{"id":"GSX:HH-002:A03","local_id":"A03","name":"Johannesburg housing bundle","statement":"Independent housing in the Johannesburg scenario costs R9,600 a month in rent and R7,200 a month in other housing basics. The manuscript treats these as transparent city scenarios, not estimated city means.","value":"9600","unit":"constant 2026 rand per month, rent","type":"model assumption","provenance":"Manuscript city scenario, with the rent scale anchored on a published Gauteng rental average","evidence_strength":"scenario","sensitivity":"high","alternatives":["Cape Town rent R12,500","Durban rent R9,400","Johannesburg rent 30% lower"],"href":"https://greyscienx.com/research/household-economics/the-first-three-years-advantage/assumptions/A03"}