Bates Worldwide, New York, has opened four Latin American offices to bolster its position in the emerging market. The agency announced agreements with AMW Publicidad, Santiago, Chile; Interandina Bates in Lima, Peru; and Jotave Bates in Mexico City. The agency would not say if they were affiliations or equity agreements. The agency also opened a Rio de Janeiro branch of its Sao Paulo office, Denison Bates. Dan Reid, managing director-worldwide client services, has taken on the additional title of chairman-Bates Latin America. He assumes that title from Bill Whitehead, recently promoted to chief operating officer of Bates North America.