“Black Swans” andgroup decision making have become familiar terms in the relevant fileds. There been many Black Swan events history, such as current covid9 epidemic or failed launch of Challenger space shuttle 1986. In run-up to launch, NASA conducts a conference call. This contains typical group decision-making issues. As an example, through access information. Aboutexamine impact social and h...

Probability matching is a robust and common failure to adhere to normative predictions in sequential decision making. We show that this choice anomaly is nearly eradicated by gathering individual decision makers into small groups and asking the groups to decide. The group choice advantage emerged both when participants generated responses for an entire sequence of choices without outcome feedba...