By the numbers: The upward march of the billionaires

The world's billionaires increased their wealth by $2.5 billion per day in 2018. There are now more than 2,200 of them, and the amount of wealth stored in offshore tax havens was estimated at $7.6 trillion in 2015.

Reproduced from Oxfam; Chart: Axios Visuals

Go deeper: Billionaires start to lose their luster

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The world's 500 richest people saw their collective net worth grow by 25% in 2019

Priscilla Chan and Mark Zuckerberg. Photo: Ian Tuttle/Getty Images for Breakthrough Prize

The world's 500 richest people added $1.2 trillion to their collective net worth in 2019, boosting their holdings by 25% to $5.9 trillion, according to Bloomberg.

Why it matters: Income inequality has become a key issue for politicians around the globe, highlighted by the fact that the wealthiest 0.1% of Americans now hold a larger share of wealth at any point since 1929 — the start of the Great Depression.

Go deeperArrowDec 27, 2019 - Business

The decade of the very poor and the super rich

The 2010s may be remembered as the decade when the global 1% accumulated unfathomable wealth, but it was also perhaps the best decade ever for the world’s poorest people.

The big picture: The rate of extreme poverty around the world was cut in half over the past decade (15.7% in 2010 to 7.7% now), and all but eradicated in China.

Go deeperArrowDec 30, 2019 - World

Elizabeth Warren on the issues, in under 500 words

Photo: Scott Eisen/Getty Images

Elizabeth Warren is a Massachusetts senator known for her consumer advocacy and efforts to regulate big financial institutions. Her brainchild, the Consumer Financial Protection Bureau, was created in 2011.