\begin{table}[htbp]\centering
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\caption{Subgroup Effects: Sociocultural Variables \label{tab:socio}}
\begin{tabular}{l*{2}{c}}
\hline\hline
                    &\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}\\
                    &\multicolumn{1}{c}{Base}&\multicolumn{1}{c}{Full}\\
                    &        b/se         &        b/se         \\
\hline
Treatment $\times$ Exports $\times$ High Sociotropic&      19.505         &      14.975         \\
                    &    (10.855)         &    (11.639)         \\
Treatment $\times$ Imports $\times$ High Sociotropic&      24.849\sym{*}  &      26.324\sym{*}  \\
                    &    (10.039)         &    (11.257)         \\
Treatment $\times$ Non-traded $\times$ High Sociotropic&      28.731\sym{**} &      27.611\sym{*}  \\
                    &     (9.884)         &     (9.864)         \\
\hline
N                   &        2382         &        2273         \\
r2                  &       0.076         &       0.094         \\
\hline\hline
\multicolumn{3}{l}{\footnotesize \sym{*} \(p<0.05\), \sym{**} \(p<0.01\), \sym{***} \(p<0.001\)}\\
\end{tabular}
\end{table}
