[Tex/LaTex] How to organise this matrix in beamer

Question

I have three vectors that should be in same line in this frame. I can not do it. Could you help me.
The MWE is

\documentclass{beamer}

\begin{document}

%-----------------------------------------------------------------------------------------
\begin{frame}{Identification}
\begin{itemize}
\item  Identification scheme: \citet{Christiano.etal2005}
\[
    Y_{t}=\left[Y_{1t}, MP_{t} , Y_{2t}\right]^{\prime}
\]

\[Y_{1t}=
\left[\begin{array}{c}
GDP \\ 
cmp  \\ 
P%
\end{array}\right]
\]; \[MP_{t}=
\left[\begin{array}{c}
i \\ 
M2%
\end{array}\right]
\]; 
\[Y_{2t}=
\left[\begin{array}{c}
RER \\ 
SP   
\end{array}\right]
\]
\item where $Y_{1t}$ represents a subset of variables that...;
\item $MP_{t}$ is the monetary..;
\item $Y_{2t}$ represents a subset...
\end{itemize}

\end{frame}

\end{document}

I want the vector Y1, MP and Y2 in same line, and not as it appear in this image.

Answer 1

Maybe this?? Rather than starting a new equation for each vector, I just separate them with a semicolon and a \quad, within a line of a single equation.

\documentclass{beamer}
\def\citet#1{#1}
\begin{document}

%-----------------------------------------------------------------------------------------
\begin{frame}{Identification}
\begin{itemize}
\item  Identification scheme: \citet{Christiano.etal2005}
\[
    Y_{t}=\left[Y_{1t}, MP_{t} , Y_{2t}\right]^{\prime}
\]

\[Y_{1t}=
\left[\begin{array}{c}
GDP \\ 
cmp  \\ 
P%
\end{array}\right]
~;\quad MP_{t}=
\left[\begin{array}{c}
i \\ 
M2%
\end{array}\right]
~;\quad
Y_{2t}=
\left[\begin{array}{c}
RER \\ 
SP   
\end{array}\right]
\]
\item where $Y_{1t}$ represents a subset of variables that...;
\item $MP_{t}$ is the monetary..;
\item $Y_{2t}$ represents a subset...
\end{itemize}

\end{frame}

\end{document}