Political Calculations
Unexpectedly Intriguing!
04 September 2026

We first wrote about Hauser's Law in 2009. At the time, we described it as "one of the stranger phenomenons in economic data". The law itself was proposed by W. Kurt Hauser in 1993, who observed:

No matter what the tax rates have been, in postwar America tax revenues have remained at about 19.5% of GDP.

In 2009, we found total tax collections the U.S. government averaged 17.8% of GDP in the years from 1946 through 2008, with a standard deviation of 1.2% of GDP. Six years later, we revisited it once again and found that while the standard deviation was the same, average total tax collections from 1946 through 2018 was lowered to 16.8% of GDP because of 2013's comprehensive revision of GDP that significantly boosted historic GDP estimates after the basic GDP formula was redefined.

Seven years later, we're revisiting the historic data once again to see if it still holds. Spoiler alert: it does!

Here's a triple-set of charts to show off Hauser's Law in action!

Hauser's Law in Action: 1946-2025

Since we're now spanning 80 years worth of data, during which the U.S.' maximum income tax rate has ranged between 28% and 92% of income, we confirm once again that the U.S. government's total tax collections have averaged 16.8% with a standard deviation of 1.2% of GDP from 1946 through 2025. If you know your normal distribution bell curve from statistics, that means over 99% of the U.S. government's total tax collections from 1946 through 2026 would be expected to fall between 13.2% and 20.4% of GDP, which they have.

The pattern also holds true for U.S. personal income tax collections, although here, the average is 7.7% of GDP and the standard deviation is 0.8% of GDP.

What all these numbers mean is that the U.S. government's tax collections have been remarkably stable as a percent of GDP, or the national income, over the last eight decades, regardless of how the top income tax rate has been set. We think that represents a political equilibrium, especially as higher rates of tax collections have not been able to be sustained.

There are just four periods where tax collections rose more than one standard deviation above the mean level, none of which proved to be sustainable.

  1. In 1968, the Democratic U.S. Congress and President Lyndon Johnson passed a shock 10% income surtax that took effect in mid-year, spiking the top tax rate from 70% to 77% and increasing the amount collected from top income tax earners by an additional 10%. Coupled with a spike in inflation, for which personal income taxes were not adjusted to compensate, this tax hike led to outsize income tax collections in that year.
  2. The sustained high inflation of 1978 (7.62%), 1979 (11.22%), 1980 (13.58%) and 1981 (10.35%) led to higher tax collections through bracket creep, as income tax brackets in the U.S. were not adjusted for inflation until 1985 as part of President Ronald Reagan's first term Economic Recovery Tax Act.
  3. Beginning in April 1997, a cut in the capital gains tax rate caused the Dot Com Stock Market Bubble to being inflating. As it expanded, the bubble minted a large number of new millionaires as investors swarmed to participate in Internet and "tech" company initial public offerings or private capital ventures, which in turn, inflated personal income tax collections. Unfortunately, like the vaporware produced by many of the companies that sprang up to exploit the investor buying frenzy, the illusion of prosperity could not be sustained and tax collections crashed with the incomes of the Internet titans in the bursting of the bubble, leading to the recession that followed. It eventually came to an end in 2003 after the capital gains tax rate was increased to be equal to the dividend tax rate once again.
  4. In 2022, tax collections spiked with the recovery from the coronavirus pandemic after government-mandated lockdowns and restrictions on businesses were lifted.

There's one final piece of the puzzle we haven't tackled, and that's why the U.S. national debt has grown so large even as federal tax collections have been so relatively stable. Here we find three factors that have contributed to its growth:

