Elene Gabre-Madhin on TED.com talking about the development of markets

http://www.ted.com/talks/lang/eng/elene_gabre_madhin_on_ethiopian_economics.html

In specific she's talking about developing a market in Ethiopia but as a former World Banker she also goes through some economic theory that it behooves extempers to know well. In particular, think aout how she describes and explains the link between sellers access to markets and economic development. The development of a futures market and a rating system for grain that allowed purchase (and sale) of commotidites over long geographical distances (and time) is an important concept for developing nations, particularly Africa and Asia. Latin America, perhaps as well, though I have my doubts that the concept applies as well in the region.