France, Feb. 15 -- Just after sunrise, Miriam Otieno lifts her two-year-old son on to her back and locks the door of her one-room house in Nairobi's Eastlands. By 7am she will be at a stall in the market, carefully arranging pyramids of tomatoes.

For years, Miriam's son would go to work with her, tied to her back while she sold on the stall. Some days, she paid a neighbour to watch him. Some days neither was an option and she would stay at home with him, losinga day's income.

Across Kenya's cities, informal markets keep the economy moving - and women make up the majority of traders.

Yet the system around them rarely addresses childcare. Markets are built for business, not children. Workdays are long, profits are small and childcare, wh...