WHEN BANK OF America took over Merrill Lynch in September 2008, it looked like bad timing for Merrills Latin American investment banking business. After having shown a lack of commitment to Latin America for several years, Merrill Lynchs then chief executive, John Thain, was just six months into a renewed build-up in the region. In March 2008, the firm had taken on nine senior investment bankers in Brazil to spearhead a push in the region and they were just beginning to make inroads. Given Bank of Americas perceived bias towards its domestic market, it seemed that the push made on the Merrill Lynch side at broadening into Latin America would, once again, be abandoned or slowed. Two years on, though, those thoughts now seem consigned to history. The combined firm is in the top five for market share in Latin America in M&A, ECM and DCM and it has no...