The Formula for a Richer World? Equality, Liberty, Justice

The world is rich and will become still richer. Quit worrying.

Not all of us are rich yet, of course. A billion or so people on the planet drag along on the equivalent of $3 a day or less. But as recently as 1800, almost everybody did.

The Great Enrichment began in 17th-century Holland. By the 18th century, it had moved to England, Scotland and the American colonies, and now it has spread to much of the rest of the world.

Economists and historians agree on its startling magnitude: By 2010, the average daily income in a wide range of countries, including Japan, the United States, Botswana and Brazil, had soared 1,000 to 3,000 percent over the levels of 1800. People moved from tents and mud huts to split-levels and city condominiums, from waterborne diseases to 80-year life spans, from ignorance to literacy.

You might think the rich have become richer and the poor even poorer. But by the standard of basic comfort in essentials, the poorest people on the planet have gained the most. In places like Ireland, Singapore, Finland and Italy, even people who are relatively poor have adequate food, education, lodging and medical care — none of which their ancestors had. Not remotely.

Inequality of financial wealth goes up and down, but over the long term it has been reduced. Financial inequality was greater in 1800 and 1900 than it is now, as even the French economist Thomas Piketty has acknowledged. By the more important standard of basic comfort in consumption, inequality within and between countries has fallen nearly continuously.

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The Formula for a Richer World? Equality, Liberty, Justice - NYTimes.com