Scusami… 😀
Eccolo:
`
\begin{sidewaystable}[htbp]
\def\onepc{\rlap{$^{**}$}}\def\fivepc{\rlap{$^*$}}\def\tenpc{\rlap{$^\dagger$}}
\addtolength{\tabcolsep}{1em} \caption{Determinants of academic
performance: Panel estimates}
\medskip
\centering
\newcommand{\digitspace}{\hphantom{0}}
\begin{tabular}{l*{5}{>{$}r<{$}}}\toprule
Independent Variable & \multicolumn{1}{r}{OLS} &
\multicolumn{1}{r}{OLS} & \multicolumn{1}{r}{FE} &
\multicolumn{1}{r}{RE} &
\multicolumn{1}{r}{RE}\\
&\multicolumn{1}{r}{Pooled} & \multicolumn{1}{r}{Pooled} &
&\multicolumn{1}{r}{(1)} &\multicolumn{1}{r}{(2)}\\
& \multicolumn{1}{r}{(1)} & \multicolumn{1}{r}{(2)} &
& &\\
\midrule Hours of study
during lectures & &-0.34\digitspace\tenpc & & &-0.34\digitspace \\
Hours of study
after lectures & &0.21\digitspace\fivepc & & & 0.21\digitspace \\
Subject
evaluation & &0.093 & & & 0.093 \\
\bottomrule
\end{tabular}
\end{sidewaystable}
`
Ciao.
r.