Peter Norvig did one of these.[1] The authors can fit data better by adding parameters, which is no surprise. But these models omit an important feature of the

Peter Norvig did one of these.[1] The authors can fit data better by adding parameters, which is no surprise. But these models omit an important feature of the real world: growth. "Yard sale" models are zero-sum. [1] http://nbviewer.ipython.org/url/norvig.com/ipython/Economics.ipynb http://nbviewer.ipython.org/url/norvig.com/ipython/Economics...