def quantityRelaxTime (e : TwoWorldEconomy N) (n : Fin N) (_hr : 0 < sectorRelaxRate e.toNSectorEconomy n) : ℝ := 1 / sectorRelaxRate e.toNSectorEconomy n
thesis/CESProofs/Dynamics/TwoWorldDefs.lean:88
Two-World Economy: Price vs. Production Timescale Separation