The giant consumer company Jorge Paulo Lemann put together with Warren Buffett has lost half its value.
Joseph Safra's multibillion-dollar banking empire now falls to the next generation.
But debate continues as to whether bitcoin has merit as a speculative investment or a store of value.
Miami offers a large concentration of rich Brazilians in a small area.
Abused women must represent at least 2 percent of outsourced employees at the mogul's retail company.
Financial-technology startups have boomed in Brazil as digital newcomers target big banks.
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