Galleries and artists see improvement after temporary relaxations were implemented to discourage nuclear proliferation

The empire builders are changing the rules

Art Basel '13 fair report

A scheduling clash and an unfriendly tax environment slowed business at most fairs

The rates for use tax and sales tax has increased to 7.5%

The story of Moscow's underground art of the 1970s

A new breed of buyer is crossing over from modern and contemporary art and acquiring the top pieces in every field

…but that didn’t stop the contemporary dealer opening Regen Projects’ biggest ever space with a first-class show last month

Art dealer who forged a successful business in Italy and New York from the 1950s.

Art Basel '12 fair report

They contributed to more than 100 lights and classic pieces occupying the booths

Dealers upbeat as first waves of visitors to the fair put any economic worries aside

The British-born dealer may be a reluctant power-player, but his new, larger space reflects his place in the pecking order

The case has proved to be colourful, with Tatintsian counter suing Nussberg for at least $62m

Argentina, Mexico and Brazil could be the future for a field struggling with limited supply

Policy decrees that works determined to be fake must be handed over to the authorities so that they cannot re-enter the market

Despite reservations, the former oncologist and “fierce” collector has become a dealer in contemporary art

Art Basel Miami Beach '12 fair report

Some galleries feel the major auction houses are encroaching on their rightful territory

Though sales have been fairly solid at the fair, few very high priced pieces have been shown due to anxiety around the stock market crisis

Is this new international gallery explosion a good move?

The settlement has not yet been revealed

The Parisian dealer was one of the first to tap into Asian markets

The most expensive pieces may have been slow to sell, but otherwise it was as if the downturn never happened

Art Basel '11 fair report