When Genius Failed

Myron Scholes was on top of the world in 1997, having won the Nobel Prize in economics that year for his work in financial economics, work that he had applied in the real world in a wildly successful hedge fund, Long Term Capital Management. But just one year later, LTCM was saved from collapse only by a last-minute bailout that wiped out his equity (along with that of the other partners of the fund) and cast doubt on the value of his academic work.

Roger Lowenstein told the story of LTCM in his 2001 book “When Genius Failed“. I finally got around to reading this classic of the genre this year, and I’d say it is still well worth picking up. The story is well-told, and the lessons are timeless-

  • Beware hubris
  • Beware leverage
  • Bigger positions are harder to get out of (especially once everyone knows you are in trouble)
  • In a crisis, all correlations go to one
  • Past results don’t necessarily predict future performance
  • Sometimes things happen that are very different from anything that happened in your backtest window.

The book came out in 2001 but it presages the 07 financial crisis well- not about mortgage derivatives specifically, but the dangers of derivatives, leverage, using derivatives to avoid regulations restricting leverage, and over-relying on mathematical models of risk based on past behavior. If Fed had let LTCM fail, could we have avoided the next crisis? Perhaps so, as their counterparties (most major Wall Street banks) who got burned would have been more careful about the leverage and derivatives used by themselves and their counterparties, and regulators may have taken stronger stances on the same issues.

Perhaps some more recent well-contained blowups foreshadow the next big crisis in the same way, like FTX or SVB?

Some more specific highlights about LTCM:

Continue reading

Now published: Human capital of the US deaf Population, 1850-1910

Myself and a student coauthor worked hard on our article that is now published in Social Science History. It’s the first modern statistical analysis of the historical deaf population. We bring an economic lens and statistical treatment to a topic that previously included much anecdotal evidence and case study. We hope that future authors can improve on our work in ways that meet and surpass the quantitative methods that we employed.

Our contributions include:

  • A human capital model of deafness that’s agnostic about its productivity implications and treats deaf individuals as if they made decisions rationally.
  • A better understanding of school attendance rates and the ages at which they attended.
  • Deaf children were much more likely to be neither in school nor employed earlier in US history.
  • The negative impact of state ‘school for the deaf’ availability on subsequent economic outcomes among deaf adults. We speculate that they attended schools due to the social benefits of access to community.
  • Deaf workers did not avoid occupations where their deafness would be incidentally detectable by trade partners, implying that animus discrimination was not systemically important for economic outcomes.
Continue reading

Trump’s National Sales Tax

Tariffs are going up to levels last seen in the 1930 Smoot-Hawley tariffs that helped kick off the Great Depression:

Tariffs are taxes- roughly, a national sales tax with an exemption for domestically-produced goods and services. I think the words make a difference here- “raising tariffs on countries who we run a trade deficit with” just sounds abstruse to most people, while “raising taxes on goods bought from firms in net-seller countries” sounds negative, but they are the same thing.

Of course, in this case the plan is to raise taxes to at least 10% on goods from all other countries even if they aren’t net-sellers, and raise taxes up to 49% on those that are. This is not a negotiating tactic. We know this from the math- the new tax formula uses net imports from a country rather than a country’s tariff rates, so a country could cut their tariffs on US goods to zero today and it wouldn’t necessarily reduce our “reciprocal” tariffs at all; at best it would reduce them to 10%. We also know it isn’t about negotiating because the administration says it isn’t. Their goal, obviously, is to reduce trade, not to free it.

They say they are doing this to bring manufacturing back to America and to promote national defense. But American manufacturers don’t seem happy. Even before the latest huge tax increase, trade war was their biggest concern:

The National Association of Manufacturers Q1 2025 Manufacturers’ Outlook Survey reveals growing concerns over trade uncertainties and increased raw material costs. Trade uncertainties surged to the top of manufacturers’ challenges, cited by 76.2% of respondents, jumping 20 percentage points from Q4 2024 and 40 percentage points from Q3 of last year.

The National Association of Manufacturers responded to the latest tax increase with a negative statement; so even the one major group that might have benefitted from tariffs is unhappy. Foreign producers and US consumers will of course be very unhappy. I think Trump is making a huge political blunder alongside the economic one- he got elected largely because Biden allowed inflation to get noticeably high, but now Trump is about to do the same thing.

