who gave the cyclical theory of socail change
Cyclical theory The cyclical theory refers to a model used by historian Arthur Schlesinger to attempt to explicate the fluctuations in politics throughout American history. Liberalism and conservatism are rooted in the "national mood" that shows a continuing shift in national involvement between public purpose and private interest. Each of these cycles includes a phase of dominant public interest, a transition phase, and a phase of prevalent private interest.