- Income Inequality Is Costing the U.S. on Social Issues: Much of America’s infant mortality deficit is driven by “excess inequality.” It’s the babies born to nonwhite, nonmarried, nonprosperous women who die so young. http://www.nytimes.com/2015/04/29/business/economy/income-inequality-is-costing-the-us-on-social-issues.html?smid=re-share 15 comments economy