1% ============================================================================2% Figure: Main Result3% ============================================================================4\begin{figure}[htbp]5 \centering6 % --- Replace placeholder with actual figure file ---7 % \includegraphics[width=0.85\textwidth]{figures/main_result.pdf}8 %9 % Placeholder box (remove when replacing with actual figure)10 \fbox{\parbox{0.85\textwidth}{\centering\vspace{4cm}11 \textit{[Insert figure here: figures/main\_result.pdf]}12 \vspace{4cm}}}13 %14 \caption{Main Result --- Effect of $X$ on $Y$ Over Time}15 \label{fig:main_result}16 \begin{minipage}{0.85\textwidth}17 \vspace{0.3cm}18 \footnotesize\textit{Notes:} This figure plots \ldots{} over the sample period January~1990 to December~2023. The solid line represents \ldots{} The shaded area indicates the 95\% confidence interval. The dashed vertical line marks \ldots{}19 \end{minipage}20\end{figure}21