Khipha izizathu zokuthi kungani i-inverted yield curve ingenzeka, bese uyifaka ohlwini lwezinhlamvu.
Context:Ngaphansi kwezimo ezingavamile, abatshalizimali bazokwaneliswa yinzuzo ephansi ehambisana nesikweletu sesikhathi eside esinobungozi obuncane uma becabanga ukuthi umnotho uzongena ekuwohlokeni komnotho esikhathini esizayo esiseduze. Isibonelo, i-S&P 500 yabhekana nokwehla okukhulu maphakathi no-2007, lapho yavuselelwa khona ngokuphelele ekuqaleni kuka-2013. Abatshalizimali ababethenge ama-Treasury Bonds aneminyaka eyishumi ngo-2006 babezothola inzuzo ephephile futhi engaguquguquki kuze kube ngu-2015, mhlawumbe bathole inzuzo engcono kunaleyo etshalwa ezimakethe zamasheya phakathi naleyo nkathi yokuguquguquka.  Umbhalo kaCampbell Harvey ongusosayensi wezomnotho ngo-1986 wabonisa ukuthi ijika lenzuzo eliguquguqukayo libikezela ngokunembile ukwehla kwamandla omnotho e-U.S. Ijika eliguquguqukayo liye labonisa isimo sezomnotho esibi esikhathini esizayo izikhathi eziyisishiyagalombili kusukela ngo-1970.  Ngaphezu kokubonisa ukuthi kungenzeka kube nokwehla kwezomnotho, amajika enzuzo aphendukayo abuye asho ukuthi imakethe ikholelwa ukuthi ukwehla kwamandla emali kuzohlala kuphansi. Lokhu kungenxa yokuthi, ngisho noma kunokwehla kwamandla omnotho, isivuno esiphansi sezibopho sisazobhekana nokwehla kwamandla emali. Kodwa-ke, izici zobuchwepheshe, ezinjengokugijimela ekhwalithi noma izimo zomnotho noma zezimali zomhlaba wonke, zingadala ukwanda kwesidingo sezibopho ekugcineni okude kwejika lenzuzo, okudala ukuthi amanani esikhathi eside ehle. Ukwehla kwamanani entengo yesikhathi eside lapho kukhona ukwenyuka kwamanani entengo yesikhathi esifushane kwaziwa ngokuthi "i-Greenspan's Conundrum".
Kunezizathu ezimbili zokuthi kungani i-inverted yield curve ingenzeka 1. Izinkomo Lapho abatshalizimali becabanga ukuthi umnotho uzokwehla esikhathini esizayo esiseduze, bazokwaneliseka ngembuyiselo ephansi ehambisana nezikweletu zesikhathi eside ezinobungozi obuncane, okungenzeka ukuthi kuholele ekubuyiselweni okuphezulu kunokutshalwa kwezimali kwamasheya ngesikhathi esifanayo. 2. Izingelosi Lapho imakethe ikholelwa ukuthi ukwehla kwamandla emali kuzohlala kuphansi, kuyoba nesidingo esikhulu sezibopho ekugcineni okude kwejika lenzuzo, okubangela ukuthi amanani emali yesikhathi eside ehle.