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Waist banned - Does a tax on junk food make sense?
Economist ^ | July 30 2009

Posted on 08/20/2009 1:18:21 PM PDT by swarthyguy

ECONOMISTS have long recognised the arguments for imposing special taxes on goods and services whose prices do not reflect the true social cost of their consumption. Such taxes are known as “Pigouvian” after Arthur Pigou, a 20th-century English economist. Environmental taxes are an obvious example. There is also a Pigouvian case for duties on cigarettes, alcohol and gambling. Smoking increases the risk of cancer for those in the vicinity of the smoker; alcohol abuse and gambling are strongly associated with violence and family breakdown. Moreover, all three habits lead to higher medical costs. In theory governments can make up these costs, or “externalities”, with a tax that adjusts the prices people pay to puff, booze or punt. Such a tax might also encourage consumers to live healthier lives.

Support for another such tax, on junk food, is now spreading, especially in America. Congress is considering a tax on sugary drinks to help pay for the planned expansion of health-care coverage. Some analysts would like to see broader duties on junk food. On July 27th the Urban Institute, a think-tank in Washington, DC, proposed a 10% tax on “fattening food of little nutritional value” that, it claimed, would raise $500 billion over ten years.

The logic for a tax on fattening food may seem obvious. About one-third of Americans are obese, up from 15% in 1980. Fat people are more prone to heart disease, diabetes, bone disorders and cancer. An obese person’s annual medical costs are more than $700 greater than those of a comparable thin person. The total medical costs of obesity surpass $200 billion a year in America, which is higher than the bill for smoking. These costs are not all borne by the obese. When health-care costs are shared, obesity becomes a burden for everyone. Thanks to government health-care plans such as Medicare half of America’s obesity-related health costs land on taxpayers. In private employer-sponsored health plans the slim pay similar premiums to the overweight.

But would a fat tax affect behaviour? Numerous studies have shown a relationship between the price of food, especially junk food, and body weight. As fast food has become relatively cheaper, so people have become fatter. A new paper* from the RAND Corporation, another think-tank, suggests that taxing calories could have a sizeable, if gradual, effect on people’s weight. The authors of the study look at changes in the weight and height of a large group of Americans aged over 50 between 1992 and 2004. They then calculate food-price indices that are skewed towards calorie-dense foods (so a change in the price of butter has more impact than a change in the price of vegetables). By controlling for individual and environmental influences on weight, such as income and health, they then measure whether food-price changes affect body-mass index (BMI). BMI, the ratio of weight in kilograms to the square of height in metres, is a common, if imperfect, gauge of whether someone is over- or underweight.

A person’s BMI turns out to be hard to shift in the short term. A 10% increase in the calorie-heavy price index is associated with a small decline, of 0.22, in BMI within two years. But the effects are greater over the longer term. A 10% increase in the price of calories results in a fall in BMI of one to two points over 20 to 30 years. Such a drop would eliminate about half of the observed increase in obesity in America since 1980.

Even so, the idea of tackling obesity via the tax system has some serious flaws. First, there is the question of what to tax. Sugary drinks may not be nutritious, but hamburgers contain some protein along with their fat. More important, junk food is not itself the source of the externality—the medical costs that arise from obesity. Unlike smoking, or excessive gambling and drinking, eating junk food does not directly impair the well-being of anyone else. And because obesity is determined by lack of exercise as well as calorie intake, its ultimate relationship with health costs is more tenuous than that of, say, smoking. It is possible to eat a lot of fatty food, exercise frequently and not generate any externalities. A more direct, though controversial, approach would simply be to tax people on the basis of their weight.

Fat chance The distance between junk food and the medical costs of obesity means that a calorie tax could have unintended consequences. A new theoretical paper in the Journal of Public Economics even suggests that a tax on junk food could increase obesity, especially among physically active people. If junk food, which is quick and easy to obtain, becomes relatively dearer, people will spend more time shopping for fresh ingredients and preparing food at home. That could leave less time for exercise.

