Gini coefficient
A measure of income inequality, which has significantly increased in the United States, indicating a highly unequal society despite increased college education rates.
Videos Mentioning Gini coefficient

Sebastian Junger — Seeking Freedom and Reordering Your Place in the World | The Tim Ferriss Show
Tim Ferriss
A number developed by an Italian economist in the early 1900s, ranging from 0 to 1, that measures the income gap between rich and poor within a society; higher numbers indicate greater inequality.

The State of the World: A Conversation with Dambisa Moyo (Episode #257)
Sam Harris
A measure of inequality where both the US and China have a similar coefficient of around 0.42, despite different economic and political systems.

MIT Open Learning Salon: Closing the Opportunity Gap from Language to Reading
MIT Open Learning
An objective measure of income inequality within a society, used to compare the US to other nations, highlighting the US's high level of inequality.

Secret History #7: Death by Meritocracy
Predictive History
A measure of income inequality, which has significantly increased in the United States, indicating a highly unequal society despite increased college education rates.

E27: The Great Inflation Debate, Amazon gets spicy on Twitter, rethinking supply chains & more
All-In Podcast
A measure of inequality discussed in the context of inflation and economic policy, with limitations noted.