A re-evaluation of economic developments of the later Middle Ages from the Black Death of 1348, to the Peasant's Revolt of 1381, to the Battle of Bosworth Field in 1485. Bridbury suggests that historians, who have been preoccupied with absolute levels of output to the detriment of more important questions of output per head, have ignored the disasterous fall of living standards that occurred in the thirteenth century, and the astonishing rise in living standards that came later.