John and Amy have agreed to divide any fudge left over after today. Every time Amy eats a piece of fudge today and also John does, vice versa as well. Their tactics are termed as: (1) grim strategy. (2) tit-for-tat behavior. (3) copy-cat behavior. (4) echoing tactics. (5) second mover advantages.
Can anybody suggest me the proper explanation for given problem regarding Economics generally?