Choosing the agent's group identity in a trust game with delegated decision making

Members of a given social group often favor members of their own group identity over people with different group identities. We construct a trust game in which the principal delegates the decision about an investment into a receiver to an agent who either favors the principal's or the receiver's group identity. When choosing the agent's group identity the principal faces a trade‐off between a loyal agent and an agent who might increase the receiver's willingness to cooperate. We solve for the principal's decision in a subgame‐perfect nash equilibrium for the two scenarios of a risk‐neutral and risk‐averse agent, respectively.