Numerare Est Errare: Agricultural Output and Food Supply in England Before and During the Industrial Revolution
评述了关于中世纪至工业革命期间英格兰农业产出与食品供应的四种估算，指出其矛盾之处，并提出更符合历史条件的折中估算。
Carefully constructed but fallible historical estimates of GDP and agricultural output inform our understanding of the preindustrial origins of economic growth. Here we review four recent attempts at estimating agricultural output and food availability in England and Wales at different points between the Middle Ages and the Industrial Revolution. We highlight their contrasting implications for trends in well-being and nutritional status over time. Building on these estimates, we propose our own tentative, compromise estimate of food availability. The compromise estimates are more coherent with our understanding of conditions before and during the Industrial Revolution.