\documentclass{article}
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\usepackage{epstopdf}
\title{Empirical Project Example}
\date{\today}
\author{Matthew Naven}
\begin{document}
\maketitle
Here I talk about the summary statistics presented in table 1.
\begin{centering}
\input{ex1.tex}
\end{centering}
The summary statistics in table 2 come from the group that decided to use the tariff. Notice that they makes less calls on average.
I have run some regressions here. If this wasn't an example, I would interpret the results and describe why they are important.
\begin{centering}
\input{ex2.tex}
\end{centering}
Here are some more regressions. These regressions use bill as the dependent variable, instead of the number of minutes used as in the previous regressions.
\begin{centering}
\input{ex3.tex}
\end{centering}
\end{document}