Bjorn Lomborg Profile picture
Author of 'Best Things First', 'False Alarm', and 'Skeptical Environmentalist', President Copenhagen Consensus: smart solutions through economic prioritization

Sep 11, 2021, 7 tweets

Global inequality is lower today than last 140 years

Ineq increase hugely in 1800s bc industrialized world pulls away

Ineq decline as poor world (China, India) starts gaining

Gini: 0=no ineq, 1= total ineq

New, amazing data from @PikettyLeMonde & co
wid.world/document/longr…

Income development 1820-2020:

In China, per person income dropped from 82% of world average in 1820 down to 20% in 1980, before rising to 109% in 2020

In Indonesia, it dropped from 57% in 1820 to 16% in 1950, up to 68% in 2020

wid.world/document/longr…

What drives global inequality?

Blue line shows domestic inequality: high, but lower in 1950s-80s

Orange line shows inequality between nations: increase dramatically after rich world industrialization, decline after 1980 as poor world is gaining again

wid.world/document/longr…

Who gained the most in the last 40 years of growth:

Much of the world's poor
The very richest

The relative losers were the lower and middle-classes in rich and middle-income countries (jobs outsourced)

wid.world/document/longr…

Who gained in income over the last 200 years?

Relatively: the world's top 30% (the first to industrialize, OECD)

Absolute: everyone got to be much, much better off — even the worst saw their incomes >5x

wid.world/document/longr…

Definition of global inequality treats entire world as one:

Just like inequality in, say, the US places all US individuals from lowest to highest income

Global inequality places all citizens from every nation from lowest to highest income

(see: gabriel-zucman.eu/files/teaching…)

It is a great data paper collating an immense amount of data to help us get a clearer view on incomes over the past 200 years

Cudos to Chancel & Piketty

(but take their 1800s industrialization powered by exploitation of 3rd world with grains of salt)

wid.world/document/longr…

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