A new $250 bill has been proposed to celebrate America's upcoming semi-quincentennial, and Donald Trump has a plan to put his face on it. This might be easy to dismiss as yet another example of his overblown ego. But that would be a mistake. If Trump goes ahead, it could undermine faith in what remains the world's reserve currency at the worst possible time.
Trump's allies in Congress have already introduced a law that allows for an exception to the existing rules that no living president can appear on American banknotes. Designs have apparently already been commissioned from the Bureau of Engraving and Printing, which designs dollar bills. There are still plenty of obstacles in the way. The legislation still has to be passed for one, which is never easy, even with a Republican majority in Congress. But even if it doesn't happen, or is delayed beyond the main celebrations, Trump has already decided to become the first living president to add his signature to the notes. What used to be American money is steadily being turned into Trump money.
Trump's $250 bill could undermine the dollar's credibility
That may seem harmless enough. Trump loves the limelight, and what's a few pictures on the banknotes? In Britain, we have always been happy to have the monarch on notes and coins, and the same is true in many other countries. It is not as if we use cash as much anymore, and it is hard to imagine many people will be using the $250 note regularly. But in reality, this is a symptom of something far more serious – a warning sign about the underlying strength of the dollar.
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There is a reason central banks have always put weighty historical motifs on their notes. The British have the likes of Winston Churchill and the Duke of Wellington. The European Central Bank has never managed to agree on any real people or buildings – since one member or another would end up taking offence – but has done the best it can with synthesised images of historic building styles. The Bank of Japan has a selection of famous scientists from the country's history. All over the world, central banks choose an image everyone can feel proud of.
There is a logic to that. Paper money is basically a conjuring trick. It is only worth something because we all accept it is worth something, and we are willing to exchange it for goods and services. Reaching into a nation's past is one way of establishing its credibility. It gives paper money an air of tradition and solidity. Without that, there is a real risk people might start thinking it is just a few brightly coloured pieces of paper.
King Dollar is under attack
This is the worst possible time to start taking risks with the US currency. The challenges to the dollar have been growing stronger all the time. The US budget deficits are out of control, running at 6% of GDP even when the economy is doing well, and eventually the rest of the world will get tired of financing those. Central banks globally now hold more of their reserves in gold than they do in dollars, and while that is partly because the price of the precious metal has risen so much over the last year, it is also an illustration of how they are diversifying away from the dollar. China has already launched a digital yuan and is starting to promote it as a serious alternative for settling payments for cross-border trade. The cryptocurrencies led by Bitcoin have had a rough year, but there is little sign they are going away and with every year that passes, they become more established within the financial system, and were always designed as an alternative to the dollar.
The list goes on. On their own, none of those factors might be enough to knock the dollar from its throne as the world's most important currency. But when they all come together at the same time, the greenback is clearly at risk. Like a Latin American strongman, Trump is intent on personalising the government of the US and boosting his own reputation. But if he goes ahead, this may well turn into the moment when the world decides the dollar was not the rock-solid reserve currency any longer and decides to switch to something new. If that happens, the results won't be pretty for the US economy, and Trump may well come to regret his vanity project.
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