Could a wealth tax end David Koch’s era of inequality?

Tim Fernholz
Could a wealth tax end David Koch’s era of inequality?

When David Koch was born in 1940, the world was on an egalitarian trend. Koch, who with an estimated net worth of nearly $50 billion was perhaps the 11th richest person on the planet, came with his brother Charles to personify the political power of the ultra-wealthy. For decades, they backed libertarian and conservative political causes, lobbying to protect the family oil business from regulation, and their wealth from taxation.