theorem combined_rate_steady_state {β_L V T β_C K_eff Tstar β_I G T_min β_S E : ℝ}
(h_balance : learningFrictionRate β_L V T + cascadeFrictionRate β_C K_eff T Tstar
+ institutionalFrictionRate β_I G T T_min = 0) :
combinedFrictionRate β_L V T β_C K_eff Tstar β_I G T_min β_S E 0 = 0 := by
simp only [combinedFrictionRate, shockFrictionImpulse, mul_zero, add_zero]
exact h_balanceResults T-80 through T-89: Endogenous Information Friction Dynamics