{"schema_version":"GreyResearchObject 1.2","id":"GSX:WPL-001","slug":"inherited-geography","series_slug":"wealth-and-place","series_title":"Wealth and Place","series_number":"06","paper_number":"01","title":"Inherited Geography","version":"1.0","status":"published","primary_question":"How does South Africa's unequal property geography continue to compound into differences in wealth?","summary":"How South Africa’s unequal property geography continues to compound into differences in wealth.","topics":["inheritance","housing","lifetime-wealth","south-africa"],"geographies":["South Africa"],"keywords":["Inheritance","Housing","Lifetime wealth","South Africa","inherited","geography","south","africas","unequal","property","continue","compound","differences","wealth"],"related_questions":["How does inherited property geography relate to South Africa's racial wealth gap?","How do the type, location, and tenure of inherited property carry advantage across generations?"],"answer":{"conditional_answer":"For matched descendants, the central scenario produces median marketable net worth after forty years of R3.67 million with a titled township home and R5.24 million with a middle-value suburban home. The difference is R1.57 million, in constant 2024 rand.","evidence_status":"modelled","assumption_ids":["GSX:WPL-001:A01"],"result_ids":["GSX:WPL-001:R01","GSX:WPL-001:R02"],"main_limitation":"These are scenarios, not forecasts and not estimates for a racial group. The comparison shows that inherited property conditions can be large enough to matter. It does not show what share of the national wealth gap that mechanism causes.","sensitivity":"high"},"entities":["South Africa","inheritance","housing","lifetime-wealth","south-africa"],"methods":[{"id":"GSX:WPL-001:M01","name":"Matched-descendant property scenarios","model_class":"matched counterfactual","purpose":"Descendants with the same education, real salary, household size and saving behaviour receive different inherited property conditions. The central case is a Monte Carlo scenario in constant 2024 rand over forty years.","implementation_file":"research/source/inherited-geography/model.py"}],"parameters":[{"id":"P01","name":"Matched descendants","symbol":"see the manuscript","description":"The modelled descendants share education, real salary, household size and saving behaviour. The property condition changes.","value":"qualitative","unit":"see the statement","price_year":"2024","scenario_values":{"central":"qualitative"},"source_ids":["GSX:WPL-001:PDF"]}],"equations":["The manuscript states the accounting identities in prose. No separate machine equation list is published."],"scenarios":[{"id":"S01","name":"Central Monte Carlo case, forty years","role":"baseline","description":"In the central Monte Carlo case, median marketable net worth after forty years is R3.04 million with no inherited property, R3.15 million with a communal family residence, R3.67 million with a titled township home, R5.24 million with a middle-value suburban home, R10.59 million with high-value property and R6.51 million with a productive farm, in constant 2024 rand.","assumption_overrides":{"note":"The central scenario uses the registered assumptions."},"probability_status":"illustrative","probability":"not assigned","rationale":"The manuscript labels this as a scenario."}],"unresolved_questions":["How does South Africa's unequal property geography continue to compound into differences in wealth?"],"research_type":"exploratory_simulation","evidence_status":"modelled","peer_review_status":"none","external_review_status":"none","ai_assistance":{"disclosure":"GreyScienx manuscripts are prepared with substantial AI assistance in research, drafting, and computation. This record is not peer-reviewed. The published manuscript does not itemise AI participation by activity.","itemised":false},"date_modified":"2026-09-28","date_note":"Date of this machine record. It is not a separately catalogued manuscript issue date.","authors":[{"name":"Pakang Senosha","affiliation":"University of Pretoria","slug":"pakang-senosha"}],"extraction_status":"full_text_claim_led","manuscript":{"study_id":"GSX:WPL-001","source_path":"research/source/inherited-geography/manuscript.md","source_sha256":"6d46a34c6a355e4b8aa361d9d3b20cb63d863746b76a97a2d92853afbb7e1353","source_bytes":60374,"character_count":60310,"word_count":8399,"headings":[{"level":1,"title":"Inherited Geography","slug":"inherited-geography","line":1},{"level":2,"title":"The Racial Property-Wealth Dividend","slug":"the-racial-property-wealth-dividend","line":3},{"level":1,"title":"PART I: The answer","slug":"part-i-the-answer","line":7},{"level":2,"title":"The law stopped sorting property by race. The property did not move.","slug":"the-law-stopped-sorting-property-by-race-the-property-did-not-move","line":9},{"level":2,"title":"Three kinds of statement","slug":"three-kinds-of-statement","line":31},{"level":2,"title":"Ten findings","slug":"ten-findings","line":43},{"level":1,"title":"PART II: What exactly is inherited?","slug":"part-ii-what-exactly-is-inherited","line":65},{"level":2,"title":"A title deed is not the asset; it is one of the asset's operating systems","slug":"a-title-deed-is-not-the-asset-it-is-one-of-the-asset-s-operating-systems","line":67},{"level":2,"title":"Six inherited conditions","slug":"six-inherited-conditions","line":91},{"level":2,"title":"Marketability can be more unequal than shelter","slug":"marketability-can-be-more-unequal-than-shelter","line":106},{"level":1,"title":"PART III: The inherited map","slug":"part-iii-the-inherited-map","line":114},{"level":2,"title":"Racial categories are historical records, not biological causes","slug":"racial-categories-are-historical-records-not-biological-causes","line":116},{"level":2,"title":"The