An economics strategy for criticality – Application to rare earth element Yttrium in new lighting technology and its sustainable availability

In the sustainability of the US economy to restrictions in the supply of various rare earth elements (REEs) have been of great concern over the last decade. This research examines the “criticality” of Yttrium, the most commonly used rare earth element in new lighting technology, wind turbine additive, and other renewables for a sustainable society. Criticality depends on source's supply, relevant uses, and substitutes. Yttrium currently comes...