Uruguayans head to the polls on October 27 for what is looking to be a close contest between the incumbent conservative coalition and the leftist Broad Front. But there’s another key player in the race: a constitutional referendum that could reshape the country’s pension system. Nicolás Saldías, a senior analyst for Latin America and the Caribbean at the Economist Intelligence Unit, profiles the major presidential candidates and details what’s on the line economically and politically if the pension reform is approved.