Why Do People Believe in Conspiracy Theories?

President Barack Obama has been a busy man while in office: he concocted a fake birth certificate to hide his true identity as a foreigner, created “death panels” to determine who would live and who would die under his health care plan, conspired to destroy religious liberty by mandating contraceptives for religious institutions, blew up the Deepwater Horizon offshore drilling rig to garner support for his environmental agenda, masterminded Syrian gas attacks as a pretext to war, orchestrated the shooting of a tsa agent to strengthen that agency’s powers, ordered the Sandy Hook school massacre to push through gun-control legislation, and built concentration camps in which to place Americans who resist.

Do people really believe such conspiracy theories? They do, and in disturbingly high numbers, according to recent empirical research collected by University of Miami political scientists Joseph E. Uscinski and Joseph M. Parent and presented in their 2014 book American Conspiracy Theories (Oxford University Press). About a third of Americans, for example, believe the “birther” conspiracy theory that Obama is a foreigner. About as many believe that 9/11 was an “inside job” by the Bush administration.

The idea that such beliefs are held only by a bunch of nerdy white guys living in their parents’ basements is a myth. Surveys by Uscinski and Parent show that believers in conspiracies “cut across gender, age, race, income, political affiliation, educational level, and occupational status.” People on both the political left and right, for example, believe in conspiracies roughly equally, although each finds different cabals. Liberals are more likely to suspect that media sources and political parties are pawns of rich capitalists and corporations, whereas conservatives tend to believe that academics and liberal elites control these same institutions. GMO conspiracy theories are embraced primarily by those on the left (who accuse, for example, Monsanto of conspiring to destroy small farmers), whereas climate change conspiracy theories are endorsed primarily by those on the right (who inculpate, for example, academic climate scientists for manipulating data to destroy the American economy)…

[continues at Scientific American]