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Artigo científico

A note on real estate appraisal in Brazil

Marzagão, Thiago; Ferreira, Rodrigo; Sales, Leonardo

O documento é disponibilizado pela fonte de origem, que mantém a versão integral e as condições de uso.

Resumo

Brazilian banks commonly use linear regression to appraise real estate: they regress price on features like area, location, etc, and use the resulting model to estimate the market value of the target property. But Brazilian banks do not test the predictive performance of those models, which for all we know are no better than random guesses. That introduces huge inefficiencies in the real estate market. Here we propose a machine learning approach to the problem. We use real estate data scraped from 15 thousand online listings and use it to fit a boosted trees model. The resulting model has a median absolute error of 8,16%. We provide all data and source code.

Ficha do documento

Tipo
Artigo científico
Ano
2021
Instituição
EGV EPGE
Idioma
Inglês
Acesso
Não informado
Identificador
oai:ojs.periodicos.fgv.br:article/79823

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