Grasping Reality on TypePad, by Brad DeLong

DRAFT: Ancient Economies: A Malthusian Model : The math for complicating the standard Solow Growth Model with (a) a rate of population growth that depends positively on the excess of spending on necessities above "subsistence" and (b) a level of the efficiency-of-labor that depends inversely on population, as a higher population induces resource scarcity that makes labor less productive. For understanding both the long-term apparent stagnation of living standards between the Neolithic and the Industrial Revolutions, and for understanding the rise and fall of ancient civilizations. Question: How should we add on to the Python class for the Solow Growth Model to turn this into a tool for doing problem sets for Econ 101b (and perhaps 135):

https://nbviewer.jupyter.org/github/braddelong/LS2019/blob/master/2019-08-17-Ancient_Economies.ipynb