The document discusses various definitions and theories of development. It describes development as both a state and a process of change. Todaro defines development as improving living standards, self-esteem, and freedom of choice in a multidimensional process. Alternative views see development as economic growth, modernization, distributive justice, or dependent on colonial relationships. Popular development theory emphasizes local solutions and participation over universal theories. Theories of underdevelopment include vicious circles, colonial exploitation disrupting traditional societies, and the international division of labor creating dependence. No single theory can fully explain complex development issues.