Iyini i-Gross domestic product (GDP)?
Umkhiqizo wasekhaya ophelele (i-GDP) uyisilinganiso semali senani lemakethe lazo zonke izimpahla nezinsizakalo zokugcina ezikhiqizwa futhi zithengiswe esikhathini esithile ezweni noma emazweni, ngokuvamile "ngaphandle kokubalwa kabili kwezimpahla nezinsizakalo eziphakathi ezisetshenziselwa ukuzikhiqiza". Ngokuvamile uhulumeni wezwe elilodwa usebenzisa i-GDP ukuze alinganise isimo somnotho walo. Ngenxa yesimo sayo esiyinkimbinkimbi nesiqondayo, lesi silinganiso sivame ukubuyekezwa ngaphambi kokuba sibhekwe njengesibonakaliso esinokwethenjelwa. Nokho, i-GDP (egameni) ngomuntu ngamunye ayibonakalisi umehluko ezindlekweni zokuphila kanye namanani okwenyuka kwamandla emali emazweni; ngakho-ke, ukusebenzisa isisekelo se-GDP ngomuntu ngamunye ngokulingana kwamandla okuthenga (i-PPP) kungaba wusizo kakhulu uma kuqhathaniswa namazinga okuphila phakathi kwezizwe, kuyilapho i-GDP yegama iyasiza kakhulu uma kuqhathaniswa nomnotho kazwelonke emakethe yamazwe ngamazwe. Ingqikithi ye-GDP ingahlukaniswa futhi ibe umnikelo womkhakha ngamunye noma umkhakha wezomnotho. Isilinganiso se-GDP kubantu abaphelele esifundeni yi-GDP yomuntu ngamunye (ebizwa nangokuthi yi-Mean Standard of Living).