1. The Token Economy;Ayllon,1968
2. The drive to amass wealth;Fenichel,1947
3. The Protestant Work Ethic and attitudes towards unemployment;Furnham;J. occup. Psychol.,1982
4. Inflation and the estimated sizes of notes;Furnham;J. econ. Psychol.,1983
5. Value systems and anomie in three cultures;Furnham;Int. J. Psychol.,1984