This is a great and timely conversation.
I will start by quibbling with a couple of assumptions:
A world reserve currency (in this case the US Dollar), requires that the country supplying the world with reserves run continuous current account deficits. Since much of foreign reserves are filled via trade balances, the country supplying the world with these reserves must always run trade and budget deficit imbalances. However, as the rest of the world continues to develop and modernize, this puts the economy of the country supplying reserves are a continuous decline in the size ratio of its own economy relative to the rest of the world. This, combined with ever growing deficits means the the entire world will reach a tipping point where confidence in the reserve currency wains as the debt burden grows and economy backing the reserve currency diminishes.
One issue here is that this concern could have been brought up in 1985, 1995, 2005, 2015, or 2025. How has the status quo persisted so long, against the reasoning presented by Triffin? I think a lot of the explanation has to do with the fact that the US economy is the
largest in the world, comprising over
26% of world GDP. Plus, foreign countries only need USD for trade, debt, and foreign reserve purposes, not to support their whole economies.
If someone in Chile, for example, wants to buy a tanker of oil from Mexico, they must first trade something for US dollars because oil is priced in USD. But if they want to buy domestically produced items like food, housing services, etc, they can just use Chilean pesos because the seller accepts the local currency. So Chile, in this example, only needs access to as much of the reserve currency as is necessary for international trade. And then, not even all imports are traded in USD. Sometimes the seller will accept their local currency, and it is feasible to just trade currencies with a third party. This involvement of a third party currency dealer used to be costly and awkward in the pre-digital age, but may no longer be a limitation. We'll return to that.
62% of the world's GDP is international trade (the sum of all imports and exports), and
54% of that trade was conducted in USD. Thus, USD would be used for the US's own 26% share of the world economy, plus (0.62 * 0.54 =) another 33.5% of the world's GDP, minus the
27% of US GDP is accounted for by imports and exports to avoid double-counting. So (0.26 * (1-.27))+0.335 = 52.5% of world GDP.
According to these napkin calculations, half of dollars are still applied to domestic use even after all these decades, due to growth. If the US grows faster than the rest of the world's trade and savings demand, then more newly produced dollars will be applied within the US. If the US grows slower than ex-US dollar demand, then a greater percentage will be used as a currency outside of the US. Amazingly, the
share of world GDP attributed to the U.S. has been in a stable range between roughly 25% and 30% since at least the 1970's. This sure
looks like a stable system.
A small percentage of GDP growth in the massive US economy requires the production of many more dollars than much more rapid growth in, say, India or South Africa, because those smaller economies are starting at a much lower level. Thus, when the US grows 3% in a year, it must produce a lot more new US dollars for that reason than it needs to produce to support India's 6.5% GDP growth. Even less so when we consider that people in India only need dollars for certain reasons, like certain categories of imports or for government reserves and private savings demand. How many nominal dollars does that growth in demand require, as a % of US GDP? Not much.
An alternative to Triffen's Dilemma: The world's GDP growth has a brake on it, and the brake is the supply of US dollars. Thus the world as a whole cannot grow very much faster than the production of new USD. That's why the system has been so stable for so many decades. Yes, if it was possible for world GDP to grow much faster than the US's over a long period of time, then the US would face a Triffen Dilemma. But that cannot happen as long as the US keeps its ratio of GDP to world GDP in range.
From the perspective of the US dollar, the debt to GDP ratio continues to ride at all time highs and will almost assuredly rise from here over the next 5-10 years.
https://fred.stlouisfed.org/series/GFDEGDQ188S
Meanwhile, the amount of currency held by foreigners also continues to rise at all time highs.
https://fred.stlouisfed.org/series/FDHBFIN
The burden this places on the US economy and its currency is heavy. The US trade deficit continues to decline as it has for decades now.
https://tradingeconomics.com/united-states/balance-of-trade
The rest of the world is becoming more and more independent from the US in many ways and as the rest of the world continues to develop, the size of the US economy in relation to the outside world will diminish.
This is definitely a problem from the perspective of the U.S's trade partners, who are getting a raw deal trading the fruits of their labor for an ever-expanding pile of debt. For people in the U.S. though, it is a windfall. Foreigners want USD so badly they are willing to work harder for USDs than we are willing to work for them! This is why imports are so cheap.
As if that wasn't enough of a lotto ticket, international dependence on the USD creates a massive market for US treasuries, which means US taxpayers do not have to pay the full cost of their government. Demand for US debt is so high, that the rate of interest on treasuries usually hovers close to the rate of inflation, which means taxpayers are borrowing at near zero real rates!
So is it a problem? From the perspective of people in the U.S. these deficits enabled by the USD's reserve currency status should be seen as the golden goose.
The US can't sustainably provide a modernizing world with continued currency reserves backed by an ever growing trade and budget deficit. It isn't sustainable for the US, nor will other nations be contiuously willing to place their growing reserves with a country's currency that becomes less and less stable and relevant.
IDK. It's a system that has been sustained for many decades now. The U.S. has 4.1% unemployment, almost 3% GDP growth, ample liquidity, and until a few months ago was viewed as a safe haven of stability. What makes it an emergency now? Why are Americans convinced they should give up world reserve currency status, and the extreme privileges that come along with it?
Certainly, the system
could unravel
if the U.S. were to shoot itself in the foot and intentionally destroy its advantages.
One such scenario could involve a US spiral into economic depression after forgetting all the lessons our central banking and regulatory systems have learned over the years. Perhaps financial deregulation, a less-independent Fed, or tightening money supply in the face of falling aggregate demand would do the trick?
