theorem price_leads_quantity (e : TwoWorldEconomy N) (n : Fin N)
(hr : 0 < sectorRelaxRate e.toNSectorEconomy n)
(hbound : sectorRelaxRate e.toNSectorEconomy n < e.v_price n) :
priceRelaxTime e n < quantityRelaxTime e n hr :=
price_faster_than_quantity e n hr hboundTemporal Ordering Rules from Two-World Timescale Separation