  1. The launch of Medicare in 1965 coincides with a period in which government spending no longer drops below the long-term average of tax collections. Before Medicare was passed into law, government spending only surged above that level when wars were fought, dropping back to pre-war levels after they ended. World War 2 is a classic example, with its drawdown in spending taking place in the years after it ended in 1945. The 1980s Cold War defense buildup also shows the same pattern, with spending returning to pre-buildup levels as a percent of GDP in the 1990s as a peace dividend.
  2. The Great Financial Crisis of 2008 led to massive bailouts by the U.S. government. Even though that crisis ended, spending failed to return to its pre-crisis level because President Obama's Affordable Care Act permanently inflated the government's spending from 2014 onward.
  3. The Coronavirus Pandemic of 2020 led to massive government subsidies to offset the impact of the extreme economic disruption caused by state and local government lockdowns. However, two Biden administration initiatives combined to permanently inflate government spending above their pre-crisis levels: the American Recovery Act with its inflationary impact and the cynically-named Inflation Reduction Act that further boosted spending. These two initiatives kept government spending elevated at levels far above what the U.S. government can reasonably expect to collect in taxes based on the last 80 years of experience.

And that, in a nutshell, is why the U.S. government has gone from running mostly balanced budgets in the years before 1965 to running consistently in the red in the years since with few exceptions. The upward ratcheting of government spending in the years since 1965, and particularly since 2008 to levels far above what the U.S. government is capable of sustaining through its stable tax collections is why the national debt has grown to exceed $40 trillion.

Previously on Political Calculations

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03 September 2026
Couple sitting among moving boxes in new home photo by Vitaly Garievon Unsplash - https://unsplash.com/photos/couple-sitting-among-moving-boxes-in-new-home-QpRjfYmGtbk

The median price of new homes sold in the United States paid by their buyers is declining.

Incentives provided by homebuilders to entice sales is offsetting an increase in mortgage rates in recent months, improving the affordability of new homes. So much so that new homes have become relatively more affordable than existing homes.

Here are the three numbers that define how affordable a new home is for a typical American household in July 2026 and how they've changed from the values we reported for May 2026:

  • Median new home sale price: $393,800 (decrease of $31,100)
  • Median household income: $88,150 (increase of $504)
  • Average 30-year conventional fixed mortgage rate: 6.54% (increase of 0.10%)

Assuming a 0% down payment, a new home sold in July 2026 at the nation's median sale would have a mortgage payment that consumes 34% of the income earned by a household at the exact middle of the U.S. spectrum of income. The following chart reveals the typical new home sold in the U.S. moved to fall within the affordable reach of the typical American household during July 2026:

Mortgage Payment for a Median New Home as a Percentage of Median Household Income, January 2000 - July 2026

The relative affordability thresholds indicated on the chart are defined by the 28/36 rule that mortgage lenders traditionally use to determine whether to extend a mortgage to new home buyers. Here, a monthly mortgage payment that consumes more than 36% of a household's income means that the median new home sold is fully outside the affordable reach of a household earning the median income, even if it has no other debts. At the other end of the rule, a mortgage that does not exceed 28% of a household's income is considered affordable even with average levels of other kinds of debt.

July 2026's relative affordability level falls between these two levels, but nearer the upper end, which means a new home is affordable for a household earning the nation's median household income provided it maintains a low level of other kinds of debt.

References

U.S. Census Bureau. New Residential Sales Historical Data. Houses Sold. [Excel Spreadsheet]. Accessed 25 August 2026.

U.S. Census Bureau. New Residential Sales Historical Data. Median and Average Sale Price of Houses Sold. [Excel Spreadsheet]. Accessed 25 August 2026.

Freddie Mac. 30-Year Fixed Rate Mortgages Since 1971. [Online Database]. Accessed 1 September 2026. Note: Starting from December 2022, the estimated monthly mortgage rate is taken as the average of weekly 30-year conventional mortgage rates recorded during the calendar month.

Image Credit: Couple sitting among moving boxes in new home photo by Vitaly Gariev on Unsplash.

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02 September 2026
An editorial cartoon of a Wall Street bull and bear bouncing on a trampoline while looking at a stock chart labeled 'S&P 500'. Image generated by Microsoft Copilot Designer

The S&P 500 (Index: SPX) rebounded back above its mean trend in August 2026 after briefly breaking below it.

Through the end of trading on Monday, 31 August 2026, the index' value was just slightly below its its trailing 20-day moving average. Meanwhile, the moving average itself was about 96 points (or about 1%) above the level the mean trend trajectory the index has established during its current period of relative order, which has largely held in the 32 months since 31 December 2023.

