Whitney Johnson is the co-founder and president of the investment firm Rose Park Advisors – Disruptive Innovation Fund, and a Harvard Business Review blogger. Prior to co-founding Rose Park Advisors, Ms. Johnson was Merrill Lynch's Senior Telecom and Media analyst for Latin America. As a sell-side equity analyst, Ms. Johnson developed expertise in valuing publicly traded securities and in analyzing how management can create or destroy value. She was rated by Starmine as a superior stockpicker vis-à-vis her peers, and became an Institutional Investor all-star within a year of becoming an analyst -- an honor she was accorded for eight consecutive years. Her specialty is Mexico where the stocks she followed accounted for roughly 40% of Mexico's market capitalization. In 2005, when Ms. Johnson left sell-side research, she had earned a coveted double-ranking in the Institutional Investor survey -- #1 in Latin American media and #2 in Latin American telecoms -- and was widely considered the axe on stocks under her coverage.