Revista de Economia Política, 33 (2), abril 2013: 360-366.
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 Polish and a disciple of Michael Kalecki, but he is also a Brazilian and a French, given his strong ties with these two countries. He knows the importance of markets in the coordination of the economy, but, as a developmental economist, he attributes a key role to economic planning. Only through the deliberate action of the state it will be possible to achieve economic growth, reduction of inequalities, and protection of the environments – only through deliberate 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 all.