Before you dig into your next serve of glistening Christmas ham, rich gravy and potatoes drenched in baked fat, and before you chug another glass of frustratingly warm rose, pause for a moment and think. What impact will your actions have on the nation's aggregate productivity statistics? Could your second portion of brandy-smothered pudding be that final straw that pushes Australia's OECD ranking below New Zealand's?
These are the big questions the Government would like us to ask over the Christmas break. The Federal Government's Preventative Health Taskforce -- one of the higher-profile inquiries of the few dozen announced this year -- wants to make individual overindulgence everybody's problem.
According to the taskforce, obesity costs Australia $58.2 billion a year, which makes you wonder why we don't just keep all our money in an oatmeal tin where obesity can't find it. This is a huge amount. The taskforce claims that the cost of alcohol abuse is a bit more modest -- $15 billion -- but that's still a lot.
We are used to reading enormous numbers like that every day in the press. But for the most part, they consist of so many assumptions piled upon yet more assumptions that they are worthless.
One study last year claimed that Australia loses $2 billion in productivity to email spam every year. The consultancy that published the study imagines that every millisecond Australians spend deleting spam emails is a millisecond that they aren't extracting money from consumers. But, in reality, most employees find deleting spam a welcome distraction from refreshing Facebook.
So when the taskforce and the Government tell us that alcohol and obesity cost us the better part of $100 billion, what does that actually mean? Not that much.
It would be fair enough if the cost was limited to the direct cost of alcohol and obesity to the government. With a public health care system, taxpayers bear some of the costs of hospitalisation but, in defence of fat people and drunkards, they pay taxes too.
Anyway, the idea that we need to stop people overindulging because taxpayers pick up the tab has always seemed more like an argument against public health than an argument for banning junk food. Is a public health system incompatible with individuals making their own choices about what to eat?
These arguments are frequently overblown -- in the case of drinking, the direct costs to the taxpayer are exceeded by the taxes on alcohol. Public health activists argue that obesity and alcohol are ripping dollars out of the Australian economy -- as if we could figure out how much an overweight 50-year-old bank manager could have earned if he ate only salads. If we were all teetotal triathletes with doctorates in pure mathematics, the country's productivity stats would be awesome.
Some of the other "costs" are even less grounded in reality. To derive the $15 billion cost of alcohol, the taskforce adds up things like the cost of policing, property damage, insurance administration, and the lost productivity of those prisoners who may be locked up for crimes committed after drinking a six-pack. They even count the cost of lost household labour, as if instead of relaxing with a glass of wine in the evening everybody should be vacuuming the lounge room.
We can all imagine better choices other people could make. Yes, if the intern hadn't been out till 5am, there wouldn't have been that typo in the annual report. And perhaps instead of going to Friday after-work drinks we could all be inventing stuff. But that doesn't mean we should blame alcohol for the intern's lack of dedication or our lack of time machines.
There are costs incurred by every choice we make. If there weren't costs, they wouldn't be called "choices", they'd just be "things we do". But multiplying ridiculous assumptions in order to arrive at the largest possible number only obscures the real question at hand: is your fondness for cake anyone else's business?
In a savvy political move, the taskforce plans to report back in the new year. No sane government would want to be caught nagging us during our cherished festival of gluttony and inebriation.
So every time you sip your Christmas coldie, a statistician updates a spreadsheet. But don't worry too much about it -- you're having more fun than he is.
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