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[TOTM: The following is part of a digital symposium by TOTM guests and authors on Antitrust’s Uncertain Future: Visions of Competition in the New Regulatory Landscape. Information on the authors and the entire series of posts is available here.]

When I was a kid, I trailed behind my mother in the grocery store with a notepad and a pencil adding up the cost of each item she added to our cart. This was partly my mother’s attempt to keep my math skills sharp, but it was also a necessity. As a low-income family, there was no slack in the budget for superfluous spending. The Hostess cupcakes I longed for were a luxury item that only appeared in our cart if there was an unexpected windfall. If the antitrust populists who castigate all forms of market power succeed in their crusade to radically deconcentrate the economy, life will be much harder for low-income families like the one I grew up in.

Antitrust populists like Biden White House official Tim Wu and author Matt Stoller decry the political influence of large firms. But instead of advocating for policies that tackle this political influence directly, they seek reforms to antitrust enforcement that aim to limit the economic advantages of these firms, believing that will translate into political enfeeblement. The economic advantages arising from scale benefit consumers, particularly low-income consumers, often at the expense of smaller economic rivals. But because the protection of small businesses is so paramount to their worldview, antitrust populists blithely ignore the harm that advancing their objectives would cause to low-income families.

This desire to protect small businesses, without acknowledging the economic consequences for low-income families, is plainly obvious in calls for reinvigorated Robinson-Patman Act enforcement (a law from the 1930s for which independent businesses advocated to limit the rise of chain stores) and in plans to revise the antitrust enforcement agencies’ merger guidelines. The U.S. Justice Department (DOJ) and the Federal Trade Commission (FTC) recently held a series of listening sessions to demonstrate the need for new guidelines. During the listening session on food and agriculture, independent grocer Anthony Pena described the difficulty he has competing with larger competitors like Walmart. He stated that:

Just months ago, I was buying a 59-ounce orange juice just north of $4 a unit, where we couldn’t get the supplier to sell it to us … Meanwhile, I go to the bigger box like a Walmart or a club store. Not only do they have it fully stocked, but they have it about half the price that I would buy it for at cost.

Half the price. Anthony Pena is complaining that competitors such as Walmart are selling the same product at half the price. To protect independent grocers like Anthony Pena, antitrust populists would have consumers, including low-income families, pay twice as much for groceries.

Walmart is an important food retailer for low-income families. Nearly a fifth of all spending through the Supplemental Nutrition Assistance Program (SNAP), the program formerly known as food stamps, takes place at Walmart. After housing and transportation, food is the largest expense for low-income families. The share of expenditures going toward food for low-income families (i.e., families in the lowest 20% of the income distribution) is 34% higher than for high-income families (i.e., families in the highest 20% of the income distribution). This means that higher grocery prices disproportionately burden low-income families.

In 2019, the U.S. Department of Agriculture (USDA) launched the SNAP Online Purchasing Pilot, which allows SNAP recipients to use their benefits at online food retailers. The pandemic led to an explosion in the number of SNAP recipients using their benefits online—increasing from just 35,000 households in March 2020 to nearly 770,000 households just three months later. While the pilot originally only included Walmart and Amazon, the number of eligible retailers has expanded rapidly. In order to make grocery delivery more accessible to low-income families, an important service during the pandemic, Amazon reduced its Prime membership fee (which helps pay for free delivery) by 50% for SNAP recipients.

The antitrust populists are not only targeting the advantages of large brick-and-mortar retailers, such as Walmart, but also of large online retailers like Amazon. Again, these advantages largely flow to consumers—particularly low-income ones.

The proposed American Innovation and Choice Online Act (AICOA), which was voted out of the Senate Judiciary Committee in February and may make an appearance on the Senate floor this summer, threatens those consumer benefits. AICOA would prohibit so-called “self-preferencing” by Amazon and other large technology platforms.

Should a ban on self-preferencing come to fruition, Amazon would not be able to prominently show its own products in any capacity—even when its products are a good match for a consumer’s search. In search results, Amazon will not be able to promote its private-label products, including Amazon Basics and 365 by Whole Foods, or products for which it is a first-party seller (i.e., a reseller of another company’s product). Amazon may also have to downgrade the ranking of popular products it sells, making them harder for consumers to find. Forcing Amazon to present offers that do not correspond to products consumers want to buy or are not a good value inflicts harm on all consumers but is particularly problematic for low-income consumers. All else equal, most consumers, especially low-income ones, obviously prefer cheaper products. It is important not to take that choice away from them.

