\include{zinput} \begin{document}\section{{\tt mid}: Militarized Interstate Disputes}\label{ss:mid}
\keyword{datasets}{mid}
\begin{Description}\relax
A small sample from the militarized interstate disputes database,
available at \url{http://pss.la.psu.edu/MID_DATA.HTM}.
\end{Description}
\begin{Usage}
\begin{verbatim}data(mid)\end{verbatim}
\end{Usage}
\begin{Format}\relax
A table containing 6 variables ("conflict", "major", "contig", 
"power", "maxdem", "mindem", and "years") and 3,126 observations.  For
full variable descriptions, please see King and Zeng, 2001.
\end{Format}
\begin{Source}\relax
Militarized Interstate Disputes database
\end{Source}
\begin{References}\relax
King, Gary, and Lanche Zeng (2001).  ``Explaining Rare Events in
International Relations,'' \emph{International Organization}, vol. 55,
no. 3, pp. 693-715.  

Jones, Daniel M., Stuart A. Bremer and David Singer (1996).  ``Militarized
Interstate Disputes, 1816-1992: Rationale, Coding Rules, and Empirical
Patterns,'' \emph{Conflict Management and Peace Science}, vol. 15,
no. 2, pp. 163-213.
\end{References}

\end{document}
