Activism consists of efforts to promote, impede, or direct social, political, economic, or environmental change, or stasis. Activism can take a wide range of forms from writing letters to newspapers or politicians, political campaigning, economic activism such as boycotts or preferentially patronizing businesses, rallies, street marches, strikes, sit-ins, and hunger strikes. Activists can function in roles as public officials, as in judicial activism. Arthur Schlesinger Jr.