The Metropolitan Museum of Art in New York has 70 times the purchasing power of the British Museum and more than eight times that of the National Gallery in London, according to a report. Britains leading museums lag behind other world-class institutions in terms of the money available to spend on their collections, particularly when compared with those in America, France and the Netherlands. The world's four highest spending museums are the Met and the Museum of Modern Art (MoMA) in New York, the Louvre in Paris and the Getty in Los Angeles. Last year alone, the Met spent nearly 100 million (3.4 million) on works for its collection, of which 50.4 million (26.3 million) went on a single painting Duccio's Madonna and Child twice the amount that the British Museum, Victoria Albert, National Gallery and Tate spent all together. MoMA spent 37.1 million (20 million) including 3.3million (1.7 million) on David Hockney's landmark painting, Seated Woman Being Served Tea by Standing Companion, which it bought at Sotheby's in London four times more than the Tate across all its gallery sites. In Europe, the Louvre spent 25.2 million (16.8 million) and the Rijksmuseum, Amsterdam, 14.3 million (9.7 million). In contrast, the Victoria Albert spent 1.3 million and the British Museum, despite being Britain's second most visited free attraction, had 761,000 in its purchase funds. The research was conducted by the Art Fund, Britain's largest art charity. David Barrie, its director, said: "'When we started the research, we had a sense that many museums and galleries in foreign countries were doing rather better than ours. But nobody had any data. It was all anecdotes and rumours. The picture that has emerged is worse than we suspected. These figures indicate a real sickness. If museums can't collect, they will fail in one of their prime missions, and treasures will increasingly go abroad. "We knew the Met was rich, but the idea that they could coolly fork out 100 million in one year is really startling. I would have guessed they had 40 million.' Cautioning that Britain's best curators could be wooed to overseas museums, he added: if the money cannot come from public funds, then steps must be taken to encourage private philanthropy through better tax incentives." Apart from the Getty, all the overseas museums polled received some government funding and all took advantage of the various tax incentives available in their respective countries. Museums placed at the top of the table benefit from multiple tax incentives or generous government funding or, in the case of the French museums, a mix of both. Of the 53.4 million spent by the Met, 54 per cent was generated through cash donations thanks to 100 per cent tax breaks on donations to LTS museums. In France, the Louvre received 10.6 million thanks to a tax incentive introduced in 2003 that allows businesses to donate funds for the purchase of national treasures in return for a 90 per cent reduction in their tax bill. In one such case, AXA donated 7.5 million to the Louvre to purchase Portrait du duc d'Orléans by Ingres and offset 6.7 million from its tax bill. In contrast, British museums have watched helplessly as masterpieces with ever-increasing prices have gone overseas. This year the Tate could not buy William Blake's rediscovered drawings for Robert Blair's poem The Grave when these were auctioned by Sotheby's in New York. One of them went to the Louvre for a record 868000, but eight of the nineteen were left unsold. Everyone lost out. A significant collection was broken up and the owner received less than he would have done if he had sold to the Tate in the first place. It had offered 4.2 million. The sale proceeds, 3.9 million, fell short of Sotheby's minimum estimate of 6.8 million. Shocked that museums are facing 7 per cent cuts in their budgets, when they have already suffered a cut in the past five years, Mr Barrie called on ministers to take these "grim findings" seriously to avoid being blamed his future generations for having failed to support the nation's heritage.