• All primates live in groups and "an isolated individual will repeatedly pull a lever with no reward other than the glimpse of another monkey." (Richard Layard)
• Medieval cities usually had about 20,000 people, divided into four quarters, with a church in the center, each quarter having its own shops and schools, but everything within easy walking distance. (Jeremy Rifkin, The European Dream)
• In 1900 the state of Iowa had 1300 local opera houses. "Thousands of tenors earned adequate, if modest, livings performing before live audiences." (Robert Frank, Luxury Fever)
• The Gini coefficient was developed by economists to measure inequality. US is .40, China is .45, Japan is .25.

LINK | 6:32 AM | TB

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