In 1942, the U.S. government forcibly removed more than 110,000 ethnically Japanese people from their homes and sent them to internment camps in remote parts of the country.
People are resilient, but losing everything is hard.
How did victims' lives turn out?🧵
First, we need background.
Japanese citizens began arriving to the U.S. in the latter part of the 19th century.
The scale of migration was substantial. By 1942, 40% of Hawaii was Japanese (Hawaii wasn't a state until 1959).
This influx of immigrants quickly became a political problem.
1886-1911, more than 400,000 Japanese set out to American lands. Citizens called for an end, resulting in the Gentleman's Agreement of 1907:
The U.S. wouldn't harass its Japanese and Japan would restrict emigration.
Immigration from Japan was cut down to virtually nothing from 1924 to 1952, creating a "missing generation" of people and distinguishing the first-generation "Issei" from their American-born "Nisei" children.
By 1940, Hawaii had 160,000 or so Japanese residents and the U.S. proper (recall, Hawaii was not a state) had an additional roughly 120,000.
As you can see, the largest portion of them were in California, in both Census and interment camp-derived figures.
On December 7th, 1941, Japan attacked Pearl Harbor, resulting in the deaths of 2,008 sailors, 109 Marines, 208 soldiers, and a further 68 civilians and ten others, along with the destruction of almost 200 aircraft, four battleships, and more.
With Japan's declaration of war, Issei transformed into enemy aliens on U.S. soil.
The first governmental response was for the FBI to start rounding up community leaders, resulting in the detention of 222 Italian, 1,221 German, and 1,460 Issei men that month.
The Ni'ihau Incident that happened after the bombing of Pearl Harbor also started to cement into American's minds the problem of enemy aliens.
Shigenori Nishikaichi crash landed his Zero after the attack and two Japanese island residents agreed to help him.
The Haradas (an Issei couple) and Ishimatsu Shintani helped Shigenori get his equipment + papers + torch his plane while kidnapping three native Hawaiians
The Hawaiians fought back. They killed Nishikaichi, Yoshio Harada killed himself, and Shintani and Yoshio's wife were caught
Around that time, FDR and Attorney General Biddle made statements calling for Americans to respect the rights of minorities including enemy aliens.
But shortly after that on February 19, FDR signed Executive Order 9066, allowing the military to set up exclusion zones.
The EO didn't specify anything for Japanese Americans, but it didn't have to, because Japan was busy frightening American civilians and military personnel.
On February 23rd, Japan bombed an oil field near Santa Barbara.
From November 1944 to April 1945, the Japanese had been launching Fu-Go balloon bombs that ended up dropping incendiary munitions in California and fourteen other states.
The Japanese also attacked a baker's dozen U.S. ships off the California coast.
Americans were so afraid of a Japanese invasion that they inflicted damage on themselves in the "Battle of Los Angeles."
The fear was rightful: The Japanese had subs 20 miles from California on December 24, 1941 and California only had sixteen modern airplanes protecting it!
Leveraging the powers granted by the EO, the military split the West Coast into two military areas and began distributing signs encouraging Japanese people to go East.
The voluntary migration scheme failed and the War Relocation Authority was set up to administer ten camps scattered across the U.S., for 110,000 Japanese Americans living on the West Coast
These relocated people had to get out quickly, selling possessions at "fire sale" prices
It's from this background that the analysis begins:
Arellano-Bover used Census, Japanese-American Research Project, and War Relocation Authority data to identify interned Japanese Americans so data on their socioeconomic outcomes could be put to use.
If we look at home ownership after the war, we see that the interned Japanese were definitely negatively impacted:
In the period 1946-52, they had significantly lower homeownership rates than Japanese Americans who weren't interned.
But look at 1953 to the '60s. Recovery?
Homeownership is about an asset. If we look at income data, we actually see that the Japanese who would go on to be interned had lower incomes than the non-interned Japanese in 1940, and equal incomes by 1950-60.
So the internment... raised incomes?
The answer to this seems to be "Yes."
Not only did the Japanese who were interned recover, they caught up despite starting further behind the Japanese who weren't interned.
This result is actually very robust!
So we have to ask Why?
Let's check attitudes towards work.
Bupkes. The interned and non-interned Japanese don't differ in work attitudes, so they couldn't get ahead that way.