Even if perverse consequences of this type look improbable, a junk-food tax may have less impact than its advocates expect. New studies on the effect of cigarette and alcohol sin taxes suggest heavy users are less influenced by price changes than others. An analysis of data from the National Longitudinal Study of Adolescent Health shows that American teenagers who smoke more than five cigarettes a day are only one-third as responsive to cigarette prices as lighter smokers. A complementary study of data from America’s Health and Retirement Survey shows that alcohol taxes are far less effective for the large minority of heavy drinkers. The biggest consumers of fattening food may prove similarly resilient to price increases, so a fat tax may do little to improve health, at least for today’s junk-food addicts. If these same consumers are poorer on average, it would also be regressive. One reason for this is that in some poorer neighbourhoods there may be little fresh food on sale. If junk is all there is, putting up its price will reduce real incomes and make little difference to eating habits and health. Like the foods they aim at, fat taxes look appetising but can have nasty effects.


TOPICS: Culture/Society; News/Current Events
KEYWORDS: nannyism; nanzi; swarthyguy
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To: swarthyguy
I'm thinking what we need is just to cut to the chase - a government board made up of representatives from Greenpeace, PETA, Ceasefire, all those wonderful NGO's who are the real experts, and have them make out a list of how everyone should live. Tax everything else.

Yeah, sure, we'd all be lying in the dark in a government barracks chewing on celery, but dammit, we'd be Saving The Planet. What's important here?

41 posted on 08/20/2009 1:59:15 PM PDT by Billthedrill
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To: Kenny Bunk; swarthyguy

>> I guess you found that out the hard way.

I was shocked, I tell ya. SHOCKED.


42 posted on 08/20/2009 2:01:32 PM PDT by Nervous Tick (Stop dissing drunken sailors! At least they spend their OWN money.)
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To: swarthyguy
"We must not let our rulers load us with perpetual debt. We must make our selection between economy and liberty or profusion and servitude. If we run into such debts as that we must be taxed in our meat in our drink, in our necessities and comforts, in our labors and in our amusements, for our callings and our creeds...our people.. must come to labor sixteen hours in the twenty-four, give earnings of fifteen of these to the government for their debts and daily expenses; and the sixteenth being insufficient to afford us bread, we must live.. We have not time to think, no means of calling the mis-managers to account, but be glad to obtain subsistence by hiring ourselves to rivet their chains on the necks of our fellow suffers. Our landholders, too...retaining indeed the title and stewardship of estates called theirs, but held really in trust for the treasury, must...be contented with penury, obscurity and exile.. private fortunes are destroyed by public as well as by private extravagance.

This is the tendency of all human governments. A departure from principle becomes a precedent for a second; that second for a third; and so on, till the bulk of society is reduced to mere automatons of misery, to have no sensibilities left but for sinning and suffering... And the fore horse of this frightful team is public debt. Taxation follows that, and in its train wretchedness and oppression." Thomas Jefferson

43 posted on 08/20/2009 2:03:02 PM PDT by DJ MacWoW (Make yourselves sheep and the wolves will eat you. Ben Franklin)
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To: DannyTN

>> there is no consensus on what is junk food.

Not to worry — Bambi will appoint a high-ranking PETA director to be “Junk Food Czar” and figure all that out in short order.

Speaking of short order, where’s my burger & fries? I’m in a hurry.


44 posted on 08/20/2009 2:05:02 PM PDT by Nervous Tick (Stop dissing drunken sailors! At least they spend their OWN money.)
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To: GeronL

I read on FR yesterday that there are no grocery stores left in Detroit. Just small corner stores. They are tending gardens in empty lots for food.


45 posted on 08/20/2009 2:05:02 PM PDT by DJ MacWoW (Make yourselves sheep and the wolves will eat you. Ben Franklin)
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To: gwilhelm56

more beer tax is next....


46 posted on 08/20/2009 2:05:08 PM PDT by himno hero
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To: AnotherUnixGeek

>>They do not (or at least should not) exist to allow the control-freaks of society to try to punish those behaviors they happen to dislike.

How quaint. So Twentieth Century.

When pieces like this start appearing in the Economist, along with another piece about mileage fees for all cars, methinks total control of our lives is preordained, not to mention SmartGrid Thermostats and Implanted Chips too.


47 posted on 08/20/2009 2:10:39 PM PDT by swarthyguy (MEAT, the new tobacco. Your right to eat meat ends where my planetary ecosystem begins.)
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To: Kenny Bunk

Speaking of which, using crispy wide bacon strips to scoop up slightly softened and melted ice cream has met with great approval from boys in the under 10 range.


