Herbalife is one of the world 's best-known " multilevel marketing " companies , along with avon and amway .
康宝莱和雅芳、安利一样，是世界知名的“多层次营销”公司之一。
In 2011 direct selling ( the vast majority of it through multilevel marketing ) by around 16m distributors generated sales of almost $ 30 billion in america .
The conjunction of the probabilistic and deterministic descriptions as well as of the macroscopic and microscopic views opens the way to a multilevel approach at the heart of present day complexity research as summarized below .
