According to research, people are more likely to trust and cooperate if they can tolerate ambiguity. As per research conducted by the Brown University, individuals who are tolerant of ambiguity - a kind of uncertainty in which the odds of an outcome are unknown - are more likely to cooperate with and trust other people. Tolerance of ambiguity is distinct from tolerance of risk. With risk, the probability of each future outcome is known.

Oriel FeldmanHall, author of the study said, If we consider how we go about navigating through our social worlds, we constantly need to figure out what other people are feeling and thinking. Even if someone tells us they are angry, they may not be telling us how angry they really are, or why they might be angry in the first place. In other words, we try to predict other people without ever having full access to their 'hidden' states." He further said,  Because we do not have full knowledge of others' feelings or intentions, it can be hard to figure out whether it is best to trust another person with money or information, for example, or cooperate with them when one's well-being is at stake.

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