\begin{table}[!h]
\begin{center}
\begin{threeparttable}
\begin{scriptsize}
\caption{Abstention and the radical right-wing vote: Sensitivity to lat-lon polynomial\label{EEREV-D-21-00004_TableA1}}
\begin{tabular*}{\columnwidth}{@{\extracolsep{\stretch{1}}}l*{8}{c}@{}}
\hline
\hline
&\multicolumn{1}{c}{(1)} &\multicolumn{1}{c}{(2)}  &\multicolumn{1}{c}{(3)} &\multicolumn{1}{c}{(4)} &\multicolumn{1}{c}{(5)}  &\multicolumn{1}{c}{(6)}  &\multicolumn{1}{c}{(7)} &\multicolumn{1}{c}{(8)}\\
       &\multicolumn{3}{c}{Earlier elections} &\multicolumn{5}{c}{Later elections}\\
\cmidrule(lr){2-4} \cmidrule(lr){5-9}
\multicolumn{1}{l}{\textit{Election year}}&\multicolumn{1}{c}{1965} &\multicolumn{1}{c}{1969} &\multicolumn{1}{c}{1974} &\multicolumn{1}{c}{1995}  &\multicolumn{1}{c}{2002} &\multicolumn{1}{c}{2007} &\multicolumn{1}{c}{2012} &\multicolumn{1}{c}{2017}\\
\cmidrule(lr){2-9}
& \multicolumn{8}{c}{Panel A: 2SLS Estimates. Dep. Variable: Radical right-wing vote (\% of registered)}\\
\hline
\\ Conscription proxy (\%)&     --0.054   &               &       0.010   &       0.952** &       0.601** &     --0.112   &     --0.001   &     --0.014   \\
                    &     (0.119)   &               &     (0.018)   &     (0.376)   &     (0.285)   &     (0.183)   &     (0.298)   &     (0.312)   \\
\\ Lat-lon polynomial degree & 1st &  & 1st & 1st & 1st & 1st & 1st & 1st \\ 
First-stage $ F $-statistic&       28.00   &               &       31.88   &       32.79   &       29.83   &       47.72   &       38.11   &       35.61   \\
\\

\hline
\\ Conscription proxy (\%)&     --0.068   &               &       0.012   &       1.085***&       0.726** &       0.045   &       0.203   &       0.081   \\
                    &     (0.125)   &               &     (0.016)   &     (0.380)   &     (0.318)   &     (0.191)   &     (0.316)   &     (0.390)   \\
\\ Lat-lon polynomial degree & 3rd &  & 3rd & 3rd & 3rd & 3rd & 3rd & 3rd \\ 
First-stage $ F $-statistic&       29.16   &               &       28.09   &       34.19   &       27.44   &       39.77   &       22.94   &       24.56   \\
\\
%\hline
\cmidrule(lr){2-9}
& \multicolumn{8}{c}{Panel B: 2SLS Estimates. Dep. Variable: Abstention (\% of registered)}\\
\hline
\\ Conscription proxy (\%)&       1.117***&       1.488** &       0.658** &     --0.184   &     --0.855***&       0.313** &       0.073   &       0.252   \\
                    &     (0.385)   &     (0.564)   &     (0.310)   &     (0.200)   &     (0.294)   &     (0.145)   &     (0.228)   &     (0.206)   \\
\\ Lat-lon polynomial degree & 1st & 1st & 1st & 1st & 1st & 1st & 1st & 1st \\ 
First-stage $ F $-statistic&       28.00   &       31.17   &       31.88   &       32.79   &       29.83   &       47.72   &       38.11   &       35.61   \\
\\

\hline
\\ Conscription proxy (\%)&       1.020***&       1.466** &       0.796** &     --0.147   &     --0.779** &       0.410** &       0.169   &       0.346   \\
                    &     (0.356)   &     (0.581)   &     (0.330)   &     (0.226)   &     (0.298)   &     (0.185)   &     (0.285)   &     (0.245)   \\
\\ Lat-lon polynomial degree & 3rd & 3rd & 3rd & 3rd & 3rd & 3rd & 3rd & 3rd \\ 
First-stage $ F $-statistic&       29.16   &       31.04   &       28.09   &       34.19   &       27.44   &       39.77   &       22.94   &       24.56   \\
\\


Border segment FE   &         Yes   &         Yes   &         Yes   &         Yes   &         Yes   &         Yes   &         Yes   &         Yes   \\
Historical dialect FE &         Yes   &         Yes   &         Yes   &         Yes   &         Yes   &         Yes   &         Yes   &         Yes   \\
Full set of controls &         Yes   &         Yes   &         Yes   &         Yes   &         Yes   &         Yes   &         Yes   &         Yes   \\
\hline
Observations        &         462   &         462   &         462   &         462   &         462   &         462   &         462   &         462   \\
Clusters            &          32   &          32   &          32   &          32   &          32   &          32   &          32   &          32   \\
\hline
\hline
\end{tabular*}
\end{scriptsize}
\begin{tablenotes}[normal,flushleft]
\begin{scriptsize}
\item \emph{Notes}:
Sensitivity of the results of Table \ref{EEREV-D-21-00004_Table5} to different latitude-longitude polynomials. 
The unit of observation is a municipality. 
Standard errors clustered at the canton level in parentheses. 
Panel A: 2SLS estimates with radical right-wing vote as the outcome and a first order ($ x+y $) and third order ($ x+y+x^2+y^2+xy+x^3+y^3+x^2y+xy^2 $) polynomial in latitude-longitude; 
Panel B: 2SLS estimates with abstention as the outcome. 
Each column presents the estimation for a different election. 
First-stage F-statistic is the Kleibergen-Paap rk Wald F-statistic of the first-stage estimation. 
* significant at 10\%; ** at 5\%; *** at 1\%. 
\end{scriptsize}
\end{tablenotes}
\end{threeparttable}
\end{center}
\end{table}
