theorem K_decreasing_in_herfindahl_sector
{J : ℕ} {ρ : ℝ} (hρ : ρ < 1)
{a₁ a₂ : Fin J → ℝ}
(hH : herfindahlIndex J a₁ < herfindahlIndex J a₂) :
generalCurvatureK J ρ a₂ < generalCurvatureK J ρ a₁ := by
unfold generalCurvatureK herfindahlIndex at *
nlinarith [show 0 < 1 - ρ from by linarith]## Weighted N-Sector Economy