The concept of social development and, notably, that of the responsibility of public authorities and agencies for its promotion and implementation were further elaborated in the Declaration on Social Progress and Development,a which itself builds on the elements of Chapter IX of the Charter.
社会发展的概念，尤其是公共机关和机构促进和实现社会发展的责任概念，在《社会进步及发展宣言》a 中作了进一步阐述。