In one-shot investment game experiments where each player's payoff is a convex combination of own and other's profit, trust remains unaffected by the extent of interdependence whereas trustworthiness reacts positively to it.

We experimentally examine how group identity affects trust behavior in an investment game. In one treatment, group identity is induced purely by minimal groups. In other treatments, group members are additionally related by outcome interdependence established in a prior public goods game. Moving...