(Reuters) When the world's reserve banks need to create more money, they don't turn to printing presses, anymore. With a few keystrokes, trillions can pop into circulation, as happened after the 2008-2009 financial crisis.
Cash, it seems clear, is dead.
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New research from the Cambridge Security Initiative shows that although exchange and currency markets are changing, secure, government-printed notes and minted coins remain hugely important.