wealth gap is a stock, not a wage gap","slug":"the-wealth-gap-is-a-stock-not-a-wage-gap","line":124},{"level":2,"title":"Probate sees formal wealth through a narrow window","slug":"probate-sees-formal-wealth-through-a-narrow-window","line":132},{"level":2,"title":"Estate addresses expose the old map","slug":"estate-addresses-expose-the-old-map","line":142},{"level":2,"title":"Formal urban does not mean integrated","slug":"formal-urban-does-not-mean-integrated","line":148},{"level":1,"title":"PART IV: The model","slug":"part-iv-the-model","line":156},{"level":2,"title":"A scale test, not a hidden regression","slug":"a-scale-test-not-a-hidden-regression","line":158},{"level":2,"title":"Multiple heirs and inherited debt","slug":"multiple-heirs-and-inherited-debt","line":177},{"level":2,"title":"Direct channels","slug":"direct-channels","line":183},{"level":2,"title":"Intergenerational property momentum","slug":"intergenerational-property-momentum","line":197},{"level":1,"title":"PART V: Matched descendants","slug":"part-v-matched-descendants","line":207},{"level":2,"title":"The forty-year result","slug":"the-forty-year-result","line":209},{"level":2,"title":"The distributions overlap","slug":"the-distributions-overlap","line":230},{"level":2,"title":"Which channels create the dividend?","slug":"which-channels-create-the-dividend","line":240},{"level":2,"title":"Collateral is an option, not cash","slug":"collateral-is-an-option-not-cash","line":258},{"level":1,"title":"PART VI: From group evidence to a synthetic intake distribution","slug":"part-vi-from-group-evidence-to-a-synthetic-intake-distribution","line":262},{"level":2,"title":"The most uncertain part of the exercise","slug":"the-most-uncertain-part-of-the-exercise","line":264},{"level":2,"title":"Why not assign the probate percentages directly?","slug":"why-not-assign-the-probate-percentages-directly","line":287},{"level":2,"title":"Informal inheritance can narrow the measured gap while preserving the financial gap","slug":"informal-inheritance-can-narrow-the-measured-gap-while-preserving-the-financial-gap","line":293},{"level":1,"title":"PART VII: Agricultural property","slug":"part-vii-agricultural-property","line":299},{"level":2,"title":"The land audit does not say what popular summaries say it says","slug":"the-land-audit-does-not-say-what-popular-summaries-say-it-says","line":301},{"level":2,"title":"Same land, different operating system","slug":"same-land-different-operating-system","line":311},{"level":2,"title":"A farm is an enterprise, not just a field","slug":"a-farm-is-an-enterprise-not-just-a-field","line":340},{"level":1,"title":"PART VIII: What interrupts compounding?","slug":"part-viii-what-interrupts-compounding","line":344},{"level":2,"title":"The house can be rich and the heirs cash-poor","slug":"the-house-can-be-rich-and-the-heirs-cash-poor","line":346},{"level":2,"title":"Title backlogs have a balance-sheet cost","slug":"title-backlogs-have-a-balance-sheet-cost","line":354},{"level":2,"title":"Debt and upkeep travel with the asset","slug":"debt-and-upkeep-travel-with-the-asset","line":368},{"level":2,"title":"Early help may matter more than a late bequest","slug":"early-help-may-matter-more-than-a-late-bequest","line":374},{"level":1,"title":"PART IX: How much of the wealth gap?","slug":"part-ix-how-much-of-the-wealth-gap","line":378},{"level":2,"title":"A decomposition that the data do not yet permit","slug":"a-decomposition-that-the-data-do-not-yet-permit","line":380},{"level":2,"title":"What the scale comparison does establish","slug":"what-the-scale-comparison-does-establish","line":395},{"level":2,"title":"Could the mechanism be smaller?","slug":"could-the-mechanism-be-smaller","line":411},{"level":2,"title":"Could it be larger?","slug":"could-it-be-larger","line":423},{"level":1,"title":"PART X: Policy implications","slug":"part-x-policy-implications","line":440},{"level":2,"title":"Convert shelter into optionality without converting every right into a commodity","slug":"convert-shelter-into-optionality-without-converting-every-right-into-a-commodity","line":442},{"level":2,"title":"Treat location as part of housing value","slug":"treat-location-as-part-of-housing-value","line":450},{"level":2,"title":"Make low-value markets cheaper to transact","slug":"make-low-value-markets-cheaper-to-transact","line":466},{"level":2,"title":"Separate land transfer from farm viability","slug":"separate-land-transfer-from-farm-viability","line":472},{"level":2,"title":"Build an inheritance data spine","slug":"build-an-inheritance-data-spine","line":483},{"level":2,"title":"Measure control as well as household ownership","slug":"measure-control-as-well-as-household-ownership","line":497},{"level":1,"title":"PART XI: Limits and falsification","slug":"part-xi-limits-and-falsification","line":501},{"level":2,"title":"What would change the conclusion?","slug":"what-would-change-the-conclusion","line":503},{"level":2,"title":"Specific limitations","slug":"specific-limitations","line":515},{"level":1,"title":"PART XII: Final answer","slug":"part-xii-final-answer","line":537},{"level":2,"title":"The geography is still compounding, but not through one price","slug":"the-geography-is-still-compounding-but-not-through-one-price","line":539},{"level":1,"title":"APPENDIX: Model reading guide","slug":"appendix-model-reading-guide","line":553},{"level":2,"title":"Central assumptions","slug":"central-assumptions","line":555},{"level":2,"title":"Output definitions","slug":"output-definitions","line":569},{"level":2,"title":"Reproducibility","slug":"reproducibility","line":579},{"level":1,"title":"References","slug":"references","line":583}]},"claims":[{"id":"GSX:WPL-001:C01","local_id":"C01","claim":"For matched 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