Ignacy Sachs e a nave espacial Terra.

This paper is a short survey of the work of Ignacy Sachs - one of the pioneers of structuralist development economics and an outstanding economist dedicated to environmental economics. Sachs is PoHsh and a disciple of Michael Kalecki, but he is aiso a Brazilian and a French, given his strong ties with these rwo countries. He knows the importance of markets in the coordination of the economy, but, as a de-velopmental economist, he atttibutes a key role to economic planning, Only through the dehberate action of the state it will be possible to achieve economic growth, reduction of inequalities, and protection of the environmsnts - only through de-liberate action way men and women will be able to conduct the Spaceship Earth to economic, social and environmental development and assure a decent work to ali. [ABSTRACT FROM AUTHOR]