48 posted on 08/20/2009 2:15:34 PM PDT by swarthyguy (MEAT, the new tobacco. Your right to eat meat ends where my planetary ecosystem begins.)
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To: DannyTN

Well, they’ll start with McD’s and the like and then, after a few years, PETA’s food with faces will be junk food, or “corpse” food, as Arthur C. Clarke speculated in one of his books.


49 posted on 08/20/2009 2:17:01 PM PDT by swarthyguy (MEAT, the new tobacco. Your right to eat meat ends where my planetary ecosystem begins.)
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To: swarthyguy

I thinked I am being punked.


50 posted on 08/20/2009 2:17:26 PM PDT by dangerdoc (dangerdoc (not actually dangerous any more))
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To: Billthedrill

>>dammit, we’d be Saving The Planet. What’s important here?

That is the proper way to be thinking, CitizenSubject.


51 posted on 08/20/2009 2:19:25 PM PDT by swarthyguy (MEAT, the new tobacco. Your right to eat meat ends where my planetary ecosystem begins.)
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To: swarthyguy

If they raise the price of the dollar burgers, what will I give my mastiff for a treat? I mean, I buy a bag of 10, three days later they’re gone, and I have NOT HAD EVEN ONE!!!!

Sheesh! You’d think they’d at least have compassion on Tink.


52 posted on 08/20/2009 2:21:18 PM PDT by Judith Anne (Drill here! Drill NOW! Defund the EPA!)
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To: swarthyguy

if they won’t cut the subsidies for ethanol I’d like to see them try and tell that constituency that they are going to slam a tax on the consumption of corn syrup...


53 posted on 08/20/2009 2:29:24 PM PDT by Buckeye McFrog
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To: swarthyguy
......crispy wide bacon strips to scoop up slightly softened and melted ice cream......

You, my right-wing friend, are not going to have an easy time of it at the Jane Fonda Hanoi Hilton Political Attitude Re-Adjustment Camp .... especially in the Mess Hall.

Go in peace. Have some celery. And think this over!

54 posted on 08/20/2009 2:30:47 PM PDT by Kenny Bunk (Congratulations Obama Voters! You are not prejudiced. Unpatriotic, maybe. Dumb definitely.)
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To: married21

>Pigoutian

That’s a clever turn of phrase.

Perhaps you should send it to PETA, they can add it to their Florida whales and makes a nice pejorative description of anyone entering a Wendy’s or gasp, even worse, sitting in the drive thru, wasting precious hydrocarbons.

You may have started something here.


55 posted on 08/20/2009 2:32:27 PM PDT by swarthyguy (MEAT, the new tobacco. Your right to eat meat ends where my planetary ecosystem begins.)
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To: swarthyguy
This is my preference. Fat people make seats wear out faster, take up more space, and simply use more resources in their arc upon this mortal coil.

I'll pay my fat tax when you pay your idiot tax.

56 posted on 08/20/2009 2:37:18 PM PDT by OpeEdMunkey (ObamaCare...there's some change ya didn't count on.)
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To: Kenny Bunk

>>Jane Fonda Hanoi Hilton Political Attitude Re-Adjustment Camp .

You’re stuck in the Sixties.

This time the camps will be modelled upon Kellogg’s Fat Farms of the early 20th Century.

The OprahDeepakChopra Centers for Voluntary Wellness and Nutritional Awareness.


57 posted on 08/20/2009 2:38:03 PM PDT by swarthyguy (MEAT, the new tobacco. Your right to eat meat ends where my planetary ecosystem begins.)
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To: OpeEdMunkey

I paid the idiot tax for you too, so don’t bother.


58 posted on 08/20/2009 2:39:56 PM PDT by swarthyguy (MEAT, the new tobacco. Your right to eat meat ends where my planetary ecosystem begins.)
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To: Buckeye McFrog

In MA they’re talking about a soda tax. That’s close, isn’t it.


59 posted on 08/20/2009 2:42:13 PM PDT by swarthyguy (MEAT, the new tobacco. Your right to eat meat ends where my planetary ecosystem begins.)
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To: MozarkDawg

I agree. I don’t eat junk food but I am overweight. I take medications that make losing it impossible. I guess o will want me to die so I will be thin.


60 posted on 08/20/2009 2:43:06 PM PDT by KYGrandma
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