The Challenge of Inequality

How many billionaires does it take to match the net worth of half of the world’s population? In 2015, the richest sixty-two persons on the planet owned as much private net wealth as the poorer half of humanity, more than 3.5 billion people. If they decided to go on a field trip together, they would comfortably fit into a large coach. The previous year, eighty-five billionaires were needed to clear that threshold, calling perhaps for a more commodious double-decker bus. And not so long ago, in 2010, no fewer 388 of them had to pool their resources to offset the assets of the global other half, a turnout that would have required a small convoy of vehicles or filled up a typical Boeing 777 or Airbus A340.1 But inequality is not created just by multibillionaires. The richest 1 percent of the world’s households now hold a little more than half of global private net wealth. Inclusion of the assets that some of them conceal in offshore accounts would skew the distribution even further. These disparities are not simply caused by the huge differences in average income between advanced and developing economies. Similar imbalances exist within societies. The wealthiest twenty Americans currently own as much as the bottom half of their country’s households taken together, and the top 1 percent of incomes account for about a fifth of the national total. Inequality has been growing in much of the world. In recent decades, income and wealth have become more unevenly distributed in Europe and North America, in the former Soviet bloc, and in China, India, and elsewhere. And to the one who has, more will be given: in the United States, the best-earning 1 percent of the top 1 percent (those in the highest 0.01 percent income bracket) raised their share to almost six times what it had been in