theorem ramsey_inverse_elasticity {a e₁ e₂ : ℝ}
(ha : 0 < a) (he₁ : 0 < e₁) (he₂ : 0 < e₂) (he : e₁ < e₂) :
saezTopRate a e₂ < saezTopRate a e₁ :=
saezTopRate_decreasing_in_e ha he₁ he₂ heGrowth and Dynamic Tax Revenue (Layer 4-5 of Macro Extension)