Growth

Evidence on the sources and durability of economic growth, including productivity, investment, innovation, labor supply, capital formation, and policy. Coverage compares U.S. and international growth performance across time.

AI Summary. The United States generates almost twice as much economic output per dollar invested as China, the opposite of what would be expected from a mature developed economy versus a fast-growing economy catching up. The gap points to overexuberance in Chinese investment.

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The US generates ~2x as much output per dollar of capital as China. Rivaton and Southwood argue that relentless competition among Chinese subnational governments, who account for ~85% of public expenditure, drives industrial growth at the cost of reduced capital efficiency.

Does China get less economic output per dollar invested than America?

Core argument: The United States obtains nearly twice as much GDP from every dollar invested as China does, measured by the capital efficiency ratio of output to invested capital stock.

Overexuberance is visible in economic data. Interest rates that banks pay to depositors are capped, giving banks artificially cheap capital. Entrepreneurs may be backed to attempt extremely unlikely, borderline schemes. The capital efficiency ratio measures how much output a country gets out of the capital stock it has invested – how many dollars of GDP a country can buy with a dollar of investment. The United States gets almost twice as much economic output out of every dollar it invests as China does, precisely the opposite of what we would expect from a developed country with a mature economy versus a rapidly growing country playing catch up.

Takeaways by Macro Roundup® AI

  1. The United States obtains nearly twice as much GDP from every dollar invested as China does, measured by the capital efficiency ratio of output to invested capital stock.
  2. China’s capital efficiency inverts the expected pattern, in which a rapidly growing catch-up economy would extract more output per dollar of investment than a mature developed economy.
  3. Overexuberance is visible in Chinese macroeconomic data, with China’s investment generating less economic output per dollar than that of the United States.

AI Summary. China's credit to the nonfinancial sector—corporate, government and household borrowing—topped 300% of gross domestic product, 60 percentage points above its end-2019 level and larger than in the US, according to the Bank for International Settlements. The International Monetary Fund estimates broad Chinese government debt, including local financing vehicles, reached 127% of GDP, up from 98% in 2020.

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Credit to the Chinese nonfinancial sector was over 300% of GDP in 2025, 60pp above its 2019 level, driven by borrowing and slower GDP growth. It has risen by more than $43T since late 2012.

How much has China's debt risen relative to GDP?

Core argument: China’s credit to the nonfinancial sector topped 300% of GDP last year, 60 percentage points above end-2019 and far above the U.S. level, according to the Bank for International Settlements.

Last year, China’s credit to the nonfinancial sector—a broad measure of corporate, government and household borrowings—topped 300% of gross domestic product, 60 percentage points higher than at the end of 2019 and now far bigger than in the U.S. It has jumped by more than $43 trillion since Xi took office in late 2012, according to the Bank for International Settlements. China’s government says its debts are under control. Central government borrowings were only around 30% of GDP in recent years, small compared with federal debts in the U.S. A broader gauge of overall Chinese government debt—including official local borrowings as well as the debts of these local government financing vehicles—ballooned to an estimated 127% of GDP last year, according to the International Monetary Fund, up from 98% in 2020.

Takeaways by Macro Roundup® AI

  1. China’s credit to the nonfinancial sector topped 300% of GDP last year, 60 percentage points above end-2019 and far above the U.S. level, according to the Bank for International Settlements.
  2. Chinese nonfinancial-sector credit has risen by more than $43 trillion since Xi Jinping took office in late 2012, according to the Bank for International Settlements.
  3. The International Monetary Fund estimates broad Chinese government debt, including official local borrowings and local government financing vehicles, reached 127% of GDP last year, up from 98% in 2020, while central government borrowings were around 30% of GDP.

AI Summary. An artificial intelligence investment boom that is insensitive to interest rates is drawing capital, electricity and labor away from rate-sensitive sectors such as housing and autos, which the author argues will force the Federal Reserve to hold rates higher for longer. The durable fix is expanding power, chip and infrastructure supply.

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Sløk warns the rate-insensitive AI buildout has triggered unbalanced growth in the US economy by crowding out capital, electricity, and labor from vulnerable sectors like housing and autos.

Does a rate-insensitive AI boom force the Fed to keep rates higher?

Core argument: The AI boom’s insensitivity to interest rates is draining capital, power and labor from rate-sensitive sectors such as housing and autos, producing a “Dutch disease” dynamic in the US economy.

AI's rate-insensitive boom is draining capital, power and labor from vulnerable sectors like housing and autos. Trapped between inflation driven by the AI boom and weakness in rate-sensitive industries, the Fed will have to keep interest rates higher for longer. Because monetary policy cannot resolve this sectoral imbalance, the only durable fix is expanding the supply of power, chips and infrastructure.

Takeaways by Macro Roundup® AI

  1. The AI boom’s insensitivity to interest rates is draining capital, power and labor from rate-sensitive sectors such as housing and autos, producing a “Dutch disease” dynamic in the US economy.
  2. Caught between AI-driven inflation and weakness in rate-sensitive industries, the Federal Reserve will have to hold interest rates higher for longer.
  3. Monetary policy cannot resolve the imbalance between AI and rate-sensitive sectors, leaving expansion of the supply of power, chips and infrastructure as the only durable fix.

