Michael Pettis Profile picture
Apr 14, 2021 21 tweets 4 min read Read on X
1/19

Apologies in advance for this very long thread, but as regular readers know, I worry greatly about common misunderstandings of the role of reserve currencies. The author seems to assume that what makes a currency a dominant reserve currency is...

ft.com/content/3fe905…
2/19

its low frictional trading costs, which is why, he believes, digital currencies, with China in the lead, will dominate international trade.

But while a low frictional trading cost is a necessary condition, it is not nearly sufficient. A quick glance at the role of the...
3/19

US dollar over the past 100 years, the period during which it achieved dominant status, makes this clear: when the world was short of savings relative to its investment needs, during the first fifty years of that period (a period characterized by the global need to...
4/19

rebuild economically from 2 world wars) the US was a permanent net provider of savings to the world.

In the next five decades, however, when the global economy was substantially rebuilt and needed to export excess savings, the US automatically became a permanent net...
5/19

absorber of foreign savings. Of course during this time the US shifted from permanent trade surpluses, when the world needed the US to supply it with food, capital goods and consumer goods, to permanent trade deficits, when the world urgently some place in which to dump...
6/19

excess production of consumer goods.

This was no mere coincidence. To me it suggests three things. First, that reserve currency status is a function of a lot more than low-cost trading. In fact given that the cost is already so low, and seems to be in permanent decline...
7/19

decline anyway, I suspect it doesn't even matter much any more.

What seems to matter a lot more is the willingness of the reserve-currency country to run large imbalances in response not to its own needs but rather to the needs of the rest of the world. As an excellent...
8/19

CFR resource shows, the US typically absorbs 40-50% of global imbalances, and the Anglophone economies — with similar financial markets all of whom, like the US, punch way above their weights as international reserve currencies — collectively...

cfr.org/report/global-…
9/19

absorb 65-75% of global imbalances.

Given that China's currency (and that of other surplus countries, like Japan) punches so far below it's weight, it is surprising that anyone would argue that there is no relationship between the international status of a currency...
10/19

and its willingness and ability to absorb global imbalances.

Second, the reason these countries are "willing" to accept major reserve-currency status has more to do with ideology than with economic rationality, driven by, and reinforcing, the disproportionate power of...
11/19

the financial sector on domestic decision-making. Like the UK in the 1920s, they are perhaps too willing to sacrifice the needs of the producer side of their economies in order to maintain the overwhelming power of the financial side. The result, as Matthew Klein and I...
12/19

show in our book, is that these reserve-currency countries have constantly to choose between allowing unemployment to rise or allowing debt to rise. They have mostly chosen the latter.

yalebooks.yale.edu/book/978030024…
13/19

And third, while China has been promising for nearly two decades that its currency will achieve dominant reserve status within five years or so, in fact the RMB is probably the least important of the top ten currencies given China's status as the second largest economy...
14/19

and largest trader in the world, and by relevant standards its role has barely improved in the past decade and may even have declined.

Why? Because for all over-excited talk about achieving major international status, Beijing has always refused to take the economic...
15/19

steps needed to increase its role in absorbing global imbalances.

On the contrary, when Covid-19 created a demand shock in a world already suffering from excess savings and insufficient demand, Beijing had an incredible opportunity to boost the role of the RMB by...
16/19

boosting net domestic demand. Instead it implemented a muscular supply-side response that actually worsened its contribution to global demand imbalances.

In the end I do expect the international status of the US dollar eventually to decline, but not because of the...
17/19

rise of the yen (which, we were told in the 1980s and 1990s, was virtually assured) or of the RMB. Either it will decline because the US decides that it is no longer willing to absorb the huge and rising economic cost of dominant reserve-currency status to its producing...
18/19

sectors and its balance sheet in exchange for the declining geopolitical benefits and to maintain the status and dominance of of its financial sector (which may be the same thing), or it will decline when the cost of maintaining the power of the dollar helps...
19/19

sufficiently undermine the US economy, which has always been the real source of American power. The experience of the UK in the 1920s provides an accelerated vision of how that can happen.
1/2
I did a quick back-of-the-envelope calculation of currency-share to GDP-share of the top ten currencies:

NZD 9.4
HKD 8.9
SFR 6.2
GPB 4.2
Aus dollar 4.4
USD 3.6
Yen 2.9
Can. dollar 2.7
Euro 2.2
RMB 0.3
2/2

There are a lot of problems with this table, not least because it reflects a single point in time, and obviously the smaller the economy, the more likely it is to be an outlier, but it is still interesting.

