Analyzing the emerging forms of society around the world, Burnham saw certain commonalities between the economic formations of Nazi Germany, Stalinist Russia, and America under Roosevelt's New Deal. Burnham argued that in the short period since the First World War, a new society had emerged in which a social group or class of "managers" had waged a "drive for social dominance, for power and privilege, for the position of ruling class." For at least the previous decade, there had grown in America the idea of a "separation of ownership and control" of the modern corporation, notably expounded in "The Modern Corporation and Private Property" by Berle and Means. Burnham expanded this concept, arguing that whether ownership was corporate and private or statist and governmental, the essential demarcation between the ruling elite (executives and managers backed by bureaucrats and functionaries) and the mass of society was not ownership so much as control of the means of production.