Multilevel

This is not the case with MLM, commonly referred to as Multilevel Marketing.

Purpleocity.net 2009

Multilevel group selection allows the evolution of cooperation, provided that one thing holds good: the ratio of the benefits to cost is greater than one plus the ratio of group size to number of groups.

SuperCooperators Martin A. Nowak 2011

Multilevel and kin selection in a connected world.

SuperCooperators Martin A. Nowak 2011

Multilevel modeling was used to identify predictors of mate appeal.

Birds, Bees: Choices, Costly Signals, and Genetic Adjustments 2009

Multilevel selection can spark off direct and indirect reciprocity, blazing impressive new trails of cooperation.

SuperCooperators Martin A. Nowak 2011

Multilevel results indicate that higher levels of economic segregation likewise are associated with depressed turnout, after controlling for individual voter characteristics and for state-level income.

Class and Voting: Chavismo and Bushismo 2009

Multilevel selection experiments in the laboratory vividly illustrate why a truth and reconciliation process is needed for the subject of group selection.

David Sloan Wilson: Truth and Reconciliation for Group Selection XIV: Group Selection in the Laboratory 2009

And thats because I discovered that lots of these Multilevel marketing clubs operate a pyramid system that is structured in such a way that you'll never rise to the top.

UPDATE ON GETAWAY CLUB! princesa 2009

Multilevel selection theory shows how altruism can evolve, despite being selectively disadvantageous within groups.

David Sloan Wilson: Truth and Reconciliation for Group Selection XIII: Hamilton Speaks 2009

Meyer, Alan D., and James B. Goes (1988), “Organizational Assimilation of Innovations: A Multilevel Contextual Analysis,” Academy of Management Journal, 31(4):897-923.

Diffusion of Innovations Everett M. Rogers 1995