Help required with example of real-life matrix

If, for example, I was in an ongoing dispute with a troublesome, anti-social neighbour, where it is best if we both cooperate:

would this be a valid matrix? -

I assign points as follows.

I cooperate: +1 for him
I defect: -1 for him

He cooperates: +1 for me
He defects: -1 for me

number pairs in this form: me/him

He cooperates He defects

I cooperate +1/+1 -1/+1

I defect +1/-1 -1/-1

which would make, if we wish:


He cooperates He defects

I cooperate 2 0

I defect 0 -2

What do you think? I would value a mathematician's opinion.

Thank you,

Simon Perry.


  • Web page addresses and e-mail addresses turn into links automatically.
  • Allowed HTML tags: <a> <em> <strong> <cite> <code> <ul> <ol> <li> <dl> <dt> <dd>
  • Lines and paragraphs break automatically.

More information about formatting options

To prevent automated spam submissions leave this field empty.
By submitting this form, you accept the Mollom privacy policy.