In contrast to previous studies that have looked to differences between Islam and Christianity for the solution to the puzzle, this pioneering work proposes that a country's system of landholding primarily determined how successfully it recovered from the calamity of the Black Death. Stuart Borsch compares the specific cases of Egypt and England, countries whose economies were based in agriculture and whose pre-plague levels of total and agrarian gross domestic product were roughly equivalent. Undertaking a thorough analysis of medieval economic data, he cogently explains why Egypt's centralized and urban landholding system was unable to adapt to massive depopulation, while England's localized and rural landholding system had fully recovered by the year 1500.