I'm trying to use my limited knowledge of LaTeX to create a payoff matrix by hand. Here's my first try:

              &                 & Player $Y$      & \\
              &                 & $A$               & $B$ \\
Player $X$  & $A$               & $(x,y)$           & $(x,y)$ \\
              & $B$           & $(x,y)$         & $(x,y)$ \\

However, what I've written isn't great, because

  • The lines extend too far, instead of simply creating a box enclosing the payoffs
  • How to center "Player X" and "Player Y" over the box?
  • There's also a mysterious "missing $" error.

Are there any tips I'm missing that would fix these issues and make this into a great-looking payoff matrix? Thanks for your help!


Please post complete minimal examples rather than code fragments. They make it much easier to help.

Maybe something like this?

I don't know why you would want 'Player Y' centred over any box, so I've assumed you don't really mean it.

      & \multicolumn{1}{c}{} & \multicolumn{2}{c}{Player $Y$}\\
      & \multicolumn{1}{c}{} & \multicolumn{1}{c}{$A$}  & \multicolumn{1}{c}{$B$} \\\cline{3-4}
      \multirow{2}*{Player $X$}  & $A$ & $(x,y)$ & $(x,y)$ \\\cline{3-4}
      & $B$ & $(x,y)$ & $(x,y)$ \\\cline{3-4}


Or possibly

      \multicolumn{2}{c}{} & \multicolumn{2}{c}{Player $Y$}\\\cline{3-4}
      \multicolumn{1}{c}{} &  & $A$  & $B$ \\\cline{2-4}
      \multirow{2}*{Player $X$}  & $A$ & $(x,y)$ & $(x,y)$ \\\cline{2-4}
      & $B$ & $(x,y)$ & $(x,y)$ \\\cline{2-4}


| improve this answer | |
  • Many thanks again for your help CFR. I tried to generalize your first example to the 3x3 case without much success. Could you take a look at this question? tex.stackexchange.com/questions/304011/… – Mathemanic Apr 13 '16 at 3:58
  • @cfr experts (you also expert, 158k) suggest not to use vertical line. In this case is it good practice? – alhelal Mar 31 '19 at 17:11

Check out the sgame package, which nicely packages this all up for you: https://www.economics.utoronto.ca/osborne/latex/sgame.pdf

Your example game could be written as:

& $A$ & $B$ \\
$A$ &(x,y) &(x,y)\\
$B$ &(x,y) &(x,y)
| improve this answer | |
  • Yes, it does the job, but unfortunately it is incompatible with the array package, which can be a stopper. – egreg Oct 30 '19 at 16:07

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