WHEN THE NEW GOVERNMENTS OF UNDERDEVELOPED AREAS supplanted colonial rule, many were optimistic that these governments could operate within a democratic framework. But these nascent governments drifted into authoritarian forms of political life as they faced the exigencies of self-rule. Representative institutions on the Western pattern broke down and were replaced by single-party arrangements headed by charismatic leaders. This form of government, in turn, has tended to give way to bureaucratic and military regimes.