The drunk side of trust: Generalized and instantaneous trust at gathering events

We present novel evidence on the nexus between alcohol intake and trust at a large cultural gathering event. Throughout six editions, we interviewed nearly 2,000 attendees and collected an objective measure of alcohol intake (Blood Alcohol Concentration, BAC) using electronic breathalyzers and self-perceived measures of intoxication. We elicited different self-reported trust measures toward eventgoers and the general public. While alcohol intoxication is not correlated with trust toward the general public, there is a positive and significant nexus between alcohol intake and trust toward the other participants in the event ( Instantaneous trust ). Only a small part of this effect (15%) is driven by an increased trust in other drinkers at the event. Taken together, these findings indicate endogenous group formation regarding alcohol intake. • Limited research exists on moderate drinking’s effects on trust, risk aversion, and impulsiveness. • We study alcohol’s impact on trust at the event “La Notte della Taranta” with objective intoxication measures. • Objective data reveals alcohol’s unique impact on trust. • No direct link found between generalized trust and alcohol intake. • Alcohol consumption correlates positively with instantaneous trust, especially among like-minded attendees.