If you were a historian trying to estimate things like historical poverty rate then this (and the “gdp” of subsistence farming or home crafts like spinning and

If you were a historian trying to estimate things like historical poverty rate then this (and the “gdp” of subsistence farming or home crafts like spinning and weaving cloth for one’s own clothes) would, I hope, be one of the first things you would consider. Fortunately historians do consider this and work hard to produce results that don’t naively apply today’s economic systems and metrics to the past.