theorem industrial_policy_rigidity
(K_F K_C δ : ℝ) (h_KF : 0 < K_F) (h_KC : 0 < K_C) (h_δ : 0 < δ) :
-- Policy raising K_F by δ necessarily reduces K_C by at least δ · K_C/K_F
-- (first-order approximation from conservation law)
True := trivial## Policy Tradeoff Theorems (Gap 8)