Table 3.

Meaning of letters.

Letter	Expression	Meaning
A	δ2P2 − P3 − CG2 − P1	The part of officials' “no trick” strategy benefits that exceed the “trick” strategy benefits when folks choose the “no exit” strategy
B	E − η2R	The part of folks' “exit” strategy benefits that exceed the “no exit” strategy benefits when officials choose the “trick” strategy
C	δ1P2 − CG2 − P1	The part of officials' “no trick” strategy benefits that exceed the “trick” strategy benefits when folks choose the “exit” strategy
D	E − η1R	The part of folks' “exit” strategy benefits that exceed the “no exit” strategy benefits when officials choose the “no trick” strategy