The report is available here: https://t.co/mrvWz1IzIe
1/OK, data mystery time.
This New York Times feature shows China with a Gini Index of less than 30, which would make it more equal than Canada, France, or the Netherlands. https://t.co/g3Sv6DZTDE
That's weird. Income inequality in China is legendary.
Let's check this number.
The report is available here: https://t.co/mrvWz1IzIe
The graph cites the World Development Indicators as its source for the income inequality data.

Here's the Gini index: https://t.co/MvylQzpX6A
It looks as if the latest estimate for China's Gini is 42.2.
That estimate is from 2012.
I can't find the <30 number anywhere. The only other estimate in the tables for China is from 2008, when it was estimated at 42.8.
Everyone except the "Fair Progress?" report, and the New York Times feature, seems to agree that the World Bank's most recent estimate of China's Gini is 42.2.

But the GDIM doesn't have income GINIs. So that can't be where these weird numbers were from (unless the data was mislabeled).
https://t.co/vmzz57YeFf
Wow. China has higher income mobility and lower inequality than the United States https://t.co/29BHdzbAll
— Tanay Jaipuria (@tanayj) November 19, 2018
(end...for now)
The Gini number the NYT used was from the 1980s. It was not labeled as such.
Hi Noah, Thanks for reaching out. The figure you refer to shows a Great Gatsby curve that plots income mobility against inequality for parents generation, i.e. inequality in 80s. Gini for China is around 0.3 at that time, and can be found in PovCalNet & @BrankoMilan All the Ginis
— Roy Van Der Weide (@rroyji) November 19, 2018
More from Noah Smith
Today's @bopinion post is about how poor countries started catching up to rich ones.
It looks like decolonization just took a few decades to start
Basic econ theory says poor countries should grow faster than rich ones.
But for much of the Industrial Revolution, the opposite happened.
https://t.co/JjjVtWzz5c
Why? Probably because the first countries to discover industrial technologies used them to conquer the others!
But then colonial empires went away. And yet still, for the next 30 years or so, poor countries fell further behind rich ones.
https://t.co/hilDvv0IQV
Why??
Possible reasons:
1. Bad institutions (dictators, communism, autarkic trade regimes)
2. Civil wars
3. Lack of education
But then, starting in the 80s (for China) and the 90s (for India and Indonesia), some of the biggest poor countries got their acts together and started to catch up!
Global inequality began to fall.
It looks like decolonization just took a few decades to start
Basic econ theory says poor countries should grow faster than rich ones.
But for much of the Industrial Revolution, the opposite happened.
https://t.co/JjjVtWzz5c
Why? Probably because the first countries to discover industrial technologies used them to conquer the others!
But then colonial empires went away. And yet still, for the next 30 years or so, poor countries fell further behind rich ones.
https://t.co/hilDvv0IQV
Why??
Possible reasons:
1. Bad institutions (dictators, communism, autarkic trade regimes)
2. Civil wars
3. Lack of education
But then, starting in the 80s (for China) and the 90s (for India and Indonesia), some of the biggest poor countries got their acts together and started to catch up!

Global inequality began to fall.

1/OK, so. Let's talk about Left-NIMBYism.
We all know about Right-NIMBYs, rabidly protecting their white-flight suburbs from Those People. And there are plenty of liberal NIMBYs too.
But NIMBYs of the Left are also a force to be reckoned
2/Left-NIMBYs have developed a canon of interlocking, mutually reinforcing beliefs about housing and urbanism.
These beliefs are mostly false, but they form a powerful "canon" that quickly ossifies into a hardened worldview.
It looks something like this:
3/Fortunately, Nathan J. Robinson of Current Affairs has written an article that perfectly encapsulates the Left-NIMBY worldview (and quotes me in it!).
So this is a teachable
4/Robinson selectively quotes a Bloomberg article of mine (https://t.co/iamRrW6oei).
Look at the part he quoted, vs. what I actually wrote!
Pretty different, eh? 😉
5/In fact, as I wrote in the article that Robinson failed to read more than one line of, it's theoretically possible that Left-NIMBYs COULD be right that allowing market-rate housing drives up local rents.
I take that possibility very seriously, as do YIMBYs.
We all know about Right-NIMBYs, rabidly protecting their white-flight suburbs from Those People. And there are plenty of liberal NIMBYs too.
But NIMBYs of the Left are also a force to be reckoned
2/Left-NIMBYs have developed a canon of interlocking, mutually reinforcing beliefs about housing and urbanism.
These beliefs are mostly false, but they form a powerful "canon" that quickly ossifies into a hardened worldview.
It looks something like this:

3/Fortunately, Nathan J. Robinson of Current Affairs has written an article that perfectly encapsulates the Left-NIMBY worldview (and quotes me in it!).
So this is a teachable
4/Robinson selectively quotes a Bloomberg article of mine (https://t.co/iamRrW6oei).
Look at the part he quoted, vs. what I actually wrote!
Pretty different, eh? 😉