I also see this as a huge national security blunder. For tariffs on China, I at least see their argument- we should take an economic hit today in order to become less reliant on our peer-competitor and potential adversary. But the tariffs on allies make no sense- they are hitting the very countries that are most valuable as economic and/or military partners in a conflict with China, like Canada, Mexico, Japan, South Korea, Vietnam, India, and Taiwan (!!!). One of our biggest advantages vs. China has been that we have many allies and they have few, and we appear to be throwing away this advantage for nothing.

What can you or I do about this? Stock up on durable goods before the price increases hit. Picking investment winners is always hard, but things this makes me consider are gold, stocks in foreign countries that trade little with the US, and companies whose stocks took a big hit today despite not actually being importers. Finally, we can try nudging Congress to do something. The Constitution gives the power to levy taxes to the legislative branch, but in the 20th century they voted to delegate some of this power to the executive. Any time they want, Congress could repeal these tariffs and take back the power to set rates. I have some hope they actually will- just yesterday the Senate voted to repeal some tariffs on Canada, and more votes are planned. The alternative is to risk a recession and a wipeout in the midterms:

Messy Disability Records in the Historical Censuses

The historical US Census roles of disability among free persons are a mess. Specifically for the 1850-1870 censuses, the census bureau was not professionalized and the pay was low (a permanent office wasn’t founded until 1902). So, the enumerators were temporary employees and weren’t experts of their art. To boot, their handwriting wasn’t always crystal clear. Second, training for disability enumeration was even less complete and enumerators did their best with whom they encountered and how they understood the instructions. Finally, the digitized data in IPUMS doesn’t perfectly match the census reports. What a mess.

Guilty by Association

Disabled people and their families often misreported their status out of embarrassment or shame. Given that enumerators had quotas to fill, they were generally not inclined to investigate claimed statuses strenuously. Furthermore, disabled people were humans and not angels. Sometimes they themselves didn’t want to be associated with other types of disabled people. In particular, the disability designation in question (13) on the 1850 census questionnaire asked  “Whether deaf and dumb, blind, insane, idiotic, pauper or convict”. Saying “yes” may put you in company that you don’t prefer to keep.

Summer censuses also sometimes missed deaf students who were traveling to or from a residential school.

Enumerator Discretion

The enumerator’s job was to write the disability that applied. What counts as deaf and dumb? That’s largely at the enumerator’s discretion. Some enumerators wrote ‘deaf’ even though that wasn’t an option. Was that shorthand for ‘Deaf and Dumb’? Or were they specifying that the person was deaf only and not dumb? We don’t know. But we do know that they didn’t follow the instructions. What if a person was both insane and blind? Then what should be written? “Blind/Insane” or “Blind and Insane” or “In-B” and any number of combinations were written. Some of them are easier to read than others.

Data Reading Errors

IPUMS is the major resource for using census data. The historical data was entered by foreign data-entry workers who didn’t always speak English. So, the records aren’t perfect. Some of the records are corroborated with Optical Character Recognition (OCR), but the historical script is sometimes hard to read. Finally, the fine folks at familysearch.org and Brigham Young University have used Church of Latter Day Saints (LDS) volunteers to proof data entries. Regardless, we know that the IPUMS data isn’t perfect and that the disability data is far from perfect. Usually, reports don’t dwell on it. They simply say that the data is incomplete.

The disability data is incomplete for a lot of reasons related to the respondent, the enumerator, the instructions, and the digital data creation. What a mess.

Podcast Recommendation: Acquired

For your upcoming summer road trips, even with a family, I recommend you check out the Acquired podcast. Each episode is the history (or partial history) of one business, told in a way that is entertaining and informative on many levels.

I was first introduced to the podcast when someone recommended the episode on Costco. It’s 3 hours long. I thought to myself “Really? I’m interested in Costco, but isn’t 3 hours a bit much?” But I had a long road trip, so I gave it a try. I was floored by how much I learned about Costco, the history of retail in the US, and the connections to other businesses. For example, Sam’s Club, which I thought was just kinda doing the same thing as Costco in different geographic areas, but no — Sam Walton copied Costco, as well as many other ideas from Sol Price (what a great name for a retailer!), the man behind the companies that would eventually become Costco today.

If you are at all interested in the history of business (especially mid-to-late Twentieth century businesses, though they do have one on Standard Oil), you will love this podcast. But I have found that the podcast is also great for children — well, at least if you have a roughly eleven-year-old boy. They will have many questions, so you may stop the podcast often, but that’s OK with me.

