Look at the second exercise here: (open yale course on game theory)
http://oyc.yale.edu/sites/default/files/problemset1_1.pdf
Does anyone understand the meaning of this from question a)
"What common amount of effort s^** should they agree each to supply to the firm if their aim is to maximize revenue net of total effort costs. "
What doe "revenue net of total effort costs" mean ?
Sorry, English is not my first language!
That would be called "operating profits"....just take the total sales and subtract the costs to provide the services.