April 1 (Bloomberg) -- Andy Warhol has overtaken Picasso as the world's most actively traded artist, said the French-based art-market database, Artprice, in its annual report on trends.
Warhol led the 2007 table of the world's 500 most auctioned artists with $422.3 million in sales, more than doubling the year-earlier $199.6 million, Artprice said....