Kuznets curve

The Kuznets curve (/ˈkʌznɛts/) expresses a hypothesis advanced by economist Simon Kuznets in the 1950s and 1960s. According to this hypothesis, as an economy develops, market forces first increase and then decrease economic inequality. The Kuznets curve appeared to be consistent with experience at the time it was proposed. However, since the 1970s, inequality has risen in the US and other developed countries, which invalidates the hypothesis.