Art organisations join other US businesses at a series of hearings this week in Washington, DC on the proposed 25% tariff on $300bn worth of Chinese goods

Early Schiele drawing is the low-key star of an unremarkable sale, topped by a flashy Picasso

Former public company status left the auction house at a disadvantage to rival Christie's, but its quarterly finance reports provided rare insight in a secretive market

French-Israeli media billionaire Patrick Drahi's company BidFair USA buys firm from shareholders

Three-year-old girl reportedly knocks a fly by the German artist Katharina Fritsch off plinth

Our pick of items from auctions and fairs around the world over the next fortnight

Collector interest in videos is rising, but the medium still struggles to find floor space

Johannesburg-based FNB Joburg fair has been bought by its former director Mandla Sibeko

The rise of Big Data means that connoisseurship is being replaced by "intel", which has far-reaching implications for the art world

The Berlin software entrepreneur tells us what he's bought and why he loves it

Viewing rooms, appetite-whetting preview publications and digital platforms are all paying off for galleries at the fair

The Portuguese artist’s work focusing on issues such as abortion and honour killings is more relevant than ever – and curators cannot get enough

The first rule of art fairs is don't talk about auctions—but sometimes they can benefit artists and their dealers

It is an open secret that sales are made in Venice, but dealers at the Swiss art fair are looking to capitalise on the buzz the Biennale creates

As a major retrospective on the artist is due to open at the Met Breuer in New York next year, we look at the German artist's market

South African gallery is first to be confirmed for new Cork Street redevelopment which has been empty since it was finished last year

Ethics specialist Piergiorgio Pepe claims the power in the art industry is still held in the hands of a few

Opinion that female artists make poorer investments has a lasting impact on the legacy of women, according to the research from Freelands Foundation

The coalition Art Against Displacement rallies against the construction of four contested luxury towers in a Manhattan Supreme Court hearing today

As British Columbia clamps down on foreign real estate investment, Chinese collectors are investing in contemporary Canadian art with "no expense spared”

Continuing Abstraction show will run off-site throughout the fair, featuring artists such as Willem de Kooning, Helen Frankenthaler and Theaster Gates

Max Levai will head up the newly consolidated global gallery as blue-chip dealers increase their real estate footprint and stretch their family legacies

She started off as an apprentice clown and did a stint as a currency trader, but it’s as a dealer in works of art in the vanguard of social change that Dominique Lévy has found her true calling

Our pick of highlights for sale over the next fortnight

The French Modern master’s oil painting Femme assise sur un balcon was withdrawn from a Canadian sale after bidding stalled below the reserve price

New commercial gallery shows—from notions of black culture in London to immigrant identity in Los Angeles

A successful second edition of the fair, with visits to houses and studios, and lots of collateral shows

Free of the high taxes and stringent customs of mainland China, the fair adds to a burgeoning art scene in South Korea's second largest city