The Jevons paradox (pronounced /ˈdʒɛ.vənz/, JEV-ənz) or Jevons effect is an economic phenomenon said to occur when technological improvements that increase the efficiency of a resource’s use lead to a rise, rather than a fall, in total consumption of that resource.[1][2][3][4] Greater efficiency reduces the amount of the resource needed per application, lowering its effective cost; if demand is sufficiently price elastic, this induces demand, frequently resulting in a net increase of total resource consumption.[5]