Retaliatory equity as a factor in humor appreciation

Squelches depicting a protagonist who is provoked and who then retaliates against his provoker were manipulated to effect a variation in the degree of retaliation achieved: extreme underretaliation, underretaliation, fair retaliation, overretaliation, and extreme overretaliation. It was proposed that retaliatory equity, i.e., a situation in which the negative consequences inflicted upon the provoker by the retaliator are of a similar magnitude to the negative consequences initially inflicted upon the retaliator, constitutes an optimal condition for mirth, and that both types of retaliatory inequity, under- and overretaliation, impair humor appreciation in proportion to the magnitude of the resultant inequity. The findings fully supported these propositions.