Peruvians are heading to the polls on Sunday in what is expected to be a tight presidential runoff, with the model behind one of Latin America¡¯s most stable economies at stake.

Voters will decide whether they finally give a shot to three-time runner-up Keiko Fujimori, a conservative seen as the guarantor of a successful economic model instituted in the 1990s under her father¡¯s presidency but also the heiress to his polarizing administration. The alternative is leftist lawmaker Roberto Sanchez, who wants to overhaul Peru¡¯s market-friendly constitution to redistribute wealth more fairly, particularly when it comes to the country¡¯s critical mining industry.

The winner will begin a five-year term on July 28.