A second possibility might involve a failure to supply foreign users with sufficient currency, such as through extreme restrictions on trade. If a country cannot sell enough things to people in the US to meet its needs for US dollars, then that country would be forced to find other currencies with less liquid markets. Those less-liquid currency markets then become more liquid and suddenly you have an alternative to the dollar. Which brings us to the next point...
But, there isn't really any other fiat currency that would even be capable of replacing the US dollar. No other nation would have the capability of running current account deficits in the way the US does in order to even supply other nations with the reserves they require. I feel in the short-term, this means we'll likely see a more multi-reserve currency world.
This is where I'm sure I'm going to lose 90% of readers in this forum...
Where does that leave us in the long term? I truly feel that the days of a global US dollar reserve currency are numbered. Just as Triffin predicted the sustainability of the Bretton Woods gold-backed US dollar reserve currency, I (and many others) believe that his dilemma still holds true under modern monetary theory. If no other fiat currency is ideal for replacing the US dollar, I believe it is only a matter of time for nations to turn to bitcoin for providing national reserves and facilitation global trade.
There is already foreign trade taking place with bitcoin today. Russia is now facilitating oil trades with China and India with bitcoin. More and more nations are looking at bitcoin as a potential reserve. We're beyond the thought that nations will look to ban bitcoin. The US is keeping its stock of bitcoin as a reserve and there are several bills in Congress that are looking to further solidfy bitcoin as a reserve for the US. There are multiple countries that hold bitcoin in varying stats of legal reserve status, including the US, China, UK, Bhutan, El Salvador, with many more pursuing it. Since the Triffin dilemma holds true for any nation that must fund the world with its currency, it makes sense that, from here, the world seeks out a currency that is truly independent from any singular nation and is free from this dilemma.
There would be much hardship for the global economy if it were to abruptly abandon the US dollar as a reserve currency, but there would be even more hardship for the US. The US has enjoyed "exorbitant privilege" of having reserve status for its currency. It has been able to fuel deficits with far lower rates than the rest of the world. This is why I feel a forward looking transition to bitcoin sooner for the reserve country would prove to be pivotal for this transition. If the US began its fueling its bitcoin stockpile sooner than other foreign nations, it would be able to offset some of the burden of its own currency losing reserve status. The appreciation of bitcoin from other nations funding their reserves with bitcoin means that the US would be able to offset more of its debt and interest burden from having its currency as a reserve and the potential crisis that would unfold if there were less global demand for US dollars. At its core, a play into bitcoin would be a hedge against the world seeking to move away from the US dollar as a reserve currency. This is why I feel that bitcoin and the US dollar are not at odds with each other, but can actually be strategically beneficial.
Actually, there is an alternative emerging as a challenger to the USD as reserve currency. It's called
BRICS Pay, and it's not so much a new currency as it is a blockchain-based standard for making cross-border payments and currency exchanges. This system would allow users in a country like Saudi Arabia to transact directly with users in a country like China without having to convert their local currencies to USD's or going through the SWIFT system. This would bypass US sanctions and regulatory rules, but without the disadvantages of cryptocurrencies. It is a technological solution to the problem developing countries face with having their growth limited by the availability of USD's, and always being forced to sell their labor to the U.S. for cheap in a desperate attempt to obtain USDs.
Unlike bitcoin, BRICS Pay already has 45.2% of the world's population on board, representing 36.7% of GDP. Thus, it has the scale to become a bigger payment system than the USD. It is still in testing phase, but is due to be rolled out soon. This system has the potential to dethrone the USD as world reserve currency, by making it unnecessary to have a world reserve currency. It could be the beginning of the end for the American middle class as we know it.
Bitcoin will never be used for international trade on a massive scale for the simple reason that its supply cannot be expanded sufficiently quickly to adapt to GDP growth. Thus it is supposed to be deflationary. But nobody in their right mind would ever go into debt in terms of a deflationary currency, or trade away their currency while it is going up in value. Thus, a true goods-and-services cryptocurrency economy has yet to be established, even 16 YEARS after bitcoin's introduction. Bitcoin's unsuitability for real-world trade or lending, and its limitation to facilitation of crime and speculative trading, are both stable attributes that have not changed in many years.
BRICS Pay, OTOH, does not rely on any one country's currency, can expand almost indefinitely, and could offer better terms of trade for non-US parties transacting with one another. Compared to bitcoin, it offers a method for cross-border transactions that do not require one to acquire a commonly-accepted currency resource prior to transacting. The fantasy that developing nations will buy bitcoins for the equivalent of millions of dollars should be put to rest.
So if we are very, very charitable to the intelligence and loyalty of the U.S. administration, they see BRICS Pay coming and are trying to prop up the role of the dollar in international trade by making it more scarce (weak dollar policy and tariffs), and by holding crypto assets. However, the economic brake caused by USD scarcity will only make more countries want to consider BRICS Pay. Also, BRICS Pay will eventually bypass whatever use case remains for cryptocurrencies held by people in the U.S.
The right thing to do, from the US perspective, would be to continue policies that expand its GDP at a rate close to world growth to keep the US share of world GDP stable, and to make USD's more transact-able by expanding the trade deficit while reducing the budget deficit. Such a policy would send a surplus of dollars into overseas investment and nip BRICS Pay in the bud by crowding it out of international commerce. It seems the U.S. is taking the opposite course of action, so BRICS Pay is likely to be a big hit. I privately speculate about the administration's true motives for making such boneheaded moves...
The USD's status as a reserve currency is why Americans can buy imports so cheaply, pay less in taxes, and keep inflation low. As BRICS Pay gains its share of world trade, the USD is likely to devalue in comparison with other currencies and the U.S. will likely face an economic headwind, if not a full fiscal crisis. Much of the USD's value is based on it being the exclusive reserve currency, so the arrival of competition will devastate its international value.