Eliezer, I don’t know what is your implicit referent to divide “tremendous” from “fractional” influence of growth of X on growth of Y. Perhaps you can define that clearly in a very simple model, but I don’t see how to generalize that to more realistic models.
Derek, I’m not sure your proposed definition makes sense outside of a one-dimensional model.
Eliezer, I don’t know what is your implicit referent to divide “tremendous” from “fractional” influence of growth of X on growth of Y. Perhaps you can define that clearly in a very simple model, but I don’t see how to generalize that to more realistic models.
Derek, I’m not sure your proposed definition makes sense outside of a one-dimensional model.