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1\begin{table}[htbp]2\centering3\begin{threeparttable}4\caption{Arrow--Debreu Market Completeness Tests}5\label{tab:completeness}6\begin{tabular}{l S}7\toprule8Statistic & {Value} \\9\midrule10 Mean state price sum & 1.0205 \\11 Std of state price sum & 0.0527 \\12 Mean deviation from unity & 0.0248 \\13 Max absolute deviation & 0.5700 \\14 All state prices positive & {Yes} \\15 Implied discount factor & 1.0205 \\16 Number of observations & 146 \\17\bottomrule18\end{tabular}19\begin{tablenotes}20\small21\item \textit{Notes:} This table reports results from testing Arrow--Debreu market completeness22conditions using the Fed rate decision markets on Polymarket. Under complete markets,23the sum of state prices equals $1/(1+r_f)$. Mean deviation measures the average24departure from this theoretical prediction.25\end{tablenotes}26\end{threeparttable}27\end{table}