Your independent source for Harvard news since 1898

Your independent source for Harvard news since 1898

Right Now | Slant Sells

The Market for News

January-February 2006

Illustration by Tom Mosser


Illustration by Tom Mosser

Imagine that the Labor Department releases new statistics that show the U.S. unemployment rate rising from 6.1 to 6.3 percent. One major newspaper reports this under the headline RECESSION FEARS GROW, with a photograph of a long line of people in Detroit waiting to receive unemployment compensation checks. In the story, a leading economist laments this evidence of the administration’s failed policies. Another newspaper’s story, TURNAROUND IN SIGHT , notes instead that the rate “inched up” by only 0.2 percent last quarter and showcases a Goldman Sachs strategist who declares that, because a soft labor market augurs well for corporate profits, the news bodes well for stock values.

This hypothetical example comes from “The Market for News,” a recent paper in the American Economic Review by Jones professor of economics Andrei Shleifer and Sendhil Mullainathan, professor of economics. They explain how the explosion of news media that has fueled fierce competition in the industry has not led to more accurate reporting. “Competition generally reduces newspaper prices,” the authors write, “but does not reduce, and may even exaggerate, media bias.” In fact, they say, “Powerful forces motivate news providers to slant and increase bias rather than clear up confusion.”

Mullainathan acknowledges that competition is good at providing people with what they want, at a lower price. But he adds that it’s a great mistake to assume that consumers of news media want only unslanted reports. Readers and television audiences do want accuracy—along with explanation, interpretation, persuasion, entertainment and, crucially, confirmation of what they already believe. “Media outlets do not provide unadulterated information,” the authors write, “but tell stories that hang together and have a message, what is referred to in the business as ‘the narrative imperative.’ In this view, news provision can be analyzed in the same way as entertainment broadcasting.”

“Viewed as an economic transaction, what matters is accuracy as judged by the consumer,” Mullainathan says. “It’s not accuracy with a capital A, as in some objective measurement. Economically, the ones who count are the viewers or readers in your market segment. CBS news viewers feel that CBS is accurate and Fox News is biased—and vice versa.”

The researchers also make a deeper point about the nature of competition. Mullainathan draws the analogy of a long beach occupied by swimmers enjoying the sun. An ice-cream vendor arrives. If all the swimmers are at one end of the beach, the vendor would set up the stand there. But if customers are spread out along the entire beach, the single vendor should locate in the middle of the beach to offer easy access to the most customers.

“Think of that beach as the political spectrum,” Mullainathan says. “If there is one seller, you locate in the middle—just as a monopoly newspaper will locate itself in the center of the political spectrum to draw the most readers. But if a second seller sets up in the center, the two newspapers will just be competing on price. So instead they segment the market, with one paper going to the right-hand side of the beach, the other to the left.” One paper might even go to the extreme right end of the beach, where it can charge a higher price to readers who don’t want to make the long walk to the left. “As two firms move farther out from the center,” Mullainathan says, “they insinuate themselves more with their customers.” In just this way, the researchers write, “Newspapers locate themselves in the product space through their reporting strategies (i.e., how they slant).” Bias is not a product defect, but a feature.

For the average consumer, who takes in but one source of news, competition “tends to polarize beliefs, and increases the slanting of individual media sources, and the bias of the average reader,” the authors write. But for a hypothetical conscientious reader who consumes news from a wide variety of media, the different biases “tend to offset each other, so the beliefs of the conscientious reader become more accurate than they are with homogeneous readers. Our central finding is that heterogeneity plays a more important role for accuracy in media than does competition.”

It is different with generally noncontroversial subjects. After September 11, for example, hardly anyone in America was asking whether U.S. actions had led to the attacks. Similarly, in the realm of criminal justice, public interest in incarceration far outweighs that in rehabilitation. For topics like these, “You could watch both liberal- and conservative-slanted media and still not get all the facts,” Mullainathan says. But whatever the coverage, he notes, “Every consumer will feel like his or her news is not biased. That’s the power of bias. You still think you’re getting accurate news.”

~Craig Lambert

Sendhil Mullainathan e-mail address: [email protected]