ocr: There is little social mobility in Bolivia; the main routes for advancement are the armed forces or the cocaine business. Generally, the indigenous peoples who form the rural poor - are the worst off. The Andean highlands are extremely poor; economic growth is concentrated in the fertile, tropical eastern lowlands, where the population density is lowest. The small number of wealthy Bolivian vacation in Brazil or Miami. German luxury goods, - and Mercedes cars in particular, are popular among Bolivians and the small German immigrant population. Arecent reduction in tariff barriers has resultedi ...