theorem timescaleGap_monotone_in_relaxRate
{r1 r2 : ℝ} (hr1 : 0 < r1) (hle : r1 ≤ r2)
{v : ℝ} (hv : 0 < v) :
v / r2 ≤ v / r1 :=
div_le_div_of_nonneg_left (le_of_lt hv) hr1 hleTwo-World Economy: Price vs. Production Timescale Separation