Gift Exchange and the Separation of Ownership and Control
Sandra Maximiano, Randolph Sloof, Joep Sonnemans
Games And Economic Behavior, vol. 77, 2013, p. 41-60.

Gift Exchange in a Multi-worker Firm
Sandra Maximiano, Randolph Sloof, Joep Sonnemans
Economic Journal, vol. 117, 2007, p. 1025-1050.