It is possible to reconfigure the payoffs in the game in
Exercise S3 so that the children’s statement in their ad is a threat, rather
than a promise. (a) Redraw the tree from part
(a) of Exercise S3 and fill in payoffs for both players
so that the children’s statement becomes a threat in the full technical sense.
(b) Define the status quo in your game, and determine
whether the threat is deterrent or compellent.
(d) Explain why the implied promise is automatically
(e) Explain why the children would want to make a threat
in the first place, and suggest a way in which they might make their threatened