Competition, Trust and Cooperation edited by Y. Shionoya and K. Yagi, and published by Springer (ISBN 3-540-67870-0).
Yamamori discusses redistribution as a process of entrance, game, and exit, and the recognition of differences as a process of entrance, communication, and exit. Interventions in the game or at the exit perpetuate and strengthen boundaries between people (between women and men, between independent people and dependent people, between different racial groups, etc.). Only intervention at the entrance will dissolve the boundaries. Most income maintenance instruments apply during the game or at the exit, and so perpetuate and strengthen boundaries. A Citizen’s Income is applied at the entrance, and so dissolves boundaries and reduces inequalities.