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 & 0.105 & 0.075 & 0.081 & 0.0005 & 13/62 \\7S\_R & L & 1\,331 & 17 & 0.227 & 0.202 & 0.226 & 0.0455 & 5/73 \\8S\_R & T & 1\,331 & 17 & 0.159 & 0.159 & 0.184 & 0.4878 & 10/64 \\9S\_R0 & M & 1\,214 & 17 & 0.113 & 0.079 & 0.085 & 0.0005 & 14/63 \\10S\_R0 & L & 1\,214 & 17 & 0.240 & 0.213 & 0.242 & 0.0635 & 6/59 \\11S\_R0 & T & 1\,214 & 17 & 0.172 & 0.175 & 0.202 & 0.5432 & 10/66 \\12S\_Rpip & M & 1\,331 & 16 & 0.107 & 0.075 & 0.081 & 0.0005 & 10/61 \\13S\_Rpip & L & 1\,331 & 16 & 0.239 & 0.205 & 0.232 & 0.0185 & 7/68 \\14S\_Rpip & T & 1\,331 & 16 & 0.163 & 0.162 & 0.186 & 0.4368 & 10/64 \\15S\_R & stores & 1\,331 & 17 & 0.047 & 0.035 & 0.037 & 0.0005 & 15/34 \\16S\_R0\_platform\_label\_only & M & 1\,214 & 17 & 0.113 & 0.079 & & 0.001 & \\17pip\_first\_regions & M & 1\,331 & 16 & 0.107 & 0.075 & & 0.001 & \\18province\_wide\_sources\_only & M & 1\,012 & 17 & 0.116 & 0.085 & & 0.001 & \\19cert\_assoc\_sources\_only & M & 1\,068 & 17 & 0.109 & 0.083 & & 0.001 & \\20excl\_Montreal & M & 1\,094 & 16 & 0.097 & 0.084 & & 0.007 & \\21excl\_top1pct\_stores & M & 1\,318 & 17 & 0.106 & 0.075 & & 0.001 & \\22macro8\_categories & M & 1\,331 & 17 & 0.083 & 0.069 & & 0.004 & \\23drop\_autre & M & 1\,296 & 17 & 0.108 & 0.076 & & 0.001 & \\24excl\_resellers\_collectives & M & 1\,306 & 17 & 0.106 & 0.076 & & 0.001 & \\25excl\_region\_conflicts & M & 1\,207 & 16 & 0.109 & 0.078 & & 0.001 & \\26excl\_straddling\_fsa\_stores & M & 924 & 17 & 0.110 & 0.087 & & 0.001 & \\27\bottomrule\end{tabular}28\end{adjustbox}29\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}30\end{table}31