4. Imagine a game in which the payoffs are randomly given either by the Prisoner's
Dilemma game on the left (with probability $\phi > 0$), or the anticoordination game on
the right (probability $1 - \phi > 0$).
\begin{tabular}{c|cc}
& c & d \\
\hline
1 & 2,3 & 0,7 \\
2 & 8,0 & 1,1
\end{tabular}
\begin{tabular}{c|cc}
& c & d \\
\hline
1 & 0,0 & 5,4 \\
2 & 4,3 & 0,0
\end{tabular}
Find the range of $\phi$ which leads to more than one pure strategy Nash equilibrium using
the Bayesian normal form for this game.