What about attachment to Japan and Japanese culture?
Sansei (third-generation Japanese) were just as likely to have Japanese-speaking grandparents and citizenship/Americanness-wise, if anything, the interned were a bit less American.
This probably isn't it either.
Here's the meat:
In 1940, Japanese on the West Coast were disproportionately likely to be farmers and unskilled laborers, whereas the Japanese who migrated East and were thus less likely to be interned worked more often in skilled occupations.
This migration-related occupational stratification must not have been very selective by ability, because the interned/non-interned converged.
They also converged, in part, because the interned used the experience to move and change jobs.
The camps had more socioeconomic diversity than the places internees came from, so they were exposed to a diversity of opportunities and their family ties binding them to certain occupations were broken.
There were frictions the camps help them to overcome!
It was common to hear stories about internees entering poor and vowing to make it big when they got out, like this pictured one.
And that's what they did: interned Japanese Americans overcame the experience and wound up, miraculously, better off for it.
If you're interested in learning more about this amazing example of human resilience in the face of discriminatory adversity, go read the paper, here: cambridge.org/core/journals/…
• • •
Missing some Tweet in this thread? You can try to
force a refresh
World War I devastated Britain and likely slowed down its technological progress🧵
The reason being, the youth are the engine of innovation.
Areas that saw more deaths saw larger declines in patenting in the years following the war.
To figure out the innovation effects of losing a large portion of a generation's young men who were just coming into the primes of their lives, the authors needed four pieces of data.
The first were the numbers and pre-war locations of soldiers who died.
The next components were the numbers and locations of patent filings.
If you look at both graphs, you see obvious total population effects. So, areas must be normalized.
You know how most books on Amazon are AI slop now? If you didn't, look at the publication numbers.
Compare those to the proportion Pangram flags as AI-generated. It's fully aligned with the implied numbers based on the rise over 2022 publication levels!
Similarly, the rise of pro se litigants has come with a rise in case filings detected as being AI-generated, and with virtually zero false-positives before AI was around.
Pierre Guillaume Frédéric le Play argued that France's early fertility decline was driven by its inheritance reforms, where estates had to be split up equally to all of the kids, including the girls.
There's likely something to this!🧵
For reference, the French Revolution ushered in a number of egalitarian laws.
A major example of these had to do with inheritance, and in particular with partibility.
In some areas of France, there was partible inheritance, and in others, it was impartible.
Partible inheritance refers to inheritance spread among all of a person's heirs, sometimes including girls, sometimes not.
Impartible inheritance on the other hands refers to the situation where the head of an estate can nominate a particular heir to get all or a select portion.
In terms of their employment, religion, and sex, people who joined the Nazi party started off incredibly distinct from the people in their communities.
It's only near the end of WWII when they started resembling everyday Germans.
Early on, a lot of this dissimilarity is due to hysteresis.
Even as the party was growing, people were selectively recruited because they were often recruited by their out-of-place friends, and they were themselves out-of-place.
It took huge growth to break that.
And you can see the decline of fervor based on the decline of Nazi imagery in people's portraits.
And while this is observed by-and-large, it's not observed among the SS, who had a consistently higher rate of symbolic fanaticism.
I simulated 100,000 people to show how often people are "thrice-exceptional": Smart, stable, and exceptionally hard-working.
I've highlighted these people in red in this chart:
If you reorient the chart to a bird's eye view, it looks like this:
In short, there are not many people who are thrice-exceptional, in the sense of being at least +2 standard deviations in conscientiousness, emotional stability (i.e., inverse neuroticism), and intelligence.
To replicate this, use 42 as the seed and assume linearity and normality
The decline of trust is something worth caring about, and reversing it is something worth doing.
We should not have to live constantly wondering if we're being lied to or scammed. Trust should be possible again.
I don't know how we go about regaining trust and promoting trustworthiness in society.
It feels like there's an immense level of toleration of untrustworthy behavior from everyone: scams are openly funded; academics congratulate their fraudster peers; all content is now slop.
What China's doing—corruption crackdowns and arresting fraudsters—seems laudable, and I think the U.S. and other Western nations should follow suit.
Fraud leads to so many lives being lost and so much progress being halted or delayed.