Development administration emerged in the 1960s to help implement policies and plans for nation-building and socio-economic progress in developing countries. It aims to strengthen administrative machinery to facilitate defined programs of social and economic progress by making change attractive to populations. Key elements include planned and coordinated efforts, a goal-oriented and people-centered approach, and creating management capacities. Problems include a lack of experienced administrators and modern techniques as well as procedural delays and poor implementation. The nature of development has changed from a 19th century focus on individualism and economic growth to a post-WWII emphasis on state-led development and goals like poverty reduction, self-reliance, and resource mobilization.