Citigroup chairman Charles Prince has urged President George W. Bush to reinvigorate multilateral trade discussions and “identify a way forward” on the Doha round of trade talks.

In a letter also signed by British Airways chairman Martin Broughton on behalf of the TransAtlantic Business Dialogue, the executives said it was “unacceptable” that transatlantic differences over agriculture, representing less than 3 per cent of transatlantic gross domestic product, were dictating progress on increased market access for goods and services that comprise the majority of global trade.