Articles | Volume 26, issue 10
https://doi.org/10.5194/nhess-26-4937-2026
https://doi.org/10.5194/nhess-26-4937-2026
Research article
 | 
13 Oct 2026
Research article |  | 13 Oct 2026

The impact of the Canterbury earthquakes on household income and expenditure in the Canterbury region in New Zealand

Quanfu Zhang, Ilan Noy, and Yigit Saglam

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Cited articles

Abdeljawad, Y. and Noy, I.: The impact of 2010–11 Christchurch earthquakes on the individuals' income by sector and income level, Ann. Reg. Sci., 74, 60, https://doi.org/10.1007/s00168-025-01392-4, 2025a. 
Abdeljawad, Y. and Noy, I.: The impact of the Christchurch earthquakes (2010–2011) on labour productivity in the Canterbury region in New Zealand, Environ. Hazards, 24, 178–193, https://doi.org/10.1080/17477891.2024.2355312, 2025b. 
Angrist, J. D. and Pischke, J.-S.: Mostly Harmless Econometrics: An Empiricist's Companion, Princeton University Press, Princeton, USA, ISBN 978-0-691-12035-5, 2009. 
Austin, P. C.: Optimal caliper widths for propensity-score matching when estimating differences in means and differences in proportions in observational studies, Pharm. Stat., 10, 150–161, https://doi.org/10.1002/pst.433, 2011. 
Bertrand, M., Duflo, E., and Mullainathan, S.: How much should we trust differences-in-differences estimates?, Q. J. Econ., 119, 249–275, https://doi.org/10.1162/003355304772839588, 2004. 
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We studied how the Canterbury earthquakes changed household finances by linking national survey records with location and shaking data. Household income rose after the earthquakes, while total spending changed little overall. However, spending shifted toward insurance, transport, communication, housing, and repairs. Higher-income households adjusted across more areas, while relocated households faced higher housing costs. The findings show that rising income can coexist with uneven recovery.
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