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...ript/transcript.php?storyId=105012144 |episodelink=|url=http://www.npr.org/templates/story/story.php?storyId=105012144 |network=NPR|accessdate=1 August 2014}}</ ...pplied natural conceptions of [[psychology]] and self-interest to economic systems; and [[sociology|sociologists]] criticised the current [[social order]] for ...