Rudolph Joseph Rummel (October 21, 1932 – March 2, 2014) was a political scientist and professor at the Indiana University, Yale University, and University of Hawaiʻi. He spent his career studying data on collective violence and war with a view toward helping their resolution or elimination. Contrasting genocide, Rummel coined the term democide for murder by government such as the Stalinist purges and Mao Zedong's Cultural Revolution.