I think the reason some of the episodes appeal to children is because many of the stories focus on a single entrepreneur that started a business, and the hosts always spend a little bit of time on the childhood of those entrepreneurs. Often, they were entrepreneurial or innovative in some way as a child. For example, Warren Buffett in the first Berkshire Hathaway episode (there are 3 episodes on BH, totaling over 9 hours!), selling sticks of gum and cans of Coke door-to-door. Or Ingvar Kamprad (founder of IKEA, told in a 3-hour episode) selling matchboxes and fountain pens. Or the young Bill Gates being privileged enough in middle school to have access to computers, but also turning this into a business in high school (told in the first of two episodes on Microsoft, totaling once again over 9 hours).

As I mentioned in the above paragraph, if you thought that 3 hours on Costco was a lot, just wait until you listen to some of the others. You probably can’t imagine yourself listening to 9 hours on the history of a single company, much less your kids following along too. But I highly recommend that you give it a shot.

Optimal Protein Consumption in the 21st Century: A Model

I’ve discussed complete proteins before. I’ve talked about the ubiquity of protein, animal protein prices, vegetable protein prices, and a little but about protein hedonics. My coblogger Jeremy also recently posted about egg prices over the past century. Charting the cost of eggs is great for identifying egg affordability. But a major attraction of eggs is that they are a ‘complete protein’. So how much of that can we afford?

Here I’ll outline a model of the optimal protein consumption bundle. What does this mean? This means consuming the quantities of protein sources that satisfy the recommended daily intake (RDI) of the essential amino acids and doing so at the lowest possible expenditure. Clearly, this post includes a mix of both nutrition and economics.  Since a comprehensive evaluation that includes all possible foods would be a heavy lift, here I’ll just outline the method with a small application.

Consider a list of prices for 100 grams of Beef, Eggs, and Pork.* We can also consider a list that identifies the quantity that we purchase in terms of hundreds of grams. Therefore, the product of the two yields the total that we spend on our proteins.

Of course, not all proteins are identical. We need some characteristics by which to compare beef, eggs, and pork. Here, I’ll use the grams of essential amino acids in 100 grams of each protein source. Because there are different RDIs for each amino acid, I express each amino acid content as a proportion of the RDI (represented by the standard molecular letter).

Then, we can describe how much of the RDI of each amino acid that a person consumes by multiplying the amino acid contents by the quantities of proteins consumed.

Our goal is to find the minimum expenditure, B, by varying the quantities consumed, Q, such that the minimum of C is equal to one. If the minimum element of C is greater than one, then a person could consume less and spend less while still satisfying their essential amino acid RDI. If the minimum element is less than one, then they aren’t getting the minimum RDI.

How do we find such a thing? Well, not algebraically, that’s for sure. I’ll use some linear programming (which is kind of like magic, there’s no process to show here).

The solution results in consuming only 116.28 grams of Pork and spending $1.093 per day. The optimal amino acid consumption is also below. Clearly, prices change. So, if eggs or beef became cheaper relative to pork, then we’d get different answers.

In fact, we have the price of these protein sources going back almost every month to 1998. While pork is exceptionally nutritious, it hasn’t always been most cost effective. Below are the prices for 1998-2025. See how the optimal consumption bundle has changed over time – after the jump.

Continue reading

A Forgotten Data Goldmine: Foreign Commerce and Navigation Reports

Economists rely on trade data. The historical Foreign Commerce and Navigation of the United States reports detailed monthly figures on imports, exports, and re-exports. This dataset spans decades, providing a crucial resource for researchers studying price movements, consumption patterns, and the effects of war on global trade.

The U.S. Department of Commerce compiled these reports to track the nation’s commercial activity. The data cover a vast range of commodities, including coffee, sugar, wheat, cotton, wool, and petroleum. Officials recorded trade flows at a granular level, enabling economists to analyze seasonal fluctuations, wartime distortions, and postwar recoveries. Their inclusion of re-export figures allows for precise estimates of domestic consumption. Researchers who ignore re-exports risk overstating demand by treating imports as goods consumed rather than goods in transit.

Continue reading

Women Have Always Worked More Than Men: Hours of Work Since 1900

This chart shows the average number of hours worked in the US, by gender, for those in their prime working ages (25-54), from 1900 to 2023. It includes both paid market work and household production (which includes activities like cooking, cleaning, shopping, and taking care of children):

Most of the data (from 1900-2005) comes from a 2009 paper by Valerie Ramy and Neville Francis, which looks at lots of trends in work and leisure in the twentieth century. I extend the data past 2005 using an update from Ramey through 2012, and then attempting to replicate their methods using the CPS (for market work) and the BLS ATUS (for home production).

