1\begin{table}[htbp]\centering\footnotesize2\caption{H1 --- Region $\times$ category dependence against the store-reshuffle null}\label{tab:h1}3\begin{tabular}{lrrrrrrrr}\toprule4Sample / variant & Weights & Stores & Regions & Cramér's $V$ & Null mean & Null p95 & $p$ (perm.) & Cells RAA$>1$/$<1$ \\\midrule5S\_R & M & 1\,331 & 17 & 0.105 & 0.075 & 0.081 & 0.0005 & 13/62 \\6S\_R & L & 1\,331 & 17 & 0.227 & 0.202 & 0.228 & 0.0585 & 6/71 \\7S\_R & T & 1\,331 & 17 & 0.159 & 0.159 & 0.183 & 0.4923 & 9/61 \\8S\_R0 & M & 1\,214 & 16 & 0.114 & 0.079 & 0.085 & 0.0005 & 12/59 \\9S\_R0 & L & 1\,214 & 16 & 0.253 & 0.217 & 0.247 & 0.0240 & 7/61 \\10S\_R0 & T & 1\,214 & 16 & 0.176 & 0.179 & 0.205 & 0.5347 & 10/66 \\11S\_R & stores & 1\,331 & 17 & 0.047 & 0.035 & 0.037 & 0.0005 & 14/30 \\12S\_R0\_dbfirst\_regions & M & 1\,214 & 16 & 0.114 & 0.079 & & 0.001 & \\13cert\_assoc\_sources\_only & M & 1\,068 & 17 & 0.109 & 0.083 & & 0.001 & \\14excl\_Montreal & M & 1\,094 & 16 & 0.097 & 0.084 & & 0.005 & \\15excl\_top1pct\_stores & M & 1\,318 & 17 & 0.106 & 0.075 & & 0.001 & \\16macro8\_categories & M & 1\,331 & 17 & 0.083 & 0.069 & & 0.006 & \\17drop\_autre & M & 1\,296 & 17 & 0.108 & 0.076 & & 0.001 & \\18excl\_resellers\_collectives & M & 1\,306 & 17 & 0.106 & 0.076 & & 0.001 & \\19excl\_region\_conflicts & M & 1\,301 & 17 & 0.107 & 0.076 & & 0.001 & \\20\bottomrule\end{tabular}21\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}22\end{table}23