"I have made a fortune on the international financial markets and yet I fear now that the unrestrained intensification of laissez-faire capitalism and market values spreading through life is threatening the future of our open and democratic societies," Soros wrote in an article published in Swedish newspaper Dagens Nyheter. "The arch enemy of an open society is no longer the communist threat but the capitalist one. It is wrong to make `survival of the fittest` a leading principle in a civilised society." The 4,000 word essay, packed with references to Austrian philosopher Karl Popper and other thinkers, outlined the dangers of the free market. "I claim that open societies can be threatened from the right as well as the left, from exaggerated individualism, from too much competition, and too little cooperation," he wrote. Soros said he did not place laissez-faire capitalism in the same category as Nazism or communism. But he argued that accepted economic theories of supply and demand did not necessarily work in the real world. History had shown, he said, that financial markets collapsed and caused depressions and social disturbance. Soros, whose Open Society foundation finances media and cultural projects in eastern Europe, said it was a shame other wealthy financiers had not joined him in setting up charitable foundations in the region. He criticised western societies for failing to give enough help to former communist countries.