Shift notes left when using \threeparttable

Question

I have a table and I would like to move the notes to the table right?

Is this possible?

Picture of Table:

Tex Code:

\begin{table}[htbp]
\thispagestyle{empty}
\vspace*{-1in}\caption{Don't ask}
\begin{threeparttable}
  \centering
    \hspace*{-1in}\begin{tabular}{p{4.145em}p{4.145em}lp{4.145em}llp{4.145em}ll}
    \hline
    \multicolumn{3}{p{12.435em}}{$h=1$} & \multicolumn{3}{p{12.435em}}{$h=12$} & \multicolumn{3}{p{12.435em}}{$h=60$} \bigstrut\\
    \hline
    Ind    & $\hat{\lambda}$ & \multicolumn{1}{p{4.145em}}{$R^2$} & Ind    & \multicolumn{1}{p{4.145em}}{\hat{\lambda}} & \multicolumn{1}{p{4.145em}}{$\R^2$} & Ind    & \multicolumn{1}{p{4.145em}}{\hat{\lambda}} & \multicolumn{1}{p{4.145em}}{$R^2$} \bigstrut\\
    \hline
    Ag  & \textbf{9.82*} & 0.43   & Ag  & 1.79   & 0.09   & Agric  & -0.23  & 0.03 \bigstrut\\
    Frr   & \multicolumn{1}{l}{3.09} & 0.1    & Frr   & -0.67  & 0.03   & Frr   & -0.29  & 0.05 \\
    Brr   & \multicolumn{1}{l}{5.97} & 0.26   & Brr   & 2.23   & 0.2    & Brr   & 0.39   & 0.06 \\
    \hline
    \end{tabular}%
 \begin{tablenotes}
\hspace*{-1in}\item{Notes: In this paper in this paper in this paper In this paper in this paper in this paper In this paper in this paper in this paper In this paper in this paper in this paper In this paper in this paper in this paper In this paper in this paper in this paper In this paper in this paper in this paper}
\end{tablenotes}
\end{threeparttable}
  \label{tab:addlabel}%
\end{table}%

Answer 1

As far as I can tell, you're abusing and misusing the threeparttable machinery. For one, you're not actually including the \caption directive -- one of the three formal parts of a threepartable -- in the threeparttable environment. Second, if your objective is to typeset a table that's considerably wider than the text block, you should go about this quite differently from what you show in your posting. Third, the primary purpose of the tablenotes environment is to typeset footnote text associated with \tnote directives; however, your code doesn't include any \tnotes.

I also don't understand why you employ fixed-width p-type columns instead of X-type columns (provided by the tabularx package).

The following screenshot shows two separate solutions that employ tabularx environments. The first uses a threeparttable environment (with \begin{tablenotes}[flushleft]); the second does not -- and thereby demonstrates that it's not necessary to deploy the threeparttable machinery in order to achieve your formatting objective.

\documentclass{article}
\usepackage{threeparttable,bigstrut}
\usepackage{tabularx}
\begin{document}
\begin{table}[htbp]
\begin{threeparttable}
\caption{Solution with \texttt{threeparttable}} 
\label{tab:1}
\begin{tabularx}{\textwidth}{@{} *{9}{X} @{}}
\hline
    \multicolumn{3}{@{}l}{$h=1$} & 
    \multicolumn{3}{l}{$h=12$} & 
    \multicolumn{3}{l}{$h=60$}\bigstrut\\
\hline
    Ind    & $\hat{\lambda}$ & $R^2$ & 
    Ind    & $\hat{\lambda}$ & $R^2$ & 
    Ind    & $\hat{\lambda}$ & $R^2$\bigstrut\\
\hline
    Ag  & \textbf{9.82*} & 0.43   & Ag  & 1.79   & 0.09   & Agric  & -0.23  & 0.03\bigstrut\\
    Frr   & 3.09 & 0.1    & Frr   & -0.67  & 0.03   & Frr   & -0.29  & 0.05 \\
    Brr   & 5.97 & 0.26   & Brr   & 2.23   & 0.2    & Brr   & 0.39   & 0.06 \\
\hline
\end{tabularx}
\begin{tablenotes}[flushleft]
\item[]Notes: In this paper in this paper in this paper In this paper in this paper in this paper In this paper in this paper in this paper In this paper in this paper in this paper In this paper in this paper in this paper In this paper in this paper in this paper In this paper in this paper in this paper.
\end{tablenotes}
\end{threeparttable}
\end{table}

\begin{table}[htbp]
\caption{Solution without \texttt{threeparttable}}\label{tab:2}

\smallskip
\begin{tabularx}{\textwidth}{@{} *{9}{X} @{}}
\hline
    \multicolumn{3}{@{}l}{$h=1$} &
    \multicolumn{3}{l}{$h=12$} &
    \multicolumn{3}{l}{$h=60$}\bigstrut\\
\hline
    Ind    & $\hat{\lambda}$ & $R^2$ &
    Ind    & $\hat{\lambda}$ & $R^2$ &
    Ind    & $\hat{\lambda}$ & $R^2$\bigstrut\\
\hline
    Ag  & \textbf{9.82*} & 0.43   & Ag  & 1.79   & 0.09   & Agric  & -0.23  & 0.03\bigstrut\\
    Frr   & 3.09 & 0.1    & Frr   & -0.67  & 0.03   & Frr   & -0.29  & 0.05 \\
    Brr   & 5.97 & 0.26   & Brr   & 2.23   & 0.2    & Brr   & 0.39   & 0.06 \\
\hline
\end{tabularx}

\smallskip
Notes: In this paper in this paper in this paper In this paper in this paper in this paper In this paper in this paper in this paper In this paper in this paper in this paper In this paper in this paper in this paper In this paper in this paper in this paper In this paper in this paper in this paper.
\end{table}
\end{document}