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LONDON, March 1 (Reuters) - WPP, the world's largestadvertising company, recovered from third quarter weakness topost annual growth of 2.9 percent in organic revenue, ahead ofexpectations.
WPP, whose portfolio includes Ogilvy & Mather and Young &Rubicam, works for clients including Microsoft, Procter & Gambleand Shell, said headline operating margins rose 0.5 points to14.8 percent, in line with expectations.
A strong end to the year echoed performances from rivalsOmnicom and Publicis, who cited an improvementin emerging markets and the United States and were cautiouslyoptimistic on the outlook for 2013.
