Structural change in basic industries is usually interpreted as an autonomous economic process. Some authors claim that there is a tendency to use the "end of the era of materials", thus resulting in a decline of the basic industries. Such a process would obviously benefit the environment....

1. Introduction -- 2. Conceptual background and welfare terminology -- 3. Other approaches to welfare economics -- 4. A positive basis : the learning theory of consumption -- 5. An evolutionary theory of welfare -- 6. Evolutionary welfare economics -- 7. Concluding remarks.