After losing ground to Bank of America (BAC) and Citigroup (C), Morgan Stanley (MS) is looking to regain its mergers and acquisitions lead in Russia, says Bloomberg, adding that Morgan Stanley lost its Russia Chairman Rair Simonyan and President Elena Titova to Rosneft in 2012.
Yahoo Inc's board has approved a deal to buy blogging and social networking site Tumblr for $1.1 billion in cash, …