{
  "abstract": "Using New Zealand's Integrated Data Infrastructure (IDI), we evaluate the effects of the 2010–2011 Canterbury earthquakes on household income and expenditure. We link data from the Household Economic Survey (HES) to administrative address histories and meshblock-level earthquake intensity, and implement a propensity-score-matched difference-in-differences (PSM-DiD) design comparing exposed Canterbury households with matched North Island households. We find that total and regular household income increase by approximately 7000–7900 New Zealand dollars (NZD) in both low- and high-intensity areas. Total expenditure shows no clear average DiD effect, but its composition changes substantially. In high-intensity areas, the magnitude of recorded receipts-and-refunds entries, an HES category that includes insurance reimbursements and related inflows, more than doubles, while spending on general insurance, transportation, telecommunications, diary-recorded day-to-day purchases, fees and subscriptions also increases. Expenditure responses are broader among above-median-income households than among below-median-income households. Households later observed outside Canterbury have housing costs around NZD 25 000 higher and mortgage and loan payments around NZD 9600 lower than households that remain, while conditional income differences are statistically insignificant. These findings show that post-disaster income growth can coexist with heterogeneous recovery costs and substantial changes in household expenditure.",
  "abstract_shown": true,
  "affiliations": [
    "Victoria University of Wellington (Wellington, New Zealand)"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 3,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Quanfu Zhang",
      "orcid": "0009-0001-7224-7606"
    },
    {
      "name": "Ilan Noy",
      "orcid": "0000-0003-3214-6568"
    },
    {
      "name": "Yigit Saglam",
      "orcid": "0000-0002-0391-9237"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/60daczj5hb1js.bib",
  "cited_by": 0,
  "doi": "10.5194/nhess-26-4937-2026",
  "fulltext_url": null,
  "id": "60daczj5hb1js",
  "issns": [
    "1684-9981"
  ],
  "landing_url": "https://nhess.copernicus.org/articles/26/4937/2026/",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "3313|Earthquake and Disaster Impact Studies"
    ]
  ],
  "openalex": "W7134887830",
  "pdf_url": "https://nhess.copernicus.org/articles/26/4937/2026/nhess-26-4937-2026.pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-13",
  "publisher": "Copernicus GmbH",
  "ris": "https://research.draconitic.com/paper/60daczj5hb1js.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:20:52Z",
      "native_id": "10.5194/nhess-26-4937-2026",
      "source": "crossref",
      "url": "https://nhess.copernicus.org/articles/26/4937/2026/"
    }
  ],
  "subjects": [
    {
      "field": "earth",
      "origin": "issn:1684-9981",
      "subfield": "geophysics"
    }
  ],
  "title": "The impact of the Canterbury earthquakes on household income and expenditure in the Canterbury region in New Zealand",
  "title_text": "The impact of the Canterbury earthquakes on household income and expenditure in the Canterbury region in New Zealand",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:20:52Z",
  "url": "https://research.draconitic.com/paper/60daczj5hb1js",
  "venue": "Natural Hazards and Earth System Sciences",
  "versions": [
    {
      "doi": "10.5194/egusphere-2026-1005",
      "pid": null,
      "relation": "preprint",
      "title": null,
      "venue": null
    }
  ]
}