A tax on financial transactions is "an idea that has come of age", said 1,000 economists worldwide. The experts urged finance ministers from the Group of 20 nations to implement a "Tobin tax" to help the poor. "The financial crisis has shown us the dangers of unregulated finance, and the link between the financial sector and society has been broken," according to a letter from the economists. "It is time to fix this link and for the financial sector to give something back to society."

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