答案1
我假设版本 2-4 中的一个就是您想要的。
\documentclass{article}
\usepackage{amsmath}
\usepackage{graphics}
\begin{document}
\begin{equation}
D_{it}=\left\{
\begin{array}{ll}
1& \text{if bank...}\\
2& \text{if bank...}\\
0&\text{otherwise}
\end{array}
\right.
\end{equation}
\begin{equation}
D_{it}=\left\}
\begin{array}{ll}
1& \text{if bank...}\\
2& \text{if bank...}\\
0&\text{otherwise}
\end{array}
\right.
\end{equation}
\begin{equation}
D_{it}=\left.
\begin{array}{ll}
1& \text{if bank...}\\
2& \text{if bank...}\\
0&\text{otherwise}
\end{array}
\right\{
\end{equation}
\begin{equation}
D_{it}=\left.
\begin{array}{ll}
1& \text{if bank...}\\
2& \text{if bank...}\\
0&\text{otherwise}
\end{array}
\right\}
\end{equation}
\end{document}