EL ALTO, Bolivia — Fanning out across ... new money and unconventional architecture. Mamani moved to the city as a young man from a small rural town where farmers raised quinoa and llamas.

Saturday’s signing ceremony underscored the importance of fostering economic opportunity in rural Bolivia as part of a growing partnership with the country’s own farmers and decision makers. President ...

But that’s not the only reason the ramshackle city—which overlooks Bolivia’s de facto capital ... nueva arquitectura andina–the New Andean Architecture. For, as Mamani explains, his ...