 The plan was created by Princeton University economist and New York University School of Law professor David F. Bradford.Bradford states the X tax could alleviate the complexities and avoidance issues plaguing the existing U.S. system, and argues that "the government should exempt from taxation all dividends, interest, and other income from savings.That way, people will be treated equally by the tax system, whether they choose to spend now or save to increase their future spending power."