This paper estimates the probability distribution of budgets, revenues, returns and profits to G-, PG-, PG13-, and R-rated movies. The distributions are non-Gaussian and show a self-similar stable Paretian form with non-finite variance and non-stationary mean.

The possibility of cooperation in a repeated prisoner's dilemma without memory is investigated in an evolutionary framework where 1) some agents ('Vulcans') are morally commited to cooperation, 2) some others ('Klingons') are not commited at all, and 3) there is random matching.