Kat Chow, NPR (NPR.com)—In Nigeria, Barbie has some fierce — some brown — competition: Taofick Okoya, a 43-year-old entrepreneur, has created Queens of Africa dolls and Naija Princess dolls that are outselling Mattel’s classics. Okoya tells Reuters that he sells about 6,000 to 9,000 dolls a month and that he has “about 10-15 percent of […]