A few things to notice. First, there is no data for 2020, as the ATUS didn’t publish any tables due to incomplete data from the pandemic. And even if we had data, it would have been a huge outlier year.

More importantly, there is an obvious long-term trend of declining market work and rising household production for men, and the opposite for women. In 1900 women worked over 6 times as many hours in the household as they did in the market, but by 2023 they worked almost the exact same number of hours in each sector.

Male hours in market work declined by about 16 hours per week (using 10-year averages, as there is a slight business-cycle effect on hours), but the total number of hours they worked declined much more modestly, by about 3 hours per week (note: these numbers include all men, whether they are working or not). Women saw similar changes, but in the opposite direction, with total hours worked only falling by about 4 hours per week, even though hours working at home fell by almost 22 hours.

Americans do have more leisure time than in 1900, but not dramatically so: perhaps 3-4 hours per week. This is an improvement, but less of an improvement than you might suspect by looking at hours of market work alone.

Ramey and Francis do try to carefully distinguish between household production and leisure. For example, yardwork and changing diapers are household production, while gardening and playing with your children are leisure. For some respondents to surveys, they may feel differently about whether gardening is “really” work or not, and some may enjoy changing baby’s diapers, but in general their distinctions seem reasonable to me.

Finally, we can say pretty confidently with this data that women have almost always worked more hours than men — the one exception in the 20th century being WW2 — and the gender gap was about 4 hours per week in both the early 1900s and the most recent decade (though it did fluctuate in between).

Information Regarding Russia

2004: In September 2004, Ukrainian presidential candidate Viktor Yushchenko was poisoned while running against pro-Russian candidate Viktor Yanukovych. After a dinner meeting, Yushchenko fell severely ill and his face became dramatically disfigured with cysts and lesions (chloracne). Medical tests in Vienna confirmed extreme dioxin poisoning.
https://www.bbc.com/news/av/world-europe-43611547
The American liberal mind struggles to understand the difficulty of using elections under these conditions.

2018: “On March 4, 2018, British authorities say Russian agents poisoned Sergei Skripal—a former Russian military intelligence officer and U.K. double agent—and his daughter using a Novichok nerve agent…. With the immediate attack area isolated and the cleanup underway, the nation was shocked once again when two British nationals were poisoned by the same nerve agent nearly three months later in the neighboring town of Amesbury. One of the two, Dawn Sturgess, fell ill within 15 minutes of contact with the agent and died just over a week later. ” https://mwi.westpoint.edu/modern-day-nerve-agent-attack-military-lessons-salisbury/

If you get news from the internet and social media, be aware that some online participants are paid trolls from foreign governments.

Another pillar of this strategy involves botnets: swarms of fake, automated accounts created and controlled by Russian agents. These botnets hijack trending algorithms on social media platforms and thereby expose Western audiences to particular messages. They often share precisely worded posts to ensure that certain phrases—such as #WelcomeRefugees or #EndNetZero—trend in people’s news feeds. And they incessantly ‘like’ and repost content from pro-Kremlin influencers and trolls.

The aim here is twofold. First, it is an attempt to expand the reach of what would otherwise remain fringe opinions. They expose ever more people to Russian propaganda, and help create an illusion of popularity that serves to normalise pro-Kremlin talking points. But this is not merely intended to convert people into passionate Putinistas. The second goal is to promote the most inflammatory and divisive voices on either side of a given political issue. This helps spread the distrust and disillusionment that are so corrosive to liberal democratic society—and which have reached record levels on social media.

That is from https://quillette.com/2024/11/24/the-kremlins-bots-trolls-and-influencers-russia-disinformation/ , and if you would like a different news source then https://www.cnn.com/2024/10/30/europe/russian-disinformation-harris-walz-us-election-intl/index.html

Adam Smith and broadening horizons

Last week I had the honor of hosting Vernon Smith at Samford University and then being with him on his second day of the tour in Tuscaloosa, AL.

