\begin{table}[H]
\centering
\caption{Variable definitions}
\label{tab:variables}
\begin{threeparttable}
\small
\begin{tabular}{llp{6.2cm}c}
\toprule
Variable & Type & Definition & Prior sign \\
\midrule
\multicolumn{4}{l}{\textit{Dependent variable}} \\
$\ln P$ & Continuous & Natural log of asking price (CAD) & --- \\
\midrule
\multicolumn{4}{l}{\textit{Structural characteristics}} \\
Bedrooms & Count & Number of bedrooms & $+$ \\
Bathrooms & Count & Full baths $+$ 0.5 $\times$ half baths & $+$ \\
Stories & Count & Number of stories & $+/-$ \\
$\ln$(Floor area) & Continuous & Log of interior area (sq.ft.) & $+$ \\
$\ln$(Land area) & Continuous & Log of lot size (sq.ft.) & $+$ \\
Parking & Count & Number of parking spaces & $+$ \\
Garage & Binary & $=1$ if ``Garage'' in parking-type field & $+$ \\
Unit count & Count & Number of units (plex only) & $+$ \\
\midrule
\multicolumn{4}{l}{\textit{Locational variables}} \\
$\ln$(Dist.\ MTL) & Continuous & Log straight-line distance to downtown Montreal (km, floored at 0.5) & $-$ \\
Montreal & Binary & $=1$ if Montreal metro area & $+$ \\
Qu\'ebec City & Binary & $=1$ if Qu\'ebec City metro area & $+/-$ \\
Regions & Binary & $=1$ if outside the three metropolitan areas & $-$ \\
Gatineau & Binary & omitted reference category & --- \\
\midrule
\multicolumn{4}{l}{\textit{Amenity indicators}} \\
Highway & Binary & $=1$ if ``Highway'' in amenities-nearby field & $+/-$ \\
Hospital & Binary & $=1$ if ``Hospital'' in amenities-nearby field & $+/-$ \\
Park & Binary & $=1$ if ``Park'' in amenities-nearby field & $+$ \\
School & Binary & $=1$ if ``School'' in amenities-nearby field & $+/-$ \\
Transit & Binary & $=1$ if ``Transit'' in amenities-nearby field & $+$ \\
Golf & Binary & $=1$ if ``Golf'' in amenities-nearby field & $+$ \\
\midrule
\multicolumn{4}{l}{\textit{Spatial variable (2SQR)}} \\
$\mathbf{W}\ln\mathbf{P}$ & Continuous & Inverse-distance weighted mean of the ten nearest log asking prices & $+$ \\
\bottomrule
\end{tabular}
\begin{tablenotes}
\small
\item \textit{Notes:} Continuous variables are centred at segment means. Amenity indicators are keyword matches in the broker-completed Centris ``amenities nearby'' field and carry no distance or quality information. Prior signs summarise the literature of Section~\ref{sec:literature}; $+/-$ denotes an ambiguous prior.
\end{tablenotes}
\end{threeparttable}
\end{table}