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Photo: Dan Kitwood/Getty Images

Google search results for the same term vary widely from user to user, a new study from a competitor finds.

Why it matters: There’s growing interest in how Google and other large web platforms filter content. Conservatives have offered unproven allegations of bias against the right, but observers of all stripes worry that platforms can narrow users’ view of the world, rather than expand them.

Details: The privacy-oriented rival search engine DuckDuckGo had a group of volunteers search for the same terms — “gun control,” “immigration” and “vaccinations” — at the same time.

  • Different users got different links. The company said in a report that some “people were shown a very unusual set of results relative to the other participants, offered some domains seen by no one else. If you were one of these people, you would have no way of knowing what you're missing.”
  • The order of the results varied, with 76 people getting a total of 73 different sets of search results for “vaccinations” in both private and non-private browsing modes.

The company eliminated variations that could have occurred as a result of the search users’ location or, because the users made their queries at the same time, when they made the searches.

The big picture: Google has long touted personalized search results as a user benefit. But nearly a decade ago critics began noting that filtered search results can end up isolating users from information that doesn't match their world views in what Eli Pariser dubbed "filter bubbles."

What they're saying: "Google has claimed to have taken steps to reduce its filter bubble problem, but our latest research reveals a very different story," DuckDuckGo said in its report.

The other side: Google says it is working to improve the quality of its results, including in the boxes of featured content that appear at the top of search results.

  • Google said in an email that instances of personalization in search are infrequent and most common when it comes to clarifying a vague search. It also said that differences in search results can occur thanks to many factors other than direct personalization for a user.

Go deeper

Janet Yellen confirmed as Treasury secretary

Janet Yellen. Photo: Alex Wong/Getty Images

The Senate voted 84-15 to confirm Janet Yellen as Treasury secretary on Monday.

Why it matters: Yellen is the first woman to serve as Treasury secretary, a Cabinet position that will be crucial in helping steer the country out of the pandemic-induced economic crisis.

Dan Primack, author of Pro Rata
3 hours ago - Economy & Business

Scoop: Red Sox strike out on deal to go public

Illustration: Sarah Grillo/Axios

The parent company of the Boston Red Sox and Liverpool F.C. has ended talks to sell a minority ownership stake to RedBall Acquisition, a SPAC formed by longtime baseball executive Billy Beane and investor Gerry Cardinale, Axios has learned from multiple sources. An alternative investment, structured more like private equity, remains possible.

Why it matters: Red Sox fans won't be able to buy stock in the team any time soon.