the Dept of Climate Change analysis. Woolworths, for example, will pay around $73 million a year in higher electricity costs. That certainly sounds like it would put a dent in the household budget. As the old saying has it, a million here, a million there, pretty soon you’re spending real money. That’s where Lewis leaves the story
But those of us capable of primary school arithmetic can take things a little bit further. There are 20 million or so people in Australia, so the cost amounts to aroun $3.50 a year, or 7 cents a week for us. For the archetypal (if unrepresentative family of four) that’s around 30 cents a week or 60 cents a fortnight (an increase of 0.4 per cent for the mother in the example). Looking at the illustrative photo, that’s rather less than the difference between the Kleenex tissues in the shopping trolley and the home brand alternative.
For a validity check on the impact, we could look at Woolies’ total sales of around $18 billion a year. A cost increase of $73 million is approximately 0.4 per cent. Of course, this doesn’t really get to the right answer either, because it doesn’t take account of changes in the wholesale cost of goods (so-called Scope 3 emissions).
But doing the analysis at an aggregate level fixes this pretty well. A tax at $26/tonne will raise around $10-$12 billion, depending on exemptions and particularly on the treatment of petrol. That’s about 2.5 per cent of total household expenditure on goods services, meaning that the gross impact of the carbon tax will be about a quarter that of the GST (note however, that the GST was offset, for goods, by the removal of Wholesale Sales Tax). The increase will be greater than this for energy services (electricity, gas and so on), and therefore must be less on non-energy goods. Overall, it’s safe to predict that the impact on grocery bills and similar items will be around 1 per cent.
Over the fold, I’ll do the cents per week exercise for all of Lewis’ examples when I get a moment