"British" and "American" are not accurate as stand-ins for Commonwealth and North American English more broadly; actual practice varies even among national publishers. The Australian government's Style Manual for Authors, Editors and Printers preserves the points in the abbreviations, but eschews the comma after them (it similarly drops the title's serial comma before "and", which most UK and many US publishers would retain).  Editing Canadian English by the Editors' Association of Canada uses the periods and the comma;  so does A Canadian Writer's Reference .  The government publication The Canadian Style uses the periods but not the comma. 
Ronald Orol leads The Deal's coverage of activist hedge fund managers, a high-profile group of corporate investors who press for blockbuster deals and were the subject of his book "Extreme Value Hedging: How Activist Hedge Fund Managers are Taking on the World." Orol also specializes in reporting on bank and securities regulation in the wake of the 2008 financial crisis. Orol's reporting covers a wide range of Washington issues critical to dealmaking, including financial reform, Securities and Exchange Commission rules impacting IPOs and mergers and federal oversight of bank transactions. Orol is an occasional commentator on TheStreet TV, BBC World Television and National Public Radio.