Economists warn that policies to level the economic playing field come with a hefty price tag. But this so-called 'equality-efficiency trade-off' - has proven difficult to document. The data suggest, instead, that the extraordinary levels of economic inequality now experienced in many economies...

The impact of the post-meltdown Federal Reserve policy of ultra-low interest rates and Quantitative Easing (QE) on income and wealth inequality has become an important policy and political issue. Critics have argued that by raising asset prices, near-zero interest rates and QE have significantly...