Vaenderera mberi vachiti Zimbabwe ichasaina zviga nezvibvumirano zvekuchengetedza hupfumi nemakambani edzimwe nyika muno kana kuti maBilateral Investment Protection and Promotion Agreements uye munguva pfupi inotevera hurumende ichange ichikumbira paramende kuti itsigire zvibvumirano izvi sezvinodiwa nemutemo wenyika .