Chaza izinga lokungasebenzi nokuthi libonakaliswa kanjani emazweni amaningi.
Amaphesenti abasebenzi abaphelele abangasebenzi futhi abafuna umsebenzi okhokhelwayo. Izinga lokuntuleka kwemisebenzi (# yabantu abangasebenzi / # abasebenzayo) = % Izinga lokungasebenzi lingesinye sezibalo ezibhekwa kakhulu ngoba izinga elikhulayo libhekwa njengophawu lokwehla komnotho okungase kudinge ukwehliswa kwezinga lenzalo. Ngendlela efanayo, ukwehla kwezinga kukhombisa umnotho okhulayo ovame ukuhambisana nezinga lokwehla kwamandla emali eliphakeme futhi kungadinga ukwanda kwamanani enzalo.