You and a Competitor Are Both Considering the Launch of a New

You and a competitor are both considering the launch of a new product line,which could be made of either plastic or glass.
$\begin{array}{|ll|l|l|}\hline & & {\text { You useplastic }} & {\text { You use glass }} \\\hline \begin{array}{l}\text { Competitor } \\\text { plastic }\end{array} & \text { uses } & \text { You: 25 } & \text { You: } 100 \\& & \text { Competitor: 25 } & \text { Competitor: 50 } \\\hline \begin{array}{l}\text { Competitor } \\\text { glass }\end{array} & \text { uses } & \text { You: } 50 & \text { You: 25 } \\& & \text { Competitor: } 100 & \text { Competitor: } 25\\\hline\end{array}$ Are there one or more Nash equilibria to this game? If so,indicate by circling the cell(s).What is the main lesson to be learned from this game?