There's interesting research from Joe Henrich and others that says if your country was at war, especially when you were young, then we test you 30 years later in a commons dilemma or a prisoner's dilemma, you're more cooperative.
Postoji zanimljivo istraživanje Joea Henricha i drugih koje kaže da ako je vaša zemlja bila u ratu, naročito ako ste tada bili mladi, i testiramo vas 30 godina poslije o dilemi općeg doba ili zatvorenikovoj dilemi, bit ćete kooperativniji.