Omission bias

[5] In social political terms the Universal Declaration of Human Rights establishes how basic human rights are to be assessed in article 2, as "without distinction of any kind, such as race, colour, sex, language, religion, political or other opinion, national or social origin, property, birth or other status."

"[8] Spranca, Minsk and Baron extended the omission bias to judgments of morality of choices.

In one scenario, John, a tennis player, would be facing a tough opponent the next day in a decisive match.

Subjects were presented with two conditions: John recommends the food containing the allergen to hurt his opponent's performance, or the opponent himself orders the allergenic food, and John says nothing.

[9] The effect has also held in real-world athletic arenas: NBA statistics showcased that referees called 50 percent fewer fouls in the final moments of close games.