Chris Snowdon at the Adam Smith Institute blog:
When we scheduled the release of The Wages of Sin Taxes for 15th May, we did not guess that it would be sandwiched between the announcement of a 50p minimum price for alcohol in Scotland (Monday) and a new campaign for sin taxes on food and soft drinks (today). Writing in the British Medical Journal, two academics have just called for price hikes on sugar-sweetened beverages and ‘junk food’ as a way of dealing with Britain’s alleged obesity epidemic.
Obesity rates, like drinking rates, have not actually risen for ten years, but the same decade saw the medical profession gain an uncanny grip on the nation’s political process and they are in no mood to relinquish it. Taking a break from hassling smokers and drinkers, the mandarins of public health have taken the ‘next logical step’ and moved on to the general population.
“Economists generally agree,” they write, “that government intervention, including taxation, is justified when the market fails to provide the optimum amount of a good for society’s wellbeing.” Even if this dubious statement were true, there has never been a time when the market offered more choice in what we eat than drink than today. And, contrary to popular belief, it is much cheaper for a family to subsist on fresh fruit and vegetables than it is to eat out at McDonalds three times a day. For the spokespeople of public health, the problem is not that there is a lack of options, but that we plebs are not choosing the right ones.
Defining junk food is notoriously difficult. As Rob Lyons explains in his excellent book Panic on a Plate, a portion of McDonalds fries contains a quarter of an adult’s recommended intake of Vitamin C, while middle class favourites like olive oil, parmesan and pasta are rather fattening. A tax on “sugar sweetened beverages” will presumably leave apple juice and smoothies untouched, despite the fact that fruit juices are often sweeter and more calorific than Coca-Cola.