"I think there's no new news here, emerging markets will not grow, we know that. Developed markets are carrying the growth, particularly in the U.S. and we are of the view that China is just fine, 6.9 percent growth is okay and we believe those numbers broadly," Kelleher told a conference in Dublin.

Kelleher also reiterated his view that London would "undoubtedly suffer" if Britain voted to leave the European Union at a forthcoming referendum, though he said it would remain an international financial center regardless and that Morgan Stanley were "certainly not contingency planning".

(Reporting by Padraic Halpin; Editing by Alison Williams)