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Charity Begins at Home
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Hannah Njeri may not know much about the intricacies of global trade, but she does know the power of "free marketing," as she calls it. Njeri, 45, sells vegetables outside the gas station on the Nairobi street where I live. Every morning she collects a few tomatoes, onions or beans from her tiny plot and spends the rest of the day selling what she can to passers-by and people who stop for petrol. Margins are small: Hannah makes just a few dollars a day, which she uses to help put her children through school. She would like to own her own...