\begin{table}[H]
\centering
\caption{Variable Definitions and Expected Signs}
\label{tab:variables}
\begin{threeparttable}
\begin{tabular}{llll}
\toprule
Variable & Type & Definition & Expected Sign \\
\midrule
\multicolumn{4}{l}{\textit{Dependent variable}} \\
$\ln P$ & Continuous & Natural log of listing 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 present & $+$ \\
Unit count & Count & Number of units (plex only) & $+$ \\
\midrule
\multicolumn{4}{l}{\textit{Locational variables}} \\
$\ln$(Dist.\ MTL) & Continuous & Log distance to Montreal CBD (km) & $-$ \\
Montreal & Binary & $=1$ if Montreal metro area & $+$ \\
Qu\'ebec City & Binary & $=1$ if Qu\'ebec City metro area & $+/-$ \\
Regions & Binary & $=1$ if other regions (reference) & --- \\
\midrule
\multicolumn{4}{l}{\textit{Amenity indicators}} \\
Highway & Binary & $=1$ if near highway & $+/-$ \\
Hospital & Binary & $=1$ if near hospital & $+/-$ \\
Park & Binary & $=1$ if near park & $+$ \\
School & Binary & $=1$ if near school & $+/-$ \\
Transit & Binary & $=1$ if near public transit & $+$ \\
Golf & Binary & $=1$ if near golf course & $+$ \\
\midrule
\multicolumn{4}{l}{\textit{Spatial variable (2SQR)}} \\
$\mathbf{W}\ln\mathbf{P}$ & Continuous & Spatially lagged log-price & $+$ \\
\bottomrule
\end{tabular}
\begin{tablenotes}
\small
\item \textit{Note:} Continuous variables are centered at sample means. Amenity indicators are derived from the Centris ``Amenities Nearby'' field. Expected signs are based on the prior literature; $+/-$ indicates theoretically ambiguous effects.
\end{tablenotes}
\end{threeparttable}
\end{table}