“London is one of the dominant forces in the world’s contemporary art market, second only to New York. At least that’s the conclusion suggested by the success of the Frieze art fair, which opened in the capital yesterday. At last year’s inaugural event, dealers sold art works worth up to £20m, according to the organiser, Matthew Slotover. The number of exhibitors this year has risen from 125 to 150, and hopes are that business will be better still.”