Quick Clay Landslides & Housing Prices: The effects of quick clay landslide risk and landslides occurrences on housing prices in the event location, closely located, and remotely located municipalities
Master thesis
Submitted version
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https://hdl.handle.net/11250/3030223Utgivelsesdato
2022Metadata
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Sammendrag
In this thesis, we employ a difference-in-differences approach to estimate the price effect of
quick clay landslide risk on dwellings and the price effect of quick clay landslide occurrences
on both dwellings at risk and not at risk of quick clay landslides. The price effects are
estimated by including a dummy variable for being at risk of quick clay landslides and
controlling for housing characteristics, unobserved time effects, and location effects. The
estimations are based upon transactional data for dwellings within municipals that are either
the place of the event, nearby municipalities, or remote municipalities. This thesis has
included three such events: the quick clay landslide in Alta, 2020; Lyngen, 2010; and
Gjerdrum, 2020. There are indications and evidence of price discounts for dwellings at risk.
However, we also find contradictive results, giving us reasons for questioning the validity of
the results. For the prices of dwellings after a quick clay landslide, we find similar results.
However, the findings for the Gjerdrum case clearly indicates an additional negative price
effect on dwellings at risk after landslide events compared to dwellings not at risk, which may
be due to a salience effect of such events.