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More from @michaelxpettis

Jul 26
1/10
Good essay by Justin Vassallo on the historical development of political attitudes in the US to trade and industrial policy. One problem is that many of us still believe that this is about whether or not we should embrace free trade.

@jhv85
compactmag.com/article/when-l…
2/10
Because it is easy to prove that global output is maximized in a world of free trade and comparative advantage, a common argument is that any US policy that intervenes in "free trade" or the "free market" undermines long-term wealth creation.
3/10
But the current debate in the US, the EU, and around the world is not about whether or not to embrace free trade. It is about whether "free trade" has any meaning in a world in which many major economies are heavily interventionist.
Read 10 tweets
Jul 25
1/6
Interesting piece by Jens Nordvig and Chris March on an historic shift in global money: "It is a reflection of our times that the sacrosanct strong-dollar policy, as with many other aspects of the post-war settlement, is now being reconsidered."

moneyinsideout.exantedata.com/p/how-to-manag…
2/6
While many analysts wonder if such an historic change is something we would want to initiate, I think it is more appropriate to wonder whether or not decades of deep structural changes in the global economy have made a once-manageable system unsustainable.
3/6
The article notes the G20 "commitment to move more rapidly toward more market-determined exchange rate systems to reflect underlying economic fundamentals, avoid persistent exchange rate misalignments and refrain from competitive devaluation of currencies."
Read 6 tweets
Jul 24
1/12
I've received a lot of comments about my recent piece on how, in a hyper-globalized world, a country that does not control its capital and trade accounts (and the US is among the those that don't) cannot control its economy.

@rodrikdani
carnegieendowment.org/china-financia…
2/12
I argue that it is foolish to bicker over whether or not the US benefits from trade policy. In a hyper-globalized world, a country that does not control its capital and trade accounts cannot avoid the impact of aggressive trade and industrial policies.
3/12
The meaningful question is whether or not the trade and industrial policies that have swept through the US economy, restructured and reduced its manufacturing sectors, and shifted production, should be designed in the US or abroad.
Read 12 tweets
Jul 24
1/6
It may seem counterintuitive, but fiscal deficits aren't caused by "too much spending".

The problem is that high levels of income inequality and net capital inflows have pushed up ex ante savings to levels that exceed the country's investment needs.

bloomberg.com/news/articles/…
2/6
You can see this in the fact that US businesses sit on huge piles of cash, even after using much of it to acquire their own or other companies' stocks. They don't seem at all eager to invest in productive facilities, probably because there isn't enough demand.
3/6
But savings and investment must balance. If high ex-ante savings from extreme income inequality and aggressive exports of capital by foreigners into the US don't result in higher investment, something must happen to lower savings in some other part of the economy.
Read 6 tweets
Jul 23
1/4
The Mexican government is expressing very strong criticisms about the structure of global trade and especially of China's role in global imbalances. On Saturday, Finance Minister Rogelio Ramírez de la O said that...

via @Mexico News Dailymexiconewsdaily.com/business/mexic…
2/4
Mexico needs to review its trade relationship with China because it isn’t “reciprocal.”

He said: "We buy US $119 billion per year from China and we sell $11 billion to China. China sells to us but doesn’t buy from us and that’s not reciprocal trade."
3/4
Ramírez went on to note that while China’s share of the global market for exports has increased to 14% from 3.8% in 2001, “this increase was to a large extent at the cost of North America.”
Read 4 tweets
Jul 23
1/5
Some analysts suggest that shifting consumption tax revenues from Beijing to local governments creates incentives for local authorities to devise policies to unleash consumer spending. But there is a risk here.

bloomberg.com/news/articles/…
2/5
The only sustainable way to boost the role of consumption in driving the economy is to raise the wage share of GDP, either directly or through transfers to households. Extending shopping hours, declaring consumption festivals, and so on, are a waste of time.
3/5
But there are two very different ways cash-strapped local authorities can boost consumption tax revenue If they transfer assets on their balance sheets directly or indirectly to households, this should boost consumption and expand consumption tax revenue.
Read 5 tweets

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