題組內容
A new supermarket moves to a community. Other supermarkets don't know if this supermarket is tough or weak. The leading
supermarket likes to beat up weak supermarkets, but doesn't like to fight tough supermarkets. The leading supermarket gets to scc
how the new supermarket decorates its store. The new supermarket can choose either high-class decoration or mediocre decoration.
Tough supermarkets get utility of 1 from high-class decoration and O from mediocre decoration. Weak supermarkets get utility of 1
from mediocre decoration and O from high-class decoration. The leading supermarket gets payoff of I from fighting a weak
supermarket, -1 from fighting a tough supermarket, and 0 from not fighting. The new supermarket's total utility is its utility from
decoration minus w if the leading supermarket fights it and it is weak, and utility from decoration plus s if it is strong and the leading
supermarket fights it.