Tuesday, May 23, 2023

Sustainability transitions of contaminated sites: A global meta-analysis on economic effects of remediation behaviour

The worldwide diversity of contaminated sites, coupled with a scarcity of available land presents a challenge for urban spatial planning and, has led to an increasing political significance for brownfield conservation and reuse to achieve land resource sustainability. In this study, economic or the so-called ‘rebound effects’ of land regeneration are studied via a global meta-analysis on value fluctuation of surrounding property. To this end, a total of 91 observations from 28 HPM (hedonic pricing model) studies were synthesized to conduct a meta-analysis following a conditional random effects procedure. The empirical results indicate that, in line with expectations, the conservation and recycling of land resource indeed generate significant rebound in the implicit price of residential houses, especially for those located within 2 km of contaminated sites. Before land remediation and reuse, dwellings closest in distance to contaminated sites experience the greatest value loss. On average, the depreciation in property values within the first 1 km distance from a contaminated site is about 8.18%, significantly at the 1% level, while the corresponding adverse impact from 1 to 2 km distance is a 4.8% price premium significantly at the 5% level. The significance of the stigma or rebound effects depends on 12 attributes, in which, house age, location, floor area ratio (FAR), and central business district (CBD) variables have the largest impact of −37.38% to 37.5%. From a practical perspective, the findings of this meta-analysis: (1) help refine contributing parameters in HPM studies to evaluate environmental economics; and (2) provide meaningful decision-making support for cost-effective remediation and benefit maximization.
by Xiaonuo Li, Shiyi Yi, Andrew B. Cundy and Weiping Chen
Land Degradation & Development via Wiley Online https://onlinelibrary.wiley.com/journal/1099145x
Volume 33, Issue11; 15 July 2022; Pages 1775-1786

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