Modelling for success: sustainable business models for social enterprises
Through their research, the Asia Pacific Social Impact Centre's Jodi York and Krzysztof (Chris) Dembek, together with Management and Marketing's Professor Prakash Singh, have identified nine distinct business models used by social enterprise organisations working at the base of the pyramid (BoP) - the socio-economic term to classify the world's poorest people.
http://fbe.unimelb.edu.au/research/streams/decision-making-and-markets/business-model-matrix