Last month, Twitter’s chief executive, Jack Dorsey, told the Senate Intelligence Committee he believes “the people use Twitter as they would a public square and they often have the same expectations that they would have of any public space.” But for all his vows of openness, the platform is making it increasingly difficult and expensive for academics to access tweets ...

Bloomberg After multiple turnaround plans and promises to restore growth, Deutsche Bank AG investors are no longer buying the talk. The German lender — already the worst-performing major bank stock in Europe this year — hovered near a record low on Wednesday after Chief Executive Officer Christian Sewing conceded that cuts to the investment bank are having a deeper impact ...

Bloomberg Barclays Plc’s Jes Staley has a stronger case to fend off the British lender’s activist shareholder as he delivers on a promise to grow its securities trading business. The unit saw fixed income, currency and commodities income substantially outperform US peers in the third quarter, rising almost 10 percent. Equity trading revenue surged by more than a third, the ...