In my keyboard travels I have mentioned many times the vast undocumented “wealth” of the developing world. In the West, we are used to a generally “formal” economy of rented spaces, vendor permits, and tidy marketplaces (for the most part). The rest of the world gets by (and is even thriving in a meaningful sense) without such restrictions. What can we learn from a more natural, “free” model of economy? Apparently global corporations already see the value …