We tend to underreact to risks that are familiar -- they kind of recede into the background -- and overreact to risks that are new , in part because we do n't know how bad they are , '' said George Loewenstein , a professor of psychology and economics at Carnegie Mellon University in Pittsburgh .
Pittsburgh /location/location/contains Carnegie Mellon University
George Loewenstein /business/person/company Carnegie Mellon University
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