search query: @indexterm PYRAMID SELLING / total: 3
references: 1-3 / 3
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1.
Marketing Fraud: An Approach for Differentiating Multilevel Marketing from Pyramid Schemes
Journal of Public Policy and Marketing
2002 : SPRING, VOL. 21:1, p. 139-151
 2002 Nat, P. J. V.
Keep, W. W.
2.
A diet of hard sell. *HERBALIFE
Business
1987 : AUG, p. 59-63
 1987 Diamond, J.
3.
Two probability models of pyramid or chain letter schemes demonstrating that their promotional claims are unreliable.
Operations Research
1984 : MAY-JUN, VOL. 32:3, p. 527-536
 1984 Gastwirth, J. L.
Bhattacharya, P. K.
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