Bolivian President Evo Morales

Bolivian President Evo Morales

Tomohiro Ohsumi/Bloomberg

Two months after persuading investors to lend South America’s poorest nation a half-billion dollars for 10 years at 4.875 percent, Bolivian President Evo Morales seized local units of Spain’s Iberdrola SA, at least the 15th takeover since he assumed power in 2006.