AI Summary. Inflation-adjusted gross domestic product per person has grown at a 1.9% annual pace over the past 10 years, above the 1.7% of the 2010s and 0.8% of the 2000s and just below the 2.1% of the 1980s and 1990s. Avoiding prolonged recessions has supported household incomes and wages.

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Real median household income and real wages have risen since the mid-2010s, as real GDP per capita grew 1.9% annually over the past decade. Average real weekly earnings have grown since 2010, after falling substantially between 1973 and 1990.

Have incomes and output per person grown faster than in recent decades?

Core argument: U.S. per-capita GDP has grown at a 1.9% annual inflation-adjusted pace over the past 10 years, exceeding the 1.7% of the 2010s and 0.8% of the 2000s.

Some of the increase in both household incomes and wages can be chalked up to steady economic growth. Per-capita gross domestic product has risen at a 1.9% annual, inflation-adjusted pace over the past 10 years, which doesn’t sound like much but is better than in the 2010s (1.7%) and 2000s (0.8%) and only slightly below the 2.1% growth rate of the 1980s and 1990s and 2.2% of the 1970s.Avoiding recessions — and ensuring that the unusual pandemic-caused downturn in 2020 was short-lived — has done a lot for Americans’ incomes.

Takeaways by Macro Roundup® AI

  1. U.S. per-capita GDP has grown at a 1.9% annual inflation-adjusted pace over the past 10 years, exceeding the 1.7% of the 2010s and 0.8% of the 2000s.
  2. The 1.9% per-capita GDP growth rate of the past decade sits only slightly below the 2.1% pace of the 1980s and 1990s and the 2.2% pace of the 1970s.
  3. Avoiding recessions and keeping the pandemic-caused 2020 downturn short-lived has done a lot for Americans’ incomes, with steady economic growth accounting for some of the rise in household incomes and wages.

AI Summary. A basket of 42 AI stocks accounts for 60%-80% of all S&P 500 earnings growth, price returns and capital spending, while 60% of S&P 500 stocks sit 20% or more below their highs and only 30% outperform the index. AI-related construction spending has risen 38%, the only positive trend as manufacturing, commercial real estate and residential construction decline.

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Since January 2024, JPM’s 42 AI-related stocks drove 67% of S&P 500 returns, 58% of earnings growth, and 81% of capital spending. Cembalest notes, “the technology share of GDP growth has risen from almost zero in 2022 to ~33%,” and only 20% of states are outpacing national GDP growth, the lowest level since 1979.

How concentrated are US market and economic gains in AI?

Core argument: A basket of 42 AI stocks accounts for 60%–80% of all S&P earnings growth, price returns and capital spending since January 2024, with AI primarily benefitting AI supply chain companies rather than the companies adopting it.

A basket of 42 AI stocks accounts for 60%-80% of all S&P earnings growth, price returns and capital spending since Jan 2024. At the same time, 60% of S&P 500 stocks are down 20% or more from their all-time highs despite the market being close to all-time highs. Only 30% of stocks are outperforming the S&P 500, one of the lowest figures since 1991. AI is primarily benefitting AI supply chain companies rather than the companies adopting it. The technology share of GDP growth has risen from almost zero to 2022 to ~33%. Only 20% of US states are growing faster than the national average, almost the lowest figure since 1979. AI accounts for the only positive trend in US construction spending, having risen by 38% since January 2024. Unfortunately the other three main categories are down since then (manufacturing -28%, commercial real estate -13% and residential -6%). That’s why the decline in planned data center projects is something to watch.

Takeaways by Macro Roundup® AI

  1. A basket of 42 AI stocks accounts for 60%–80% of all S&P earnings growth, price returns and capital spending since January 2024, with AI primarily benefitting AI supply chain companies rather than the companies adopting it.
  2. 60% of S&P 500 stocks are down 20% or more from their all-time highs even as the index sits near record levels, and only 30% of stocks are outperforming the S&P 500, one of the lowest figures since 1991.
  3. AI accounts for the only positive trend in US construction spending, rising 38% since January 2024, while manufacturing is down 28%, commercial real estate 13% and residential 6%.

AI Summary. Second-quarter real GDP growth was revised up 0.7 percentage points to +2.2% at an annual rate, reflecting upward revisions to consumption (to +3.8%) and investment (to +4.6%). Private fixed investment was revised up to +9.0%, driven by data center spending in nonresidential structures.

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GS forecasts that the FOMC will not hike in October, will do one 25bp hike in December and “ultimately conclude that additional rate hikes are unnecessary.”

What drove the upward revision to second-quarter GDP growth?

Core argument: U.S. real GDP growth in Q2 was revised up 0.7pp to +2.2% quarter-over-quarter annualized, led by upward revisions to consumption (+0.4pp to +3.8%) and investment (+1.9pp to +4.6%).

