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May 28, 2024 26 tweets 9 min read Read on X
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?🧵 Image
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). Image
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. Image
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. Image
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. Image
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. Image
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. Image
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. Image
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 Image
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. Image
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. Image
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. Image
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! Image
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. Image
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 Image
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. Image
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? Image
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?Image
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!Image
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.Image
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. Image
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. Image
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. Image
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. Image
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/…

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More from @cremieuxrecueil

Dec 22
The Australian pension system is funded through mandatory contributions into private retirement accounts

During the COVID pandemic, the government allowed people to pull up to $20,000 from those accounts decades early

What happened?

Firstly, uneducated people pulled the most: Image
Australia did this because they needed fiscal stimulus.

If they didn't allow people to make early withdrawals from their accounts—which normally remain inaccessible until retirement age—, they would have ended up in a very bad position.

But people did withdraw. Image
About a quarter of those aged >34 withdrew.

The most common amount to take out was $10,000 each time the possibility became available.

All said and done, that typically meant pulling down 51% of the total balance. That also meant foregoing $120,000 on average by retirement! Image
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Dec 21
The biggest argument against using GLP-1s for weight loss is that they cause excess muscle loss.

But as it turns out... GLP-1s do not cause any more muscle loss than traditional weight loss methods!

Let's discuss🧵Image
The differences in weight loss in that chart showing data from different trials are not

1. Clinically significant—they're not large enough to matter physiologically

2. Statistically significant—each weight loss method is not distinguishable in current data

But that's lean mass
Lean mass includes water.

Unfortunately, if we use DXA scans to understand body composition, we include that with muscle.

But if we use MRIs, we can separate water and muscle! As it turns out, the UK Biobank has just the required data. Image
Read 13 tweets
Dec 7
Why do identical twins have such similar personalities?

Is it because they're reared together? Is it because people treat them alike due to their visual similarity?

Nope! Neither theory holds water. Image
Despite looking as similar as identical twins and being reared apart, look-alikes are not similar like identical twins are. In fact, they're no more similar than unrelated people.

This makes sense: they're only minimally more genetically similar than regular unrelated people.
The other thing is that twins reared apart and together have similarly similar personalities.

In fact, there might be a negative environmental effect going on, where twins reared together try to distinguish their personalities more!
Read 7 tweets
Dec 2
Society is cognitively stratified:

Smart people tend to earn higher educations and higher incomes, and to work in more prestigious occupations.

This holds for people from excellent family backgrounds (Utopian Sample) and comparing siblings from the same families! Image
This is true, meaningful, and the causal relationship runs strongly from IQ to SES, with little independent influence of SES. Just look at how similar the overall result and the within-family results are!

But also look at fertility in this table: quite the reverse! Image
Source: sciencedirect.com/science/articl…

And to learn more about this general phenomenon, see: cremieux.xyz/p/intelligence… (I've added this citation to this article!)
Read 5 tweets
Nov 25
After this article came out, several people responded, alleging that a cultural model made more sense.

Clark has a point-by-point response🧵

Let's start with the first thing: parent-child and sibling correlations in status measures are identical—hard to explain culturally! Image
The reason this is hard to explain has to do with the fact that kids objectively have more similar environments to one another than to their parents.

In fact, for a cultural theory to recapitulate regression to the mean across generations, these things would need to differ! Image
Another fact that speaks against a cultural explanation is that the length of contact between fathers and sons doesn't matter for how correlated they are in status.

We can see this by leveraging the ages parents die at relative to said sons. Image
Read 10 tweets
Nov 24
The idea:

The internet gives everyone access to unlimited information, learning tools, and the new digital economy, so One Laptop Per Child should have major benefits.

The reality:

Another study just failed to find effects on academic performance. Image
This is one of those findings that's so much more damning than it at first appears.

The reason being, laptop access genuinely provides people with more information than was available to any kid at any previous generation in history.

If access was the issue, this resolves it. Image
And yet, nothing happens

This implementation of the program was more limited than other ones that we've already seen evaluations for though. The laptops were not Windows-based and didn't have internet, so no games, but non-infinite info too

Still huge access improvement though
Read 4 tweets

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