\begin{table}[htbp]
\centering
\begin{threeparttable}
\caption{Arrow--Debreu Market Completeness Tests}
\label{tab:completeness}
\begin{tabular}{l S}
\toprule
Statistic & {Value} \\
\midrule
    Mean state price sum & 1.0205 \\
    Std of state price sum & 0.0527 \\
    Mean deviation from unity & 0.0248 \\
    Max absolute deviation & 0.5700 \\
    All state prices positive & {Yes} \\
    Implied discount factor & 1.0205 \\
    Number of observations & 146 \\
\bottomrule
\end{tabular}
\begin{tablenotes}
\small
\item \textit{Notes:} This table reports results from testing Arrow--Debreu market completeness
conditions using the Fed rate decision markets on Polymarket. Under complete markets,
the sum of state prices equals $1/(1+r_f)$. Mean deviation measures the average
departure from this theoretical prediction.
\end{tablenotes}
\end{threeparttable}
\end{table}