 It is often claimed that Rawls’s parties are “risk-averse;” otherwise they would never follow the maximin rule but would take a chance on riskier but more rewarding outcomes provided by the principle of utility. Thus, John Harsanyi contends that it is more rational under conditions of complete uncertainty always to choose according to the principle of insufficient reason and assume an equal probability of occupying any position in society. When the equiprobability assumption is made, the parties in the original position would choose the principle of average utility instead of the principles of justice (Harsanyi 1975).