Peru’s dramatic rise from market pariah to investors’ darling was capped this year with investment-grade status awarded by Standard & Poor’s and Fitch, opening Peruvian capital markets to huge interest among institutional investors. Ironically, Alan García, the president who made Peruvian debt a no-go area in the 1980s with soaring inflation and bond defaults, oversaw the upgrades in his second term, two decades later as a free-market convert.
With low inflation, one of Latin America’s fastest economic growth rates at 9% this year and a free-trade agreement with the...