For years, wealth and income inequality have been widening at a troubling pace. A recent study estimated that the wealthiest 1 percent of Americans held 42 percent of the nation’s wealth in 2012, up from 28 percent in 1989. Public policies have exacerbated this trend by taxing income earned from investments at a lower rate than income from an ordinary job and by dramatically cutting taxes on inherited wealth. Further, lawmakers have done little to stop aggressive accounting schemes designed to avoid the estate tax altogether.