A propósito das recentes declarações de Barack Obama sobre os supostos efeitos negativos da tecnologia na taxa de emprego, parece-me indicado recomendar a leitura de um pequeno texto de Henry Hazlitt, publicado em 1946 no seu Economics in One Lesson, o qual começa da seguinte forma:
Among the most viable of all economic delusions is the belief that machines on net balance create unemployment. Destroyed a thousand times, it has risen a thousand times out of its own ashes as hardy and vigorous as ever. Whenever there is long-continued mass unemployment, machines get the blame anew. This fallacy is still the basis of many labor union practices. The public tolerates these practices because it either believes at bottom that the unions are right, or is too confused to see just why they are wrong.
The belief that machines cause unemployment, when held with any logical consistency, leads to preposterous conclusions. Not only must we be causing unemployment with every technological improvement we make today, but primitive man must have started causing it with the first efforts he made to save himself from needless toil and sweat.