Four Olds
Later, as the Communist regime changed the structure of Chinese society through economic reform, the structure of the Chinese family was altered. "The Four Olds" ("sijiu") – old ideas, old habits, old customs, old cultures – were discouraged and were replaced by Communist ideology, particularly during the Cultural Revolution. The economy was shifted to total government control with few chances to own private property and communal property. Collectivization destroyed "clan-based" systems and had a great effect on motivation of workers and family loyalties.