theorem tax_wedge_pos {τ₁ τ₂ ρ_time δ : ℝ}
(hρ : 0 < ρ_time) (hτ₁ : τ₁ < 1) (hτ₂ : τ₂ < 1) (hτ : τ₁ < τ₂) :
0 < eulerSteadyStateMPK τ₂ ρ_time δ - eulerSteadyStateMPK τ₁ ρ_time δ := by
rw [tax_wedge_on_MPK hτ₁ hτ₂]
linarith [eulerSteadyStateReturn_increasing_in_τ hρ hτ₁ hτ₂ hτ]Accumulation Dynamics (Layer 2 of Macro Extension)