Whyvert Profile picture
Feb 20, 2023 7 tweets 3 min read Read on X
The Great Decarceration.

Most people are unaware that incarceration rates have fallen a lot in recent years.

The black incarceration rate fell by 35% in 2006-2018. Image
Then in 2020 imprisonment suddenly fell more

(the year of pandemic and BLM).

Dec 31 2019: 2,086,000 incarcerated
Dec 31 2020: 1,691,600 incarcerated

= nearly 400,000 (or 20%) fewer prisoners in one year. Image
Stage 1 of The Great Decarceation 2010-19. Rate drops gradually from 960 to 810.

Stage 2 of The Great Decarceration 2020. Rate drops suddenly 810 to 660 in one year Dec 2019-Dec 2020.

BJS hasn't released numbers for 2021 yet. Image
Source: Bureau of Justice Statistic, Correctional Populations in the United States, 2020 – Statistical Tables (March 2022)

(This does not disaggregate by race.)

bjs.ojp.gov/content/pub/pd… Image
Meanwhile, a recent survey found that most people think that incarceration rates have increased, not decreased dramatically.

The Great Decarceration should be more widely known. It might help explain the increase in crime. Image
Peak incarceration rate was 1,000 per 100,000 in 2006.
At end of 2020: 660 per 100,000.
Probably even less now.
Black and Hispanic incarceration rates have fallen more than white.
Probably because urban counties are reluctant to send people to prison, while rural counties are still tough on crime.

NYT: Small Indiana County Sends More to Prison than San Francisco
nytimes.com/2016/09/02/ups… Image

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More from @whyvert

Dec 13
New study of national differences in groupishness: prosocial feelings only to your group (often kin) vs prosocial feelings to all (the green countries).

Treat group members better than non-members vs treating all the same.

The same map as corruption, cheating, etc. Image
This study uses the World Values Survey to look at three facets of groupishness (conformity, discrimination, exclusion). Image
The main predictors of low groupishness were (a) the cool water index (i.e. the climate of NW Europe) and (b) the Western family pattern (i.e. not living with extended kin, no cousin marriage, no polygamy, no arranged marriage).
Open access: psycnet.apa.org/fulltext/2027-…Image
Read 6 tweets
Sep 10
Article on decisions that led to the Boriswave of migration in the UK.

1. Boris Johnson. Wanted to give subsidies to universities (more student visas) and low-wage employers (cheap labor).

Outright gifts to special interests. Image
2. Previously, the Home Office's job had been to counterbalance other departments lobbying on behalf of their associated special interest groups.

Priti Patel failed to do this. Plus, officials failed to forecast the huge surge of migrants.
Clear failure. Image
Lesson: There are always concentrated interests (like universities and low-wage employers) who will lobby for subsidies in the form of migrants against the public good and against clear promises by the government.

They need to be resisted.
Read 5 tweets
Aug 23
It is AD 2025 and still ONLY Europeans, Anglo settlers, East Asians and Israelis have created rich countries (over $50k per capita).
Nobody else. Absolutely none.
(Oil states don't count.) Image
40 years ago the rich countries were NW Europe, Anglo settler, Japan.

In the last 40 years, ONLY about 10+ countries joined their ranks, all of them in Europe, East Asia, and Israel.

Again, oil doesn't count. Image
This is what's called convergence in econspeak.
If only 10+ countries have achieved it, then that's just 5-10% of countries. Not very many.
Read 5 tweets
Aug 10
The future prospects of classical liberalism:
Marian Tupy asks if mass immigration of illiberal peoples will mean the end of classical liberalism.
Tyler Cowen accepts this is a problem and says he doesn't know what to do about it.
How about ending mass immigration? Image
Marian Tupy and Tyler Cowen discuss classical liberalism
humanprogress.org/tyler-cowen-pr…
Note how evasive Cowen is:
"ponder what has gone wrong in other decisions" what other decisions?
"try to address those" address what, how?
"I don’t think you can do nothing." what can you do?
Read 4 tweets
Jun 14
New study: more evidence of very low human capital in Africa.

Basic numeracy mostly unchanged from 1950 to 1990 birth cohorts, despite much more schooling.

NB: basic numeracy is very, very basic = people know their own age, don't round it up or down (called "age heaping".) Image
Some exceptions. Basic numeracy in Ghana has trended upwards Image
In some countries, e.g. Niger, basic numeracy has trended downwards. Yes, numeracy is declining.

(Remember, knowing your own age is so basic that going to school is not necessary to learn how to do it. So, unschooled people can learn it.) Image
Read 8 tweets
Mar 13
It's false that Africa's states and borders are arbitrary. But it is a useful lie: blames Europeans for African political problems.

Colonies often followed precolonial states, as is visible below.

Because African rulers signed protectorate agreements. Image
The northern border of Nigeria follows the Sokoto Caliphate boundary.

Rwanda and Burundi were separate precolonial states.

Most borders in Africa are not straight lines. Those that are straight are mostly in deserts.
Source:
African Borders: Neither Random Nor Decided at the Berlin Conference

Read 4 tweets

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