Before revision:  While Kyle's lambda is a potential, i.e. converges to 0, for the Bernoulli distribured final payoff, its limit in general is different than 0. Also, differently from \mbox{%DIFAUXCMD BB
After revision:  While Kyle's lambda is a potential, i.e. converges to 0, for the Bernoulli distribured final payoff, its limit in general is different than 0.