http://www.economist.com/research/articlesBySubject/displaystory.cfm?subjectid=7933608&story_id=16136704.

“THE dominant characteristic of the art market over the past ten years has been the globalisation of collecting. From London to Los Angeles, sales that once featured work exclusively by European and American artists now include new names from India, Africa and China. Anish Kapoor, Chris Ofili and Cai Guo-Qiang are now regularly shown alongside Andy Warhol and David Hockney. And more and more buyers are also emerging from Asia, Russia, Brazil and the Middle East.”