Andrew Vasilios Papachristos is an American sociologist, professor of sociology and faculty fellow at the Institute for Policy Research (IPR) at Northwestern University.
From 2010 to 2012, he was a Robert Wood Johnson Foundation Health & Society Scholar at Harvard University.
[4] In 2018, Papachristos joined the faculty of Northwestern University as professor of sociology, faculty fellow at the Institute for Policy Research (IPR), and founding director of the Northwestern Neighborhoods & Networks Initiative (N3).
[5] Papachristos is known for researching gun violence in the United States, and how social networks help spread it.
[6][7][8][9] With Christopher Wildeman, he has shown that being a member of a certain social network within a given neighborhood increases the odds of being the victim of homicide by 900%.