with income-poor communities in order to "co-create businesses and markets that mutually benefit the companies and the communities". This process has been adopted by the SC Johnson Company and the Solae Company (a subsidiary of DuPont). Furthermore, Ted London at the William Davidson Institute at the University of Michigan focuses on the poverty alleviation implications of Base of the Pyramid ventures. He has created a BoP teaching module designed for integration into a wide variety of courses common at business schools that explain the current BoP thinking. He has identified the BoP Perspective as a unique market-based approach to poverty alleviation. London has also developed the BoP Impact Assessment Framework, a tool that provides a holistic and robust guide for BoP ventures to assess and enhance their poverty alleviation impacts. This framework, along with other tools and approaches, is outlined in London's Base of the Pyramid Promise and has been implemented by companies, non-profits, and development agencies in Latin America, Asia, and Africa. Another recent focus of interest lies on the impact of successful BoP-approaches on sustainable development. Some of the most significant obstacles encountered when integrating sustainable development at the BoP are the limits to growth that restrict the extended development of the poor, especially when applying a resource-intensive Western way of living. Nevertheless, from a normative ethical perspective poverty alleviation is an integral part of sustainable development according to the notion of intragenerational justice (i.e. within the living generation) in the Brundtland Commission's definition. Ongoing research addresses these aspects and widens the BoP approach also by integrating it into corporate social responsibility thinking. What is the actual shape of the wealth pyramid? The pyramid is a graphical depiction of inverse relationship between two variables as one increases the other decreases. We find that the percent of world wealth and the percent of world population controlling it are related with each other in an inverse relation. If we plot the world wealth in percent terms along the vertical axis of a graph and the corresponding percent population having control on it on the horizontal axis of a graph and add the mirror image of this graph on the left side of the vertical axis we get a wealth pyramid and can see that as we move to higher and higher wealth brackets we find that fewer and fewer people have access to it, thus the figure has a wide