Reasons advanced for the occurrence of the revolution and its populist, nationalist and, later, Shi’a Islamic character include a conservative backlash against the Westernizing and secularizing efforts of the Western-backed Shah, a liberal backlash to social injustice, a rise in expectations created by the 1973 oil revenue windfall and an overly ambitious economic program, anger over a short, sharp economic contraction in 1977–78, and other shortcomings of the previous regime.
[GARD]