Citation: B. Rind et D. Strohmetz, Effect on restaurant tipping of presenting customers with an interesting task and of reciprocity, J APPL SO P, 31(7), 2001, pp. 1379-1384
Citation: B. Rind et D. Strohmetz, Effect on restaurant tipping of a helpful message written on the back of customers' checks, J APPL SO P, 29(1), 1999, pp. 139-144