1\begin{table}[htbp]\centering2\begin{threeparttable}3\caption{Rolling-origin forecasts of next-week log posted price (storefront listings)}\label{tab:fprice}4\small5\begin{tabular}{lrrrr}6\toprule7Model & Origins & N & MAE & RMSE \\8\midrule9banner\_cat\_drift & 4 & 215\,264 & 0.0248 & 0.1084 \\10lightgbm & 4 & 215\,264 & 0.0301 & 0.1000 \\11mean\_reversion\_ref & 4 & 215\,264 & 0.0284 & 0.1025 \\12naive\_last & 4 & 215\,264 & 0.0226 & 0.1083 \\13ridge & 4 & 215\,264 & 0.0299 & 0.0992 \\14\bottomrule15\end{tabular}16\begin{tablenotes}[flushleft]\footnotesize17\item Strict time-based holdouts: train on weeks $\le t-1$, test on week $t$, origins $t = 6,\dots,9$; features are lags only. Lower is better.18\end{tablenotes}19\end{threeparttable}20\end{table}21