It’s impossible to escape advertising. Truck ads on billboards,
beer ads on television, pop-up ads for credit cards on the Internet. It’s
everywhere. Last year, U.S.
companies spent about $144 billion on commercials and other forms of
marketing—about 1 percent of the GDP. So what effect do all these ads have on
the economy?
Economists have been debating this topic for a century now, and a
couple of broad camps have formed. Many argue that ads are ultimately
beneficial, giving people more information about products and boosting
competition. Others suggest that ads are essentially a psychological ploy,
persuading people to buy things they wouldn’t otherwise want or need. And a few
economists, notably Arthur Pigou, have argued that there’s too much advertising in the world, with
rival companies merely bludgeoning each other to a standstill.
So which view is correct? Over at VoxEU,
Ferdinand Rauch of the University
of Oxford describes a fascinating natural experiment he studied to shed light on this
question. It turns out that many camps are correct. Advertising does appear to
make some products cheaper on the whole—presumably because the ads are
informative. But for other products like alcohol or restaurants, ads do seem to
persuade people to buy more than they otherwise would.
In his recent
paper (pdf), Rauch
examined Austria ,
which has eight regions that all once taxed advertising at different rates.
Then, in 2000, the central government stepped in to harmonize this tax across
the entire country, setting it at a flat 5 percent. That meant the advertising
tax went up in some regions and down in others.
This change, Rauch notes, had an immediate and
large impact on the amount of advertising in each region. In other words, an ad
tax really does discourage ads.
The change in advertising seemed to have a noticeable impact on
consumer prices in Austria .
In some areas, prices actually went up as the amount of
advertising on these products increased. That suggests that the ads were
convincing people to buy more of these products than they otherwise
would.
But in other areas, such as food and
education, prices went down as more ads appeared. This seems to suggest that
ads were giving people better information about products and allowing them to
make more discerning choices. (Indeed, Rauch found that the types of ads in
industries where prices went down tended to be more informative.)
Now, obviously in many areas ads are both
informative and persuasive, in which case it’s difficult to untangle the effect
on prices. But on the whole, Rauch found that advertising tends to lower
consumer prices across the board. If Austria ’s 5 percent tax on ads were
repealed entirely, he estimated, consumer prices would decrease about 0.25
percentage points on average—though it would vary from industry to industry.
This isn’t a totally theoretical argument.
Over the years, a few U.S.
states have considered taxing ads. The Florida
legislature passed such a tax in 1987, though it was repealed six months later
after an outcry. In 2006, Pennsylvania
mulled a 6 percent sales tax on advertising. And France has occasionally flirted
with the idea.
The merits of this idea depend a lot on
whether advertising does more harm than good. And, as economist Timothy Taylor sums up, “Advertising may be that
rare case where economists are less cynical than the general public.”
Article Source: Washington Post
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