Dzokorora ndima iri pasi apa uye wozopindura mubvunzo unotevera mumutauro mumwe chete sezvinotaurwa mundima iyi: Passage: Malone et al. vakawana kuti mamwe mabhizimisi emhando, sezvakatsanangurwa navo, zvirokwazvo akaita zviri nani kupfuura vamwe mu dataset inoumbwa nemakambani makuru eUnited States, munguva ya1998 kusvika 2002, asi havana kuratidza kana kuvapo kwebhizimisi yemhando kwakakosha. Mubvunzo: Chii chakawanikwa naMalone?
kuti mimwe mienzaniso yebhizimisi, sezvinorondedzerwa navo, zvirokwazvo yakaita zviri nani kupfuura vamwe muzvinyorwa zvemashoko zvinoumbwa nemakambani makuru eUnited States