To introduce Vernon Smith’s new book about Adam Smith, I articulated a point that I had taken from reading Tyler Cowen’s GOAT book. Not all undergraduates have read Adam Smith, so I explained that Adam Smith was one of the first people to have a vision of a growing economy on a global scale. Afterward, I wondered if I had stated everything entirely correctly in my bold assertion. I went to consult with the source material via https://econgoat.ai/en/chat/gpt.

Joy: Does Tyler say that Adam Smith was one of the first people to imagine economic life on a globalized scale and how great the gains from trade could be?

EconGOAT GPT-4: Indeed, Tyler suggests that Adam Smith was one of the pioneering thinkers in envisioning economic life on a global scale and highlighting the immense gains from trade. In discussing Smith’s contributions, Tyler notes how Smith saw trade as a process by which nations could exchange their surplus or “superfluities” for goods they value more. While Smith didn’t quite articulate the theory of comparative advantage—later developed by Ricardo and Torrens—he was certainly heading in the right direction with his understanding of trade. This insight pointed towards a broader, more interconnected economic worldview that has since become central to economic theory (Chapter 8).

Tyler also gives Smith credit for recognizing issues with mercantilist views of trade, which often focused on stockpiling precious metals. Instead, Smith emphasized the expansion of consumption opportunities as the real benefit of trade, emphasizing its potential to enhance global prosperity. Smith’s multifaceted intellectual approach laid the groundwork for thinking about economies beyond just national borders, making him a key figure in the development of global economic thought.

Joy: When I think of a grand global vision prior to Smith, I think about religious leaders and military conquerors. Was Adam Smith the first to think of a grand global vision that fundamentally rests on individual freedom within a tolerant framework of laws and protections from harm?

EconGOAT GPT-4: Tyler acknowledges that Adam Smith played a pivotal role in developing the idea of economic globalization and the gains from trade. However, noting Smith as the absolute first might overlook other contributors. Before Smith, there were philosophers like the Scholastics and early mercantilists who considered economic ideas on a substantial, if not global, scale. The physiocrats, for example, were very much aware of how agriculture and trade could lead to prosperity for nations.

One could argue against Smith’s primacy by pointing out how people have always been aware of trade’s benefits, even if they didn’t articulate it quite as elegantly as Smith did. There’s historical evidence of trade routes as old as human civilization itself, such as the Silk Road or the trade networks of the Phoenicians. These early systems relied on a rudimentary understanding of economies of scale and specialization, even if they weren’t formalized.

Regarding your second point about religious leaders and conquerors, Smith’s vision indeed differs markedly. While others dreamt of unification through conquest or religious means, Smith’s framework empowered individuals to pursue their self-interest within a system of natural laws. This wasn’t just a vision of economic prosperity, but a moral and social vision as well. His “invisible hand” concept implies that individuals, left to their own devices within a safe legal framework, can contribute to the common good more efficiently than any central directive. This is highlighted in Chapter 8, where Tyler discusses Smith’s broader social and philosophical contributions. Smith’s ideas paved the way for modern market economies and significantly influence contemporary thought on economic freedom and globalization.

Joy: Would it be accurate to say that most people in Smith’s time had a very narrow view of the world, indeed hardly thinking beyond the borders of their own regions?

EconGOAT GPT-4: That’s a fair assessment. During Adam Smith’s time in the 18th century, most people indeed had a much narrower view of the world than we do today. Many individuals’ perspectives were limited to their immediate surroundings—villages, towns, or regions. The vastness of the globe, with its diverse cultures, economies, and possibilities for trade, wasn’t as accessible or imaginable to the everyday person as it is now.

Smith’s work in “The Wealth of Nations” was revolutionary in part because it broadened this horizon, not just for economists and policymakers but for anyone interested in economic activity. Smith’s ideas about the division of labor, specialization, and free markets opened up the concept of international trade as a means to prosperity beyond the local economy. His ability to foresee the potential for global interconnectedness in economies was ahead of his time.

I won’t excerpt our entire conversation. I eventually asked how to broaden one’s horizons.

EconGOAT GPT-4: While traveling Europe might seem like a grand adventure ripe for expanding one’s horizons (cue the “Eat, Pray, Love” montage), Adam Smith had reservations about the educational value of the “grand tour,” as it was then known. In Smith’s view, travel often led to “frivolous dissipation” rather than genuine intellectual or moral growth. Instead, he believed that real learning happened through competitive and commercial constraints—the kind you experience when you’re not just sightseeing but actively engaging with a community (Chapter 8).

That was when the bot made a genuinely funny joke about a silly modern book.