Schumacher's twenty years as Chief Economic Adviser to the British National Coal Board — the hands-on experience of industrial-scale economic management from which his critique of the industrial paradigm emerged, and without which it would have been dismissible.
E. F. Schumacher served as Chief Economic Adviser to the British National Coal Board from 1950 to 1970. The position gave him direct responsibility for economic analysis of one of the largest industrial enterprises in the United Kingdom — reading balance sheets at scale, modeling extraction economics, advising on industrial organization across hundreds of mines employing hundreds of thousands of workers. He understood efficiency from the inside, with dirt under his fingernails, and this provides his subsequent critique of the industrial paradigm with authority that purely philosophical critics lacked. Schumacher did not reject the logic of industrial efficiency because he did not understand it. He rejected it because he had lived inside it for two decades and concluded that the logic was not wrong but incomplete — that it measured what the coal produced without measuring what the production did to the mines, the land above them, or the people whose labor generated the output.