Consider the case of orange juice, the product causing so much consternation for Mr. Pena. In a recent search on Amazon for a 59-ounce orange juice, as seen in the image below, the first four “organic” search results are SNAP-eligible, first-party, or private-label products sold by Amazon and ranging in price from $3.55 to $3.79. The next two results are from third-party sellers offering two 59-ounce bottles of orange juice at $38.99 and $84.54—more than five times the unit price offered by Amazon. By prohibiting self-preferencing, Amazon would be forced to promote products to consumers that are significantly more expensive and that are not SNAP-eligible. This increases costs directly for consumers who purchase more expensive products when cheaper alternatives are available but not presented. But it also increases costs indirectly by forcing consumers to search longer for better prices and SNAP-eligible products or by discouraging them from considering timesaving, online shopping altogether. Low-income families are least able to afford these increased costs.

The upshot is that antitrust populists are choosing to support (often well-off) small-business owners at the expense of vulnerable working people. Congress should not allow them to put the squeeze on low-income families. These families are already suffering due to record-high inflation—particularly for items that constitute the largest share of their expenditures, such as transportation and food. Proposed antitrust reforms such as AICOA and reinvigorated Robinson-Patman Act enforcement will only make it harder for low-income families to make ends meet.

A recent NBER working paper by Gutiérrez & Philippon has attracted attention from observers who see oligopoly everywhere and activists who want governments to more actively “manage” competition. The analysis in the paper is fundamentally flawed and should not be relied upon by policymakers, regulators, or anyone else.

As noted in my earlier post, Gutiérrez & Philippon attempt to craft a causal linkage between differences in U.S. and EU antitrust enforcement and product market regulation to differences in market concentration and corporate profits. Their paper’s abstract leads with a bold assertion:

Until the 1990’s, US markets were more competitive than European markets. Today, European markets have lower concentration, lower excess profits, and lower regulatory barriers to entry.

This post focuses on Gutiérrez & Philippon’s claim that EU markets have lower “excess profits.” This is perhaps the most outrageous claim in the paper. If anyone bothers to read the full paper, they’ll see that claims that EU firms have lower excess profits is simply not supported by the paper itself. Aside from a passing mention of someone else’s work in a footnote, the only mention of “excess profits” is in the paper’s headline-grabbing abstract.

What’s even more outrageous is the authors don’t define (or even describe) what they mean by excess profits.

These two factors alone should be enough to toss aside the paper’s assertion about “excess” profits. But, there’s more.

Gutiérrez & Philippon define profit to be gross operating surplus and mixed income (known as “GOPS” in the OECD’s STAN Industrial Analysis dataset). GOPS is not the same thing as gross margin or gross profit as used in business and finance (for example GOPS subtracts wages, but gross margin does not). The EU defines GOPS as (emphasis added):

Operating surplus is the surplus (or deficit) on production activities before account has been taken of the interest, rents or charges paid or received for the use of assets. Mixed income is the remuneration for the work carried out by the owner (or by members of his family) of an unincorporated enterprise. This is referred to as ‘mixed income’ since it cannot be distinguished from the entrepreneurial profit of the owner.

Here’s Figure 1 from Gutiérrez & Philippon plotting GOPS as a share of gross output.


Look at the huge jump in gross operating surplus for U.S. firms!

Now, look at the scale of the y-axis. Not such a big jump after all.

Over 23 years, from 1992 to 2015, the gross operating surplus rate for U.S. firms grew by 2.5 percentage points. In the EU, the rate increased by about one percentage point.

Using the STAN dataset, I plotted the gross operating surplus rate for each EU country (blue dots) and the U.S. (red dots), along with a time trend. Three takeaways:

  1. There’s not much of a difference between the U.S. and the EU average—they both hover around a gross operating surplus rate of about 19.5 percent; and
  2. There’s a huge variation in gross operating surplus rate across EU countries.
  3. Yes, gross operating surplus is trending slightly upward in the U.S. and slightly downward for the EU average, but there doesn’t appear to be a huge difference in the slope of the trendlines. In fact the slopes of the trendlines are not statistically significantly different from zero and are not statistically significantly different from each other.


The use of gross profits raises some serious questions. For example, the Stigler Center’s James Traina finds that, after accounting for selling, general, and administrative expenses (SG&A), mark-ups for publicly traded firms in the U.S. have not meaningfully increased since 1980.

The figure below plots net operating surplus (NOPS equals GOPS minus consumption of fixed capital)—which is not the same thing as net income for a business.

Same three takeaways:

  1. There’s not much of a difference between the U.S. and the EU average—they both hover around a net operating surplus rate of a little more than seven percent; and
  2. There’s a huge variation in net operating surplus rate across EU countries.
  3. The slope of the trendlines for net operating surplus in the U.S. and EU are not statistically significantly different from zero and are not statistically significantly different from each other.


It’s very possible that U.S. firms are achieving higher and growing “excess” profits relative to EU firms. It’s also very possible they’re not. Despite the bold assertions of Gutiérrez & Philippon, the information presented in their paper provides no useful information one way or the other.