These studies suggest that in competitive situations and social interactions, being in one’s territory provides an advantage, and can even outweigh other, potential disadvantages. In one of the only studies that has directly, tested the existence of the home field advantage in negotiation, I, along with my colleague Markus Baer of Washington University, found that the home field advantage effect exists not only because of a resident advantage but also a visitor disadvantage that in part stems from a decrease in confidence when entering another person’s territory. In this study, our resident were student who were asked to decorate and spend 20 minutes in an office prior to negotiating with a fellow student. Given the strength of the finding is not unreasonable to assume that this effect will be even stronger when someone negotiates in an office that has been theirs for more than 20 minutes.