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Education and regulation needed to curb public’s appetite for processed foods
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To what extent should governments regulate or tax addictive behavior? This question has long framed public debate about alcohol, tobacco, gambling, and other goods and services in many countries worldwide. And now, in the United States — arguably the mother of global consumer culture — the debate has turned toward the fight against the epidemic of childhood obesity.
It is ironic that in a world where childhood malnutrition plagues many developing countries, childhood obesity has become one of the leading health scourges in advanced economies. The World Bank estimates that over a third of all children in Indonesia, for example, suffer from stunted growth, confronting them with the risk of lifetime effects on fitness and cognitive development.
Yet, the plight of malnourished children in the developing world does not make obesity in the advanced countries any less of a problem.
Indeed, though perhaps not on a par with global warming and looming water shortages, obesity — and especially childhood obesity — nonetheless is on the short list of major public-health challenges facing advanced countries in the twenty-first century, and it is rapidly affecting many emerging-market economies as well. Yet solving it poses much more difficult challenges than the kind of successful public-health interventions of the last century, including near-universal vaccination, fluoridation of drinking water, and motor-vehicle safety rules.
The question is whether it is realistic to hope for success unless the government resorts to far more blunt instruments than it currently seems prepared to wield. Given the huge impact of obesity on healthcare costs, life expectancy, and quality of life, it is a topic that merits urgent attention.
Corporate power
The US leads the world in obesity, and is at the cutting edge of the debate. Almost everyone agrees that the first line of defense ought to be better consumer education.
Yet, although education is essential to fight obesity, it is far from clear whether it will be enough in a food environment dominated by large corporations with deep pockets and every incentive to cultivate excessive consumption. Commercial television programs aimed at children are replete with advertising for processed foods of dubious value to human health. And, for every celebrity who donates time to fighting obesity, there are a dozen who accept large payments to hawk products, such as ultra-sugary drinks, that are arguably the tobacco of our generation.
The causes of obesity are complex, and the science of understanding human behavior is embryonic; but it is not hyperbole to call the problem an epidemic. According to the Centers for Disease Control and Prevention, roughly 18 percent of children aged 6-11 in the US are not just overweight, but obese.
The risks posed by this epidemic are manifold, but the main one is that childhood obesity begets adult obesity, with significantly increased risks of diabetes and heart disease. Indeed, experts estimate that more than 18 percent of all adults in the advanced economies are obese.
Yet politicians push back on Big Food at their peril. When the popular former mayor of New York City, Michael Bloomberg, attempted to ban large sugary drinks, public opinion — not to mention the New York State Court of Appeals — rejected the effort, despite support from medical experts.
Tax bad food?
Many commentators, even those sympathetic to Bloomberg’s goal, argued that it was wrong to try to legislate consumer behavior so bluntly.
Yet, when one considers other successful efforts to improve public health over the last five decades — for example, smoking bans, seat-belt laws, and speed limits — one finds that legislation typically supplemented education.
A less intrusive approach to influencing food choices might be to institute a retail tax on all processed foods — not just sugary drinks — and an offsetting subsidy on non-processed foods. In the long run, low-income families (which suffer the most from obesity) would be the greatest beneficiaries. And, in the short term, any income effects could be offset by increased transfers.
Obviously, some processed foods are far worse than others. A more complex breakdown is possible, and other ideas should of course be vetted and discussed. But our approach has the important practical advantage of simplicity. What must be understood, above all, is that US consumer culture is dominated by a food industry that exploits people’s natural joy in eating, and transforms it (in many cases) into something that is addictive and destructive.
The right place to start to address it is by creating a better balance between education and commercial disinformation. But food is so addictive, and the environment so skewed toward unhealthy outcomes, that it is time to think about broader government intervention. That should certainly include vastly enhanced expenditures on public education; but I suspect that a long-term solution will have to involve more direct regulation.
Kenneth Rogoff is a former chief economist of the IMF and a professor of economics and public policy at Harvard University. Copyright: Project Syndicate, 2015.
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