Presenting the award at a lunch in London yesterday, Lord Barnett, chairman of the adjudication panel, said Mr Trapp maintained a consistently high standard of journalism across the broad spectrum of financial and management issues he covered.
"There is a refreshing clarity and lightness of touch about his writing. Whatever the topic, he always searches out those who have fresh perspectives and something of interest to say. He explains the relevance of issues to his readers in an imaginative and relevant way."
Mr Trapp, who has been runner-up on three previous occasions, received a silver salver and a cheque for pounds 1,000.
Robert Bruce, accountancy correspondent of the Times and last year's winner, was runner-up.