Michael Pettis Profile picture
Oct 2, 2020 10 tweets 3 min read Read on X
1/10
I agree, Adam, that what happened in Japan is a very important story, but I would add that your graph shows Japanese government debt, which is only half the debt story. In the 1980s, when Japan was still growing quickly, private-sector debt grew more rapidly than...
2/10
Japanese government debt. In the 1990s, however, when Japanese GDP growth had pretty much dropped to zero, private-sector debt began to shrink as a share of GDP, just as government debt began its rapid growth.
tradingeconomics.com/japan/private-…
3/10
I think, in other words, that while there was growth in Japanese debt after 1990-92, there was also a lot of shifting of debt from private-sector to government balance sheets. The reason I think this is important is because of what it might tell us about China.
4/10
Until the early 1990s Japanese GDP growth – which was unbalanced towards investment rather than consumption, although not nearly to China's extent – had become heavily reliant on rising private and public sector debt. Because in the late 1980s much of this went to fund...
5/10
non-productive investment, the country's total debt-to-GDP ratio began to grow rapidly (when debt is used to fund productive investment, debt grows, but debt to GDP doesn't).

Once the growth in Japanese debt began to reach limits in the early 1990s, however, GDP mostly...
6/10
stopped growing.

After that Japan partially rebalanced at the same time that debt shifted from private-sector balance sheets to public-sector balance sheets. I think these two were related. The effective shifting of debt from private to public balance sheets may have...
7/10
been one way that income shifted to households. Their income grew more slowly than GDP before 1990s but more quickly after, which is perhaps why the collapse in Japanese GDP growth never seemed to bother Japanese households as much as you might otherwise have expected.
8/10
The implication for China is that it can maintain rapid GDP growth only as long as debt can rise much faster than GDP, but once the growth in debt slows, GDP growth must drop sharply. So far this probably isn't controversial, but what is more complicated is...
9/10
to understand what will happen next. Japan, I think, represents one way China can evolve, with a long period of very low growth as it shifts, rather than resolves, the debt burden.

In the end resolving the debt burden just means recognizing and allocating...
10/10
the costs of writing it down, which is politically painful. Shifting it onto government balance sheets is a way of spreading out the allocation of costs over a very long period, although this may come at the cost of much slower growth.

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More from @michaelxpettis

Sep 17
1/6
According to the WSJ, after a few years in which the earnings of the poor rose faster than the earnings of the rich, in 2025 the earnings of the rich have risen faster. In theory this should have resulted in a lower US trade deficit.
wsj.com/economy/us-eco…
2/6
That's because the rich consume less of their income than the poor, and so a shift in the relative income share from poor to rich should have reduced overall US consumption and increased overall US savings, which in turn should have reduced the US trade deficit.
3/6
But the US trade deficit continued to expand. This seems pretty strong evidence that the US trade account isn't driven only by domestic conditions, as most mainstream economists assume. What foreigners choose to do matters just as much or even more.
Read 6 tweets
Sep 16
1/6
SCMP: "President Xi Jinping has called for more efforts to develop a unified domestic market, arguing that it will be crucial to helping China secure an edge in international competition and meet its development goals."
scmp.com/economy/china-…
2/6
In a hyperglobalized world, a country gets to choose between economic sovereignty and global integration. The more it chooses to integrate into the global trade and capital system, the less control it exerts over its domestic economy.

rodrik.typepad.com/dani_rodriks_w…
3/6
The world is probably better off if every country chooses more global integration (i.e. has more open trade and capital accounts and less control over its external imbalances). This maximizes the benefits of international trade.
Read 6 tweets
Sep 15
1/7
In August, both growth in industrial output and growth in retail sales came in well below expectations, with the former up 5.2% and the latter up 3.4% (compared to 5.7% and 3.7%, respectively, in the previous month).
english.news.cn/20250915/7a106…
2/7
As always, the key point is that for all the talk of rebalancing, the proxy for output growth continues to outpace the proxy for consumption growth by quite a large margin.

Meaningful rebalancing requires that consumption outpace GDP growth by roughly two percentage points.
3/7
Some analysts argue that the weaker-than-expected growth in industrial output may be evidence that Beijing’s attempt to rein in involution is starting to work. Industrial output growth in July and August came in at the lowest paces in all of 2025.
Read 7 tweets
Sep 12
1/8
Bloomberg: "China urged Mexico to “think twice” before levying tariffs, a warning that could signal Beijing’s willingness to retaliate over a move it sees as giving into demands from the US."
bloomberg.com/news/articles/…
2/8
Mexico announced plans earlier this week to impose duties of as much as 50% on cars and other products made by China and several Asian exporters.

These are the kinds of stories I think we'll see more of in the next year or two.
3/8
In the past ten years Chinese exports to Mexico have nearly doubled, and its trade surplus has surged, to $71 billion last year.

This bilateral evolution must be understood as part of a global shift.
Read 8 tweets
Sep 12
1/14
Barry Eichengreen warns, correctly, that "The dollar’s international primacy isn’t eternal. To be sustained, it has to be actively fostered and preserved."

But why sustain the dollar’s international primacy? Is this merely a modern monetary fetish?
wsj.com/finance/curren…
2/14
While the primacy of the dollar is certainly good for bankers, financiers, and very wealthy owners of movable capital, what's much less obvious is the extent to which it benefits or harms American workers, manufacturers and middle class households.
3/14
Some analysts will argue that being able to transact in dollars benefits American exporters and importers by reducing currency hedging costs, but the more honest ones will acknowledge that the benefits are tiny, at best, and that their lack doesn't seem to hamper rivals.
Read 14 tweets
Sep 11
1/10
Interesting new IMF paper on the extent of industrial policy subsidies to Chinese manufacturers and SOEs (to the extent information is available) and their impact on productivity.
imf.org/en/Publication…
2/10
It measures national-level cash subsidies, tax benefits, subsidized credit, and subsidized land, which collectively amount, it says, to a high 4% of GDP. The authors note that other subsidies exist, including sub-national subsidies, but these are harder to measure.
3/10
I'd include in the latter what is perhaps among the biggest subsidies, which is over-spending on logistical infrastructure. To the extent that these cost more in resources than they create in economic value, they represent a large transfer to the users of the infrastructure.
Read 10 tweets

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