ABSTRACT Despite extensive studies being devoted to housing affordability in Australia, few have investigated housing affordability at a disaggregated level. This is in spite of the fact that there are existing socio-economic and demographic disparities across different regions of a city. This study aims to fill this gap by examining housing affordability in Sydney, a city that is characterised by diverse demographic and socio-economic mix, from a sub-city perspective. Two dimensions of affordability are assessed from 1991 to 2016: entry-level and ongoing housing affordability. The study finds that entry-level housing remains extremely unaffordable in all regions of Greater Sydney, although the level of unaffordability varies across regions. Specifically, the deterioration in housing affordability is more obvious in low-income regions such as Western Sydney. In addition, the ongoing housing affordability of those who have entered the market improves considerably within 5–10 years, although there are significant variations between different regions. Importantly, residents in low-income regions such as Western Sydney take a longer period to improve their ongoing affordability. The findings of differential geography of housing affordability have some profound policy implications. Policymakers should consider the disparities across different regions by formulating a more targeted and regionally balanced housing policy.

中文翻译：

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悉尼住房负担能力的差异地理：分解方法

摘要 尽管对澳大利亚的住房负担能力进行了广泛的研究，但很少有人对住房负担能力进行分类调查。尽管一个城市的不同地区存在社会经济和人口差异。本研究旨在通过从次城市的角度考察悉尼的住房负担能力来填补这一空白，悉尼这座城市的特点是人口和社会经济结构多样化。从 1991 年到 2016 年评估了负担能力的两个维度：入门级和持续的住房负担能力。研究发现，大悉尼所有地区的入门级住房仍然极其难以负担，尽管负担能力因地区而异。具体来说，住房负担能力的恶化在西悉尼等低收入地区更为明显。此外，尽管不同地区之间存在显着差异，但进入市场的人的持续住房负担能力在 5-10 年内显着改善。重要的是，西悉尼等低收入地区的居民需要更长的时间来改善他们的持续负担能力。住房负担能力差异地理的研究结果具有一些深刻的政策含义。政策制定者应通过制定更有针对性和区域平衡的住房政策来考虑不同地区之间的差异。尽管不同地区之间存在显着差异。重要的是，西悉尼等低收入地区的居民需要更长的时间来改善他们的持续负担能力。住房负担能力差异地理的研究结果具有一些深刻的政策含义。政策制定者应通过制定更有针对性和区域平衡的住房政策来考虑不同地区之间的差异。尽管不同地区之间存在显着差异。重要的是，西悉尼等低收入地区的居民需要更长的时间来改善他们的持续负担能力。住房负担能力差异地理的研究结果具有一些深刻的政策含义。政策制定者应通过制定更有针对性和区域平衡的住房政策来考虑不同地区之间的差异。