Real GDP was revised up by 0.7pp to +2.2% in Q2 (quarter-over-quarter annualized), largely reflecting upward revisions to consumption (+0.4pp to +3.8%) and investment (+1.9pp to +4.6%) growth. The strength in consumer spending in Q2 likely continued to reflect the boost to consumer cashflow from larger-than-usual tax refunds, but we continue to expect consumer spending growth to slow somewhat in 2026Q4 as the fiscal support fades and the headwind from higher energy prices remains. Stronger investment growth reflected an upward revision to private fixed investment (+0.5pp to +9.0%), driven by data center investment in the nonresidential structures category (+1.9pp to +0.1%), and an upward revision to the contribution from inventories (+0.2pp to -0.5pp).

Takeaways by Macro Roundup® AI

  1. U.S. real GDP growth in Q2 was revised up 0.7pp to +2.2% quarter-over-quarter annualized, led by upward revisions to consumption (+0.4pp to +3.8%) and investment (+1.9pp to +4.6%).
  2. Private fixed investment growth in Q2 was revised up 0.5pp to +9.0%, driven by data center investment in nonresidential structures, revised up 1.9pp to +0.1%, alongside a +0.2pp revision to the inventory contribution, to -0.5pp.
  3. Q2 consumer spending strength likely reflected the cashflow boost from larger-than-usual tax refunds, with spending growth expected to slow somewhat in 2026Q4 as fiscal support fades and higher energy prices remain a headwind.

AI Summary. The author argues that a slowdown in artificial-intelligence capital spending would remove a stimulus that has been masking weakness, colliding with overcapacity, falling prices, refinancing needs and weaker labor income. On this view the main risk is deflationary, transmitting through investment, employment, consumption, credit, housing and asset prices at once.

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Kedrosky argues that the “inevitable transition” from the current inflationary AI-buildout regime to a new regime in which AI-driven productivity gains exert deflationary pressure is “where the real macro risk lies.”

Would an AI spending slowdown create deflationary rather than inflationary risk?

Core argument: The author argues the dangerous phase arrives when the AI capex boom slows, removing stimulus just as overcapacity, falling prices, refinancing needs and weaker labor income hit together, with a refinancing wall waiting in 2028.

If AI investment has been masking underlying weakness, a slowdown removes the stimulus just as overcapacity, falling prices, refinancing needs and weaker labor income hit together. A refinancing wall sits waiting in 2028. Failure is over-determined. This moment sits at the intersection of the four forces that have produced the most consequential boom-bust cycles in Western economic history: loose credit, government policy, technology, and real estate. There are, as a result, myriad catalysts, each with a low probability of happening, but which collectively guarantee collapse. That is why the principal risk is deflationary rather than inflationary. An AI bust could transmit through capex, employment, consumption, credit, housing, and asset prices simultaneously.

Takeaways by Macro Roundup® AI

  1. The author argues the dangerous phase arrives when the AI capex boom slows, removing stimulus just as overcapacity, falling prices, refinancing needs and weaker labor income hit together, with a refinancing wall waiting in 2028.
  2. The principal risk from an AI bust is deflationary rather than inflationary, according to the author, because it could transmit simultaneously through capex, employment, consumption, credit, housing, and asset prices.
  3. The author places this moment at the intersection of loose credit, government policy, technology, and real estate — the four forces behind the most consequential boom-bust cycles in Western economic history — and sees a plausible decade of Japan-style balance recession with fiscal stimulus constrained by massive deficits.

AI Summary. China faces three options as external demand weakens: shift a larger share of national income to households so consumption absorbs more output, keep relying on investment despite weak returns, or let production and growth slow. The first requires substantial changes in income distribution and saving incentives; the second risks more debt and excess capacity; the third implies higher unemployment.

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“Beijing cannot choose whether China will adjust; one way or another, it will.” Pettis warns Zhongnanhai against postponing rebalancing with another round of debt-financed investment “despite increasingly weak returns.”

What choices does China face as external demand weakens?

Core argument: China faces three options: shift a larger share of national income to households so consumption absorbs more output, keep relying on investment despite weak returns, or allow production and growth to slow.

What it can choose is how painful that adjustment will be. If weaker external demand is met by encouraging more borrowing and domestic investment, regardless of whether that investment is economically justified, China risks postponing the inevitable. China therefore faces the same basic choice Japan confronted, but with deeper imbalances and less accommodating global conditions. It can shift a larger share of national income toward households and allow consumption to absorb more of what the economy produces; or it can continue relying on investment, despite increasingly weak returns; or it can allow production and growth to slow. The first choice requires a substantial change in the domestic distribution of income and the incentives to save. The second risks still more debt and excess capacity and, ultimately, a more painful adjustment. The third implies higher unemployment and weaker growth.

Takeaways by Macro Roundup® AI

  1. China faces three options: shift a larger share of national income to households so consumption absorbs more output, keep relying on investment despite weak returns, or allow production and growth to slow.
  2. China confronts the same basic choice Japan faced, but with deeper imbalances and less accommodating global conditions, and can choose only how painful the adjustment will be.
  3. Meeting weaker external demand with more borrowing and domestic investment, regardless of whether it is economically justified, risks further debt and excess capacity and a more painful adjustment, while slower growth implies higher unemployment.