1\begin{table}[htbp]\centering\footnotesize2\caption{H1 --- Region $\times$ category dependence against the store-reshuffle null}\label{tab:h1}3\begin{adjustbox}{max width=\textwidth}4\begin{tabular}{lrrrrrrrr}\toprule5Sample / variant & Weights & Stores & Regions & Cramér's $V$ & Null mean & Null p95 & $p$ (perm.) & Cells RAA$>1$/$<1$ \\\midrule6S\_R & M & 1\,331 & 17 & 0.111 & 0.086 & 0.093 & 0.0005 & 12/64 \\7S\_R & L & 1\,331 & 17 & 0.320 & 0.299 & 0.344 & 0.2124 & 5/64 \\8S\_R & T & 1\,331 & 17 & 0.191 & 0.189 & 0.215 & 0.4453 & 7/72 \\9S\_R0 & M & 1\,214 & 16 & 0.121 & 0.090 & 0.096 & 0.0005 & 9/72 \\10S\_R0 & L & 1\,214 & 16 & 0.344 & 0.278 & 0.318 & 0.0025 & 9/70 \\11S\_R0 & T & 1\,214 & 16 & 0.219 & 0.201 & 0.229 & 0.1399 & 10/74 \\12S\_R & stores & 1\,331 & 17 & 0.056 & 0.045 & 0.048 & 0.0005 & 15/26 \\13S\_R0\_dbfirst\_regions & M & 1\,214 & 16 & 0.121 & 0.090 & & 0.001 & \\14cert\_assoc\_sources\_only & M & 1\,068 & 17 & 0.117 & 0.095 & & 0.001 & \\15excl\_Montreal & M & 1\,094 & 16 & 0.105 & 0.094 & & 0.009 & \\16excl\_top1pct\_stores & M & 1\,318 & 17 & 0.112 & 0.086 & & 0.001 & \\17macro8\_categories & M & 1\,331 & 17 & 0.112 & 0.081 & & 0.001 & \\18drop\_autre & M & 1\,306 & 17 & 0.109 & 0.084 & & 0.001 & \\19excl\_resellers\_collectives & M & 1\,306 & 17 & 0.111 & 0.086 & & 0.001 & \\20excl\_region\_conflicts & M & 1\,301 & 17 & 0.114 & 0.087 & & 0.001 & \\21\bottomrule\end{tabular}22\end{adjustbox}23\begin{minipage}{0.95\textwidth}\vspace{2pt}\footnotesize\textit{Notes:} $V$ = Cramér's $V$ of the region $\times$ category table of listing weights (L = one per listing; M = merchant-equal, each store sums to one; T = listings after dropping the 1\% largest stores; `stores' = count of stores present in the category). Null = 2\,000 permutations of region labels across stores (each region keeps its number of stores, each store keeps its catalogue); $p$ is one-sided. Last column: number of the $R\times C$ cells whose store-bootstrap 95\% interval for RAA lies entirely above / below 1. Variants from the preregistered robustness list (1\,000 permutations).\end{minipage}24\end{table}25