Developing Capital

Just as entrepreneurs use innovative solutions to solve business challenges, the social entrepreneur uses innovation to solve the world's societal problems.  Twenty first century ideas can be recast to address age old problems such as poverty, hunger and disease.  The social entrepreneur marries the robust profit driven world of capitalism with the austerity of the developing world to produce long term, sustainable solutions to the most vexing of challenges.  

The infusion of capital is key in the process of improving life in the developing world. This capital, however, takes many forms some of which are obvious such as physical capital and some of which are more obtuse such as social capital, human capital and spiritual capital but perhaps equally important.  Interestingly, most of the developing world's problems were solved by the developed world some time in the past with techniques that are far less effective than those that we have access to now.  Developing solutions to these issues is not the problem, finding people to implement these solutions is.

Of the types of capital available to the developing world, which do think is the most valuable?