\begin{definition}[Definition:Coordination Game]
The '''coordination game''' is an instance of a class of games whose mechanics are as follows:
There are two players: $\text A$lexis and $\text B$everley.
They wish to go out together to a musical concert to experience either the music of Mozart or Mahler.
Unaccountably, both $\text A$ and $\text B$ prefer Mozart.  (It takes all sorts to make a world.)
The key points are:
:$\text A$lexis and $\text B$everley wish to coordinate their behaviour
but:
:they have common interests.
\end{definition}