The following chart visualizes the relationship between the value of the S&P 500 and its underlying trailing year dividends per share from 29 December 2023 through 31 August 2026:

S&P 500 Index Value vs Trailing Year Dividends per Share, 29 December 2023 through 31 August 2026

Previously on Political Calculations

Image Credit: Microsoft Copilot Designer. Prompt: "An editorial cartoon of a Wall Street bull and bear bouncing on a trampoline while looking at a stock chart labeled 'S&P 500'".

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01 September 2026
Median Household Income - US Map

Motio Research's initial estimate of U.S. median household income for July 2026 is $87,810, a $300 (or 0.34%) decrease from the firm's initial estimate of $88,110 for June 2026.

Here are screenshots of the interactive charts Motio Research provides to visualize trends in the U.S.' median household income. The first chart presents the firm's Household Income Index, which is based on three-month moving average that sets the period of January 2010 through March 2010 at a value of 100 after making adjustments for inflation and seasonality in the data. The second chart presents their monthly median household income estimates in nominal (not adjusted for inflation) terms for the period from January 2010 through July 2026.

Monthly Household Income Index

Motio Research: Household Income Index, January-March 2010 through May-July 2026

Median Household Income Estimates

Motio Research: Nominal Median Household Income Estimates, January 2010 - July 2026

Here is Motio Research's commentary for July 2026, in which they raise an alarm for seeing their median household income estimates and index record their second decline in as many months:

Motio's original monthly headline series, which begins in 2010, includes Census-imputed income data and shows a recent deterioration in the income level.

Nominal median household income fell 0.3 percent in July to $87,810, its second consecutive monthly decline. The combined June–July fall of 0.6 percent was the second-largest two-month decline outside the pandemic disruption in the series, exceeded only in May–June 2010, when household income was still contracting in the aftermath of the 2007–09 recession.

Real median household income fell 0.7 percent in July to $88,060, following a 0.5 percent decline in June. The U.S. Real Median Household Income Index fell to 118.0.

“These readings do not establish a formal turning point,,” said Romina Soria, co-founder and principal economist at Motio Research. “But year-over-year growth in real household income has slowed to nearly zero, while both real and nominal income have now fallen for two straight months. The next releases will show whether household income rebounds or continues to weaken.”

Since Motio Research's estimates are derived from survey-based data, it's possible they're seeing some noise from turnover in the sampled population being surveyed each month. It's more likely however the survey-based data is capturing changes that the data Political Calculations uses to derive our complementary estimates of median household income is slower to register.

At least, that's our experience from seeing our estimates lag behind the upward surge the Motio's survey-based estimates recorded a year earlier. We'll see if that pattern continues with next month's data releases.

Analyst's Notes

As we mentioned, Political Calculations produces monthly median household income estimates using an alternate methodology that complements Motio Research's survey-based estimates. In July 2026, Political Calculations' initial estimate of median household income is $88,150. This estimate is $216 (or 0.25%) higher than our initial estimate of $87,934 for June 2026's median household income.

The following chart presents our estimates of U.S. median household income, both adjusted for inflation (blue) and not-adjusted for inflation (red) for each month from January 2000 through July 2026.

Median Household Income in the 21st Century: Nominal and Real Modeled Estimates, January 2000 to July 2026

Political Calculations' July 2026 estimate is $340 (0.4%) below Motio Research's estimate of $87,810 for the month. While we're still seeing our median household estimates rise, as opposed to the declines Motio Research has registered in their estimates during the last two months, we are seeing the rate of increase of our estimates slow. The change represents a negative change in momentum for median household income and is a cause for concern.

For the latest in our coverage of median household income in the United States, follow this link!

References

U.S. Bureau of Economic Analysis. Table 2.6. Personal Income and Its Disposition, Monthly, Personal Income and Outlays, Not Seasonally Adjusted, Monthly, Middle of Month. Population. [Online Database (via Federal Reserve Economic Data)]. Last Updated: 28 August 2026. Accessed: 28 August 2026.

