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Martin Gammon

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Deaccessioning

‘Uniquely egregious’: The disturbing precedent of the Baltimore Museum of Art’s deaccessioning plan

Sale of three valuable paintings by Warhol, Still and Marden points to a thirst for a $65m windfall, with no curatorial rationale

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Art market

Why the Christie's and Sotheby's duopoly is impregnable

The auction houses sell more than 80% of works priced over $1m at auction—can an underdog ever wrestle market share away from them?

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Leaders

The mirage of riches in museums’ vaults

Putting aside museum ethics, Martin Gammon looks at the financial viability of museums deaccessioning their collection as a quick fix for financial trouble

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Leonardo da Vinci

The Salvator Mundi may have changed the market for ever—but we have been through this before

Martin Gammon on the historical precedents of the $450m sale