Twitter shares plumb new lows as stock lock-up expires

(Reuters) – Shares of Twitter Inc sank 18 percent to a new low in frenzied trading on Tuesday, wiping out more than $4 billion of its market value, as early investors sold stock in the messaging…

Arab uprising economies begin to improve

IMF says GDP growth will increase slightly in Egypt, Jordan, Morocco, Tunisia and Yemen from 2.8 per cent last year to 2.9 per cent in 2014

AstraZeneca fights Pfizer bid by predicting sales surge – eventually

LONDON (Reuters) – AstraZeneca Plc laid out its defense against Pfizer Inc’s $106-billion takeover approach on Tuesday by predicting its sales would rise by three quarters over the next decade,…