\begin{longtable}{p{2.8cm}p{3.0cm}p{1.9cm}p{1.9cm}p{2.3cm}p{2.9cm}}
\caption{Competing reviews and meta-analyses of hedonic housing studies (verified; counts as stated in the abstracts or full texts that could be read; blank when not stated)}\label{tab:competing}\\
\toprule
Review & scope & studies & estimates & coverage & method \\
\midrule
\endfirsthead
\multicolumn{6}{l}{\textit{(continued)}}\\
\toprule
Review & scope & studies & estimates & coverage & method \\
\midrule
\endhead
\bottomrule
\endfoot
Smith (1995) & air quality (particulates) & -- & -- & United States & OLS and minimum absolute devia \\
Boyle (2001) & environmental externalities (air, water, & -- & -- & nan & narrative survey \\
Bowen (2001) & methodological; spatial dependence in he & -- & -- & US (Cuyahoga County applicatio & review plus application \\
Malpezzi (2003) & general; theory, specification, function & -- & -- & global (mostly US/UK examples) & selective narrative review \\
Nelson (2004) & airport noise & 20 & 33 (23 airports) & Canada and United States & meta-regression \\
Sirmans (2005) & general; composition of hedonic models,  & -- & -- & nan & descriptive tabulation of rece \\
McConnell (2005) & open space (hedonic and stated preferenc & 60+ & -- & mostly US & narrative review \\
Sirmans (2006) & general; 9 structural characteristics of & -- & -- & nan & meta-regression (Stanley-Jarre \\
Simons (2006) & environmental contamination and positive & 75 & about 290 & United States & OLS meta-regression \\
Debrezion (2007) & railway station proximity (residential a & -- & 102 estimation results & North America and Europe & WLS meta-regression with dummi \\
Nelson (2008) & aircraft and road traffic noise & -- & -- & nan & review of hedonic noise studie \\
Daniel (2009) & flood risk & -- & -- & predominantly United States & meta-analysis using implicit p \\
Kuminoff (2010) & methodological (Monte Carlo); not a lite & -- & -- & nan & simulation \\
Herath (2010) & general; history, estimation, classifica & 471 & -- & global (ISI Web of Knowledge) & bibliometric classification of \\
Waltert (2010) & landscape amenities (migration, regional & 71 & -- & nan & systematic vote-count review \\
Sirmans (2010) & time-on-the-market coefficient in hedoni & -- & -- & nan & meta-regression \\
Jackson (2010) & electric transmission lines & -- & -- & nan & narrative review \\
Braden (2011) & waste sites (hazardous, non-hazardous, n & 46 & 129 & North America & meta-regression, robust across \\
Nguyen-Hoang (2011) & school quality capitalization & -- & -- & nan & narrative review \\
Brander (2011) & urban open space (CV and HP) & -- & -- & nan & multilevel meta-regression \\
Hill (2013) & methodological; hedonic house price inde & -- & -- & nan & survey and taxonomy \\
Wadud (2013) & airport noise; benefit transfer to Asia & -- & -- & nan & meta-regression \\
Mohammad (2013) & rail projects; land and property values & 23 & 102 & nan & meta-regression; publication b \\
Perino (2014) & urban greenspace, UK & -- & -- & United Kingdom & meta-analysis + GIS benefit tr \\
Siriwardena (2016) & tree canopy cover & -- & -- & United States & meta-analysis merged with spat \\
Higgins (2016) & rapid transit land value uplift & 60 & 130+ analyses & North America & critical narrative review \\
Gluszak (2017) & airport noise incl. non-North-American a & -- & -- & Europe and North America & meta-analysis (conference pape \\
Beltran (2018) & flood risk (inland and coastal) & 37 & 364 & nan & meta-analysis and meta-regress \\
Nicholls (2018) & surface water quality & 43 (48 publications) & -- & nan & narrative review \\
Cespedes-Lopez (2019) & energy performance certificates & 66 documents & 173 sales registers & global; North America, Asia, E & systematic review, meta-analys \\
Nicholls (2019) & environmental disturbances (pests, invas & -- & -- & nan & narrative review \\
Wang (2019) & mass appraisal models (AI, GIS, mixed) & 104 & -- & nan & systematic literature review \\
Crompton (2019) & greenways and trails & 20 hedonic analyses (+ & -- & United States & narrative review \\
Valier (2020) & AVM machine learning vs regression accur & -- & -- & nan & systematic review of head-to-h \\
Zhang (2020) & bus rapid transit; land value uplift & 23 & -- & nan & random-effects meta-regression \\
Bishop (2020) & methodological guidance; environmental a & -- & -- & nan & best-practice review \\
Jayantha (2020) & general; bibliometric & 269 & -- & global (Scopus) & bibliometric (CiteSpace) \\
Turnbull (2021) & school quality capitalization & -- & -- & United States & meta-analysis / meta-regressio \\
Ja'afar (2021) & ML for property price prediction and val & -- & -- & nan & systematic literature review \\
Guignet (2022) & water quality (clarity) and housing valu & 36 & 656 & United States & meta-regression with within-ma \\
Parsons (2022) & wind power projects & 18 core studies & -- & Europe (10), North America (8) & structured review with average \\
Geerts (2023) & house price prediction methods and data  & 93 & -- & nan & systematic literature review w \\
Khoshnoud (2023) & general; extension of Sirmans et al. 200 & 252 & -- & global authorship and data, mo & descriptive review \\
Tekouabou (2024) & ML for urban real estate prediction & 70 & -- & USA, China, India, Japan, Hong & systematic survey (Scopus) \\
Naz (2024) & ML, DL and hybrid price prediction & -- & -- & nan & systematic literature review \\
Heberling (2024) & surface water quality & 29 & 290 & nan & probit meta-regression \\
Jayalath (2025) & water quality (Secchi depth); Canada ben & 29 & 600+ & nan & meta-regression + spatial bene \\
Siriwardena (2025) & urban tree cover (internal meta-analysis & -- & -- & United States & internal meta-analysis \\
Macchiaroli (2025) & crime, crime prevention, CPTED & 50 & -- & nan & systematic literature review a \\
Moreno-Foronda (2025) & ML vs hedonic regression comparisons & 23 & -- & Asia 43\% (10 studies); others & systematic review (PRISMA) \\
\end{longtable}