5/In fact, as I wrote in the article that Robinson failed to read more than one line of, it's theoretically possible that Left-NIMBYs COULD be right that allowing market-rate housing drives up local rents.
I take that possibility very seriously, as do YIMBYs.
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This is a pretty valiant attempt to defend the "Feminist Glaciology" article, which says conventional wisdom is wrong, and this is a solid piece of scholarship. I'll beg to differ, because I think Jeffery, here, is confusing scholarship with "saying things that seem right".
The article is, at heart, deeply weird, even essentialist. Here, for example, is the claim that proposing climate engineering is a "man" thing. Also a "man" thing: attempting to get distance from a topic, approaching it in a disinterested fashion.
Also a "man" thing—physical courage. (I guess, not quite: physical courage "co-constitutes" masculinist glaciology along with nationalism and colonialism.)
There's criticism of a New York Times article that talks about glaciology adventures, which makes a similar point.
At the heart of this chunk is the claim that glaciology excludes women because of a narrative of scientific objectivity and physical adventure. This is a strong claim! It's not enough to say, hey, sure, sounds good. Is it true?
Imagine for a moment the most obscurantist, jargon-filled, po-mo article the politically correct academy might produce. Pure SJW nonsense. Got it? Chances are you're imagining something like the infamous "Feminist Glaciology" article from a few years back.https://t.co/NRaWNREBvR pic.twitter.com/qtSFBYY80S
— Jeffrey Sachs (@JeffreyASachs) October 13, 2018
The article is, at heart, deeply weird, even essentialist. Here, for example, is the claim that proposing climate engineering is a "man" thing. Also a "man" thing: attempting to get distance from a topic, approaching it in a disinterested fashion.

Also a "man" thing—physical courage. (I guess, not quite: physical courage "co-constitutes" masculinist glaciology along with nationalism and colonialism.)

There's criticism of a New York Times article that talks about glaciology adventures, which makes a similar point.

At the heart of this chunk is the claim that glaciology excludes women because of a narrative of scientific objectivity and physical adventure. This is a strong claim! It's not enough to say, hey, sure, sounds good. Is it true?
Sandbank Danger, A Thread
Controversy Has Been Caused By The Digging Of A Narrow Channel By A Resort On A Sandbank Near K. Hinmafushi.
Hinmafushi Council President Shan Ibrahim Stated To Sun That The Resort, Which Dug The Trench Creating A River On The Sandbank, Did Not Have Ownership Over The Sandbank.
Officials From The Island Of Hinmafushi Had Traveled To The Sandbank To Stop The Process Of Digging The Trench When They Became Aware Of It, Said Shan.
Officials Were Now Redepositing The Sand Removed From The Sandbank.

Controversy Has Been Caused By The Digging Of A Narrow Channel By A Resort On A Sandbank Near K. Hinmafushi.

Hinmafushi Council President Shan Ibrahim Stated To Sun That The Resort, Which Dug The Trench Creating A River On The Sandbank, Did Not Have Ownership Over The Sandbank.
Officials From The Island Of Hinmafushi Had Traveled To The Sandbank To Stop The Process Of Digging The Trench When They Became Aware Of It, Said Shan.
Officials Were Now Redepositing The Sand Removed From The Sandbank.
— Ahmed Aznil (@AhmedAznil) January 21, 2021
A brief analysis and comparison of the CSS for Twitter's PWA vs Twitter's legacy desktop website. The difference is dramatic and I'll touch on some reasons why.
Legacy site *downloads* ~630 KB CSS per theme and writing direction.
6,769 rules
9,252 selectors
16.7k declarations
3,370 unique declarations
44 media queries
36 unique colors
50 unique background colors
46 unique font sizes
39 unique z-indices
https://t.co/qyl4Bt1i5x
PWA *incrementally generates* ~30 KB CSS that handles all themes and writing directions.
735 rules
740 selectors
757 declarations
730 unique declarations
0 media queries
11 unique colors
32 unique background colors
15 unique font sizes
7 unique z-indices
https://t.co/w7oNG5KUkJ
The legacy site's CSS is what happens when hundreds of people directly write CSS over many years. Specificity wars, redundancy, a house of cards that can't be fixed. The result is extremely inefficient and error-prone styling that punishes users and developers.
The PWA's CSS is generated on-demand by a JS framework that manages styles and outputs "atomic CSS". The framework can enforce strict constraints and perform optimisations, which is why the CSS is so much smaller and safer. Style conflicts and unbounded CSS growth are avoided.
Legacy site *downloads* ~630 KB CSS per theme and writing direction.
6,769 rules
9,252 selectors
16.7k declarations
3,370 unique declarations
44 media queries
36 unique colors
50 unique background colors
46 unique font sizes
39 unique z-indices
https://t.co/qyl4Bt1i5x

PWA *incrementally generates* ~30 KB CSS that handles all themes and writing directions.
735 rules
740 selectors
757 declarations
730 unique declarations
0 media queries
11 unique colors
32 unique background colors
15 unique font sizes
7 unique z-indices
https://t.co/w7oNG5KUkJ

The legacy site's CSS is what happens when hundreds of people directly write CSS over many years. Specificity wars, redundancy, a house of cards that can't be fixed. The result is extremely inefficient and error-prone styling that punishes users and developers.
The PWA's CSS is generated on-demand by a JS framework that manages styles and outputs "atomic CSS". The framework can enforce strict constraints and perform optimisations, which is why the CSS is so much smaller and safer. Style conflicts and unbounded CSS growth are avoided.