Ashok (A) and Beatrice (B) are a two-member team in an IT fum. Ashok decides first whether to work on difficult problems (D) or easy problems (E). Subsequently, Ashok and Beatrice choose their own effmt levels. We assume that the effort choices are made separately but simultaneously. Let XA and X8 denote the level of effort exerted by Ashok and Beatrice respectively. Both XA and Xs can take only two values: 4 or 10. That is X; E {4, 10} for i = A, B