Ukusimama komnotho waphesheya kwezilwandle kwadala isidingo esinamandla sensimbi, futhi umgomo wezimali wokukhulisa amanani ezimakethe zensimbi ukhuphuke kakhulu.

Abanye ababambiqhaza bemakethe babonise ukuthi amanani ensimbi akhuphuke kancane kancane ngenxa yesidingo esinamandla semakethe yensimbi yaphesheya kwekota yokuqala; ngakho-ke, ama-oda okuthunyelwa kwamanye amazwe kanye nomthamo wokuthekelisa kukhuphuke kakhulu ngenxa yokuzimisela kwamabhizinisi asekhaya ukuthekelisa.

Izintengo zensimbi zenyuka kakhulu e-Europe nase-US, kanti ukukhuphuka bekuphansi kakhulu e-Asia.

Izimakethe zensimbi zaseYurophu naseMelika zaqhubeka nokukhuphuka kusukela engxenyeni yesibili yonyaka odlule. Uma kukhona ushintsho emnothweni, izimakethe kwezinye izifunda zizothinteka.