U.S. Bureau of Economic Analysis. Table 2.6. Personal Income and Its Disposition, Monthly, Personal Income and Outlays, Not Seasonally Adjusted, Monthly, Middle of Month. Compensation of Employees, Received: Wage and Salary Disbursements. [Online Database (via Federal Reserve Economic Data)]. Last Updated: 28 August 2026. Accessed: 28 August 2026.

Image credit: U.S. Census Bureau. We modified the public domain image to make it more generally applicable beyond reporting the median household income from 2022.

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31 August 2026
An editorial cartoon of the new Federal Reserve chief pointing to a PowerPoint slide that shows a train labeled 'RATE HIKES' heading toward a Wall Street bull tied to railroad tracks by a villain holding a sign that says 'INFLATION ABOVE TARGET'. Make the Fed chief look like Kevin Warsh.. Image generated with Microsoft Copilot Designer.

The S&P 500 (Index: SPX) closed the trading week ending Friday, 28 August 2026 at 7,711.76, up 0.4% from where it closed out the preceding week.

The biggest market moving event of the week came on Friday, as the new chair of the Federal Reserve spoke at the Fed's annual retreat in Jackson Hole, Wyoming. Warsh had one message he wanted to deliver, which was the Federal Reserve would act to hike interest rates while inflation in the U.S. exceeded the Fed's target for it.

That message affected investor outlook for rate hikes. The CME Group's FedWatch Tool moved up the timing of when it expects the Fed will hike the Federal Funds Rate since the previous edition of the S&P 500 chaos series. It now projects the Fed will hike this base interest rate by a quarter percent on 16 September (2026-Q3), three months sooner than anticipated a week earlier.

The FedWatch Tool now also gives a better than 50% chance the Fed will follow up with another quarter point rate hike after its 9 December (2026-Q4) meeting.

Looking further forward, having the two rate hikes in 2026 drops the likelihood of any additional rate hikes in 2027 from the FedWatch Tool's outlook. The latest update of the dividend futures chart shows investors maintained their forward-looking focus on the upcoming future quarter of 2027-Q1, however if just given the week's news, we think it would be very likely that investors are shifting their forward-looking attention to the nearer term future of 2026-Q4.

Alternative Futures - S&P 500 - 2026Q3 - Standard Model (m=-2.0 from 28 Apr 2025) - Snapshot on 28 Aug 2026

For the near term future trajectory of the S&P 500, that Lévy flight event would be accompanied by a relatively modest change in stock prices, assuming no other new information arrives to prompt investors to shift their investment horizon back out to a more distant future quarter. Which if it were significant enough, would be accompanied by a more significant upward movement in stock prices according to the dividend futures-based model's projections.

Such a move could be driven by something like the unexpected after-the-closing-bell news of the Trump administration's deal with Venezuela to secure control of more than 65 billion barrels of oil, for example. We'll be covering the impact of that news in next week's edition.

There's a lot that hinges on the random onset of new information that affects investor expectations for the future. Speaking of which, here's an example of what that kind of information looked like during the past week.

Monday, 24 August 2026
Tuesday, 25 August 2026
Wednesday, 26 August 2026
Thursday, 27 August 2026
Friday, 28 August 2026

The Atlanta Fed's GDPNow tool projects +4.6% real GDP growth for the U.S. economy in 2026-Q3, rebounding from the +4.0% annualized growth it forecast a week earlier.

Image credit: Microsoft Copilot Designer. Prompt: "An editorial cartoon of the new Federal Reserve chief pointing to a PowerPoint slide that shows a train labeled 'RATE HIKES' heading toward a Wall Street bull tied to railroad tracks by a villain holding a sign that says 'INFLATION ABOVE TARGET'." We had to add a follow on prompt to "make the Fed chief look like Kevin Warsh" because the AI image generator is still defaulting to a caricature of Jerome Powell.

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About Political Calculations

Welcome to the blogosphere's toolchest! Here, unlike other blogs dedicated to analyzing current events, we create easy-to-use, simple tools to do the math related to them so you can get in on the action too! If you would like to learn more about these tools, or if you would like to contribute ideas to develop for